Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture
Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberell...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Huo, Wei [verfasserIn] Zhuang, Chun-hua [verfasserIn] Cao, Ya [verfasserIn] Pu, Meng [verfasserIn] Yao, Hui [verfasserIn] Lou, Lai-qing [verfasserIn] Cai, Qing-sheng [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2011 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Acta physiologiae plantarum - Berlin : Springer, 1997, 34(2011), 1 vom: 20. Juli, Seite 139-150 |
|---|---|
| Übergeordnetes Werk: |
volume:34 ; year:2011 ; number:1 ; day:20 ; month:07 ; pages:139-150 |
| Links: |
|---|
| DOI / URN: |
10.1007/s11738-011-0812-y |
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| Katalog-ID: |
SPR022088288 |
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| 245 | 1 | 0 | |a Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture |
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| 520 | |a Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. | ||
| 650 | 4 | |a Copper |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Energy plant |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Guinea grass ( |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a var.) |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Paclobutrazol (PP333) |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a sp |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Plant growth-promoting bacteria (PGPB) |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Zhuang, Chun-hua |e verfasserin |4 aut | |
| 700 | 1 | |a Cao, Ya |e verfasserin |4 aut | |
| 700 | 1 | |a Pu, Meng |e verfasserin |4 aut | |
| 700 | 1 | |a Yao, Hui |e verfasserin |4 aut | |
| 700 | 1 | |a Lou, Lai-qing |e verfasserin |4 aut | |
| 700 | 1 | |a Cai, Qing-sheng |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g volume:34 |g year:2011 |g number:1 |g day:20 |g month:07 |g pages:139-150 |
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10.1007/s11738-011-0812-y doi (DE-627)SPR022088288 (SPR)s11738-011-0812-y-e DE-627 ger DE-627 rakwb eng 580 ASE 42.41 bkl Huo, Wei verfasserin aut Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. Copper (dpeaa)DE-He213 Energy plant (dpeaa)DE-He213 Guinea grass ( (dpeaa)DE-He213 var.) (dpeaa)DE-He213 Paclobutrazol (PP333) (dpeaa)DE-He213 sp (dpeaa)DE-He213 Plant growth-promoting bacteria (PGPB) (dpeaa)DE-He213 Zhuang, Chun-hua verfasserin aut Cao, Ya verfasserin aut Pu, Meng verfasserin aut Yao, Hui verfasserin aut Lou, Lai-qing verfasserin aut Cai, Qing-sheng verfasserin aut Enthalten in Acta physiologiae plantarum Berlin : Springer, 1997 34(2011), 1 vom: 20. Juli, Seite 139-150 (DE-627)516024906 (DE-600)2245807-4 1861-1664 nnns volume:34 year:2011 number:1 day:20 month:07 pages:139-150 https://dx.doi.org/10.1007/s11738-011-0812-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.41 ASE AR 34 2011 1 20 07 139-150 |
| spelling |
10.1007/s11738-011-0812-y doi (DE-627)SPR022088288 (SPR)s11738-011-0812-y-e DE-627 ger DE-627 rakwb eng 580 ASE 42.41 bkl Huo, Wei verfasserin aut Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. Copper (dpeaa)DE-He213 Energy plant (dpeaa)DE-He213 Guinea grass ( (dpeaa)DE-He213 var.) (dpeaa)DE-He213 Paclobutrazol (PP333) (dpeaa)DE-He213 sp (dpeaa)DE-He213 Plant growth-promoting bacteria (PGPB) (dpeaa)DE-He213 Zhuang, Chun-hua verfasserin aut Cao, Ya verfasserin aut Pu, Meng verfasserin aut Yao, Hui verfasserin aut Lou, Lai-qing verfasserin aut Cai, Qing-sheng verfasserin aut Enthalten in Acta physiologiae plantarum Berlin : Springer, 1997 34(2011), 1 vom: 20. Juli, Seite 139-150 (DE-627)516024906 (DE-600)2245807-4 1861-1664 nnns volume:34 year:2011 number:1 day:20 month:07 pages:139-150 https://dx.doi.org/10.1007/s11738-011-0812-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.41 ASE AR 34 2011 1 20 07 139-150 |
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10.1007/s11738-011-0812-y doi (DE-627)SPR022088288 (SPR)s11738-011-0812-y-e DE-627 ger DE-627 rakwb eng 580 ASE 42.41 bkl Huo, Wei verfasserin aut Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. Copper (dpeaa)DE-He213 Energy plant (dpeaa)DE-He213 Guinea grass ( (dpeaa)DE-He213 var.) (dpeaa)DE-He213 Paclobutrazol (PP333) (dpeaa)DE-He213 sp (dpeaa)DE-He213 Plant growth-promoting bacteria (PGPB) (dpeaa)DE-He213 Zhuang, Chun-hua verfasserin aut Cao, Ya verfasserin aut Pu, Meng verfasserin aut Yao, Hui verfasserin aut Lou, Lai-qing verfasserin aut Cai, Qing-sheng verfasserin aut Enthalten in Acta physiologiae plantarum Berlin : Springer, 1997 34(2011), 1 vom: 20. Juli, Seite 139-150 (DE-627)516024906 (DE-600)2245807-4 1861-1664 nnns volume:34 year:2011 number:1 day:20 month:07 pages:139-150 https://dx.doi.org/10.1007/s11738-011-0812-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.41 ASE AR 34 2011 1 20 07 139-150 |
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10.1007/s11738-011-0812-y doi (DE-627)SPR022088288 (SPR)s11738-011-0812-y-e DE-627 ger DE-627 rakwb eng 580 ASE 42.41 bkl Huo, Wei verfasserin aut Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. Copper (dpeaa)DE-He213 Energy plant (dpeaa)DE-He213 Guinea grass ( (dpeaa)DE-He213 var.) (dpeaa)DE-He213 Paclobutrazol (PP333) (dpeaa)DE-He213 sp (dpeaa)DE-He213 Plant growth-promoting bacteria (PGPB) (dpeaa)DE-He213 Zhuang, Chun-hua verfasserin aut Cao, Ya verfasserin aut Pu, Meng verfasserin aut Yao, Hui verfasserin aut Lou, Lai-qing verfasserin aut Cai, Qing-sheng verfasserin aut Enthalten in Acta physiologiae plantarum Berlin : Springer, 1997 34(2011), 1 vom: 20. Juli, Seite 139-150 (DE-627)516024906 (DE-600)2245807-4 1861-1664 nnns volume:34 year:2011 number:1 day:20 month:07 pages:139-150 https://dx.doi.org/10.1007/s11738-011-0812-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.41 ASE AR 34 2011 1 20 07 139-150 |
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10.1007/s11738-011-0812-y doi (DE-627)SPR022088288 (SPR)s11738-011-0812-y-e DE-627 ger DE-627 rakwb eng 580 ASE 42.41 bkl Huo, Wei verfasserin aut Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. Copper (dpeaa)DE-He213 Energy plant (dpeaa)DE-He213 Guinea grass ( (dpeaa)DE-He213 var.) (dpeaa)DE-He213 Paclobutrazol (PP333) (dpeaa)DE-He213 sp (dpeaa)DE-He213 Plant growth-promoting bacteria (PGPB) (dpeaa)DE-He213 Zhuang, Chun-hua verfasserin aut Cao, Ya verfasserin aut Pu, Meng verfasserin aut Yao, Hui verfasserin aut Lou, Lai-qing verfasserin aut Cai, Qing-sheng verfasserin aut Enthalten in Acta physiologiae plantarum Berlin : Springer, 1997 34(2011), 1 vom: 20. Juli, Seite 139-150 (DE-627)516024906 (DE-600)2245807-4 1861-1664 nnns volume:34 year:2011 number:1 day:20 month:07 pages:139-150 https://dx.doi.org/10.1007/s11738-011-0812-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 42.41 ASE AR 34 2011 1 20 07 139-150 |
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Enthalten in Acta physiologiae plantarum 34(2011), 1 vom: 20. Juli, Seite 139-150 volume:34 year:2011 number:1 day:20 month:07 pages:139-150 |
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Enthalten in Acta physiologiae plantarum 34(2011), 1 vom: 20. Juli, Seite 139-150 volume:34 year:2011 number:1 day:20 month:07 pages:139-150 |
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Copper Energy plant Guinea grass ( var.) Paclobutrazol (PP333) sp Plant growth-promoting bacteria (PGPB) |
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Huo, Wei @@aut@@ Zhuang, Chun-hua @@aut@@ Cao, Ya @@aut@@ Pu, Meng @@aut@@ Yao, Hui @@aut@@ Lou, Lai-qing @@aut@@ Cai, Qing-sheng @@aut@@ |
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2011-07-20T00:00:00Z |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR022088288</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230519084435.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201006s2011 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s11738-011-0812-y</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR022088288</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s11738-011-0812-y-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">580</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">42.41</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Huo, Wei</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2011</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. 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|
| author |
Huo, Wei |
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Huo, Wei ddc 580 bkl 42.41 misc Copper misc Energy plant misc Guinea grass ( misc var.) misc Paclobutrazol (PP333) misc sp misc Plant growth-promoting bacteria (PGPB) Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture |
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580 ASE 42.41 bkl Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture Copper (dpeaa)DE-He213 Energy plant (dpeaa)DE-He213 Guinea grass ( (dpeaa)DE-He213 var.) (dpeaa)DE-He213 Paclobutrazol (PP333) (dpeaa)DE-He213 sp (dpeaa)DE-He213 Plant growth-promoting bacteria (PGPB) (dpeaa)DE-He213 |
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ddc 580 bkl 42.41 misc Copper misc Energy plant misc Guinea grass ( misc var.) misc Paclobutrazol (PP333) misc sp misc Plant growth-promoting bacteria (PGPB) |
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ddc 580 bkl 42.41 misc Copper misc Energy plant misc Guinea grass ( misc var.) misc Paclobutrazol (PP333) misc sp misc Plant growth-promoting bacteria (PGPB) |
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ddc 580 bkl 42.41 misc Copper misc Energy plant misc Guinea grass ( misc var.) misc Paclobutrazol (PP333) misc sp misc Plant growth-promoting bacteria (PGPB) |
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Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture |
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Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture |
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Huo, Wei |
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Acta physiologiae plantarum |
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Acta physiologiae plantarum |
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eng |
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2011 |
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Huo, Wei Zhuang, Chun-hua Cao, Ya Pu, Meng Yao, Hui Lou, Lai-qing Cai, Qing-sheng |
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Elektronische Aufsätze |
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Huo, Wei |
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10.1007/s11738-011-0812-y |
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580 |
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paclobutrazol and plant-growth promoting bacterial endophyte pantoea sp. enhance copper tolerance of guinea grass (panicum maximum) in hydroponic culture |
| title_auth |
Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture |
| abstract |
Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. |
| abstractGer |
Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. |
| abstract_unstemmed |
Abstract As most gramineous plants, guinea grass (Panicum maximum) comprise cellulosic biomass, which may be used as a feedstock for bioenergy. In order to develop such potential energy plants on copper-polluted lands, the hydroponic experiments with Cu, Paclobutrazol (PP333, a kind of antigibberellin) and plant growth-promoting bacterial endophyte (PGPB) treatments were carried out in a greenhouse. The seedlings of two cultivars of guinea grass, GG1 (P. maximumvar. Natsukomaki) and GG2 (P. maximum var. Natsukaze) in 3 weeks old were treated, respectively, with different Cu treatments [0(CK), 100, 200, 300, 400, 500 μM $ l^{−1} $ Cu] for estimating Cu toxicity. The results showed that elevated Cu restrained plant growth and reduced biomass. According to the EC50 value [the Cu concentration when the relative gain in fresh weight ratio was 50% of control] of two tested cultivars, the concentration of Cu for further experiments was decided as 300 μM $ l^{−1} $. Both pretreatments of PP333 (200, 400, 600 mg $ l^{−1} $) and PGPB (Pantoeasp.) significantly alleviated the negative affect caused by stress of 300 μM $ l^{−1} $ Cu. The pretreatment of 400 mg $ l^{−1} $ PP333 promoted both two cultivars in biomass, compared to 300 μM $ l^{−1} $ Cu treat. The inoculation of Pantoea sp. Jp3-3 increased shoot dry weight, compared to Cu treat. The results suggested that the main reason for both PP333 and Pantoea sp. Jp3-3 enhanced Cu tolerance in guinea grass was that their pretreatments significantly decreased Cu absorption and accumulation under excessive Cu stress. The present study has provided a new insight into the exploitation of energy plant in heavy metal polluted condition by the way of plant growth regulation for increasing heavy metal tolerance. |
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Paclobutrazol and plant-growth promoting bacterial endophyte Pantoea sp. enhance copper tolerance of guinea grass (Panicum maximum) in hydroponic culture |
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https://dx.doi.org/10.1007/s11738-011-0812-y |
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Zhuang, Chun-hua Cao, Ya Pu, Meng Yao, Hui Lou, Lai-qing Cai, Qing-sheng |
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| score |
7.402521 |