Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress
Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Mei-mei HU [verfasserIn] Qiao-hui DOU [verfasserIn] Xiu-min CUI [verfasserIn] Yan-hong LOU [verfasserIn] Yu-ping ZHUGE [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Journal of Integrative Agriculture - Elsevier, 2021, 18(2019), 5, Seite 1130-1137 |
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| Übergeordnetes Werk: |
volume:18 ; year:2019 ; number:5 ; pages:1130-1137 |
| Links: |
|---|
| DOI / URN: |
10.1016/S2095-3119(18)62017-9 |
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| Katalog-ID: |
DOAJ076271161 |
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| 520 | |a Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. | ||
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10.1016/S2095-3119(18)62017-9 doi (DE-627)DOAJ076271161 (DE-599)DOAJ1e565f89db2f451693061135125ec5e0 DE-627 ger DE-627 rakwb eng S1-972 Mei-mei HU verfasserin aut Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. tomato seedlings polyaspartic acid Cu+Cd combined stress Agriculture (General) Qiao-hui DOU verfasserin aut Xiu-min CUI verfasserin aut Yan-hong LOU verfasserin aut Yu-ping ZHUGE verfasserin aut In Journal of Integrative Agriculture Elsevier, 2021 18(2019), 5, Seite 1130-1137 (DE-627)718831349 (DE-600)2668746-X 23523425 nnns volume:18 year:2019 number:5 pages:1130-1137 https://doi.org/10.1016/S2095-3119(18)62017-9 kostenfrei https://doaj.org/article/1e565f89db2f451693061135125ec5e0 kostenfrei http://www.sciencedirect.com/science/article/pii/S2095311918620179 kostenfrei https://doaj.org/toc/2095-3119 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_647 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_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 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_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 18 2019 5 1130-1137 |
| spelling |
10.1016/S2095-3119(18)62017-9 doi (DE-627)DOAJ076271161 (DE-599)DOAJ1e565f89db2f451693061135125ec5e0 DE-627 ger DE-627 rakwb eng S1-972 Mei-mei HU verfasserin aut Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. tomato seedlings polyaspartic acid Cu+Cd combined stress Agriculture (General) Qiao-hui DOU verfasserin aut Xiu-min CUI verfasserin aut Yan-hong LOU verfasserin aut Yu-ping ZHUGE verfasserin aut In Journal of Integrative Agriculture Elsevier, 2021 18(2019), 5, Seite 1130-1137 (DE-627)718831349 (DE-600)2668746-X 23523425 nnns volume:18 year:2019 number:5 pages:1130-1137 https://doi.org/10.1016/S2095-3119(18)62017-9 kostenfrei https://doaj.org/article/1e565f89db2f451693061135125ec5e0 kostenfrei http://www.sciencedirect.com/science/article/pii/S2095311918620179 kostenfrei https://doaj.org/toc/2095-3119 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_647 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_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 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_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 18 2019 5 1130-1137 |
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10.1016/S2095-3119(18)62017-9 doi (DE-627)DOAJ076271161 (DE-599)DOAJ1e565f89db2f451693061135125ec5e0 DE-627 ger DE-627 rakwb eng S1-972 Mei-mei HU verfasserin aut Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. tomato seedlings polyaspartic acid Cu+Cd combined stress Agriculture (General) Qiao-hui DOU verfasserin aut Xiu-min CUI verfasserin aut Yan-hong LOU verfasserin aut Yu-ping ZHUGE verfasserin aut In Journal of Integrative Agriculture Elsevier, 2021 18(2019), 5, Seite 1130-1137 (DE-627)718831349 (DE-600)2668746-X 23523425 nnns volume:18 year:2019 number:5 pages:1130-1137 https://doi.org/10.1016/S2095-3119(18)62017-9 kostenfrei https://doaj.org/article/1e565f89db2f451693061135125ec5e0 kostenfrei http://www.sciencedirect.com/science/article/pii/S2095311918620179 kostenfrei https://doaj.org/toc/2095-3119 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_647 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_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 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_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 18 2019 5 1130-1137 |
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10.1016/S2095-3119(18)62017-9 doi (DE-627)DOAJ076271161 (DE-599)DOAJ1e565f89db2f451693061135125ec5e0 DE-627 ger DE-627 rakwb eng S1-972 Mei-mei HU verfasserin aut Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. tomato seedlings polyaspartic acid Cu+Cd combined stress Agriculture (General) Qiao-hui DOU verfasserin aut Xiu-min CUI verfasserin aut Yan-hong LOU verfasserin aut Yu-ping ZHUGE verfasserin aut In Journal of Integrative Agriculture Elsevier, 2021 18(2019), 5, Seite 1130-1137 (DE-627)718831349 (DE-600)2668746-X 23523425 nnns volume:18 year:2019 number:5 pages:1130-1137 https://doi.org/10.1016/S2095-3119(18)62017-9 kostenfrei https://doaj.org/article/1e565f89db2f451693061135125ec5e0 kostenfrei http://www.sciencedirect.com/science/article/pii/S2095311918620179 kostenfrei https://doaj.org/toc/2095-3119 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_647 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_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 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_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 18 2019 5 1130-1137 |
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The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. 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Mei-mei HU |
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Mei-mei HU misc S1-972 misc tomato seedlings misc polyaspartic acid misc Cu+Cd combined stress misc Agriculture (General) Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress |
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S1-972 Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress tomato seedlings polyaspartic acid Cu+Cd combined stress |
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Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress |
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Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress |
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polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress |
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Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress |
| abstract |
Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. |
| abstractGer |
Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. |
| abstract_unstemmed |
Polyaspartic acid (PASP) is a nontoxic, biodegradable, environmentally friendly polymer and is widely used as a fertilizer synergist in agricultural production. In many old orchards and vegetable gardens, highly fertile soil is often accompanied by severe heavy metal contamination. The present study was designed to investigate mineral element interactions mediated by PASP under copper (Cu)+cadmium (Cd) combined stress to provide reasonable suggestions for scientific fertilization. A pot experiment was conducted in which tomato seedlings served as plant materials. A concentration of 700 mg L−1 PASP and foliar spraying application methods were selected based on previous experiments. Four treatments were applied: normal soil (control (CK)), Cu+Cd (combined stress), Cu+Cd+PASP, and normal soil+PASP. The plant biomass, root activity, and mineral elements were measured, and these data were analyzed by Data Processing System (DPS) statistical software. The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity. |
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Polyaspartic acid mediates the absorption and translocation of mineral elements in tomato seedlings under combined copper and cadmium stress |
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The results showed that, under Cu+Cd combined stress, PASP promoted stem diameter growth, root activity and chlorophyll content and ultimately increased the biomass of tomato seedlings to different degrees. Moreover, the content of both Cu and Cd and their individual accumulation in plants decreased. PASP increased the distribution of Cu and Cd in the roots under Cu+Cd combined stress, and the translocation ability from the roots to shoots was significantly restricted. With respect to essential elements, PASP promoted mainly the absorption and translocation of potassium (K), calcium (Ca), and magnesium (Mg), which greatly exerted physiological roles. However, the variation trends of Cu and Cd under normal soil conditions contrasted with those under stress conditions. With respect to essential elements other than K, Ca, and Mg, PASP mostly restrained their absorption but promoted their translocation. The regulatory mechanism of PASP differed between the combined stress conditions and normal soil conditions. Under the combined stress conditions, PASP seemed to mainly promote these advantageous factors that exert physiological regulatory functions. Under normal soil conditions, PASP mainly acted as a biological stimulant or signaling molecule for increased nutrient efficiency, which caused greater biomass productivity.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">tomato seedlings</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">polyaspartic acid</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Cu+Cd combined stress</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Agriculture (General)</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Qiao-hui DOU</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Xiu-min CUI</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Yan-hong 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