An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars
Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation reg...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Snyman, S. J. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Anmerkung: |
© The Society for In Vitro Biology 2019 |
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| Übergeordnetes Werk: |
Enthalten in: In vitro cellular & developmental biology - Berlin : Springer, 1991, 55(2019), 4 vom: 03. Juli, Seite 403-408 |
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| Übergeordnetes Werk: |
volume:55 ; year:2019 ; number:4 ; day:03 ; month:07 ; pages:403-408 |
| Links: |
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| DOI / URN: |
10.1007/s11627-019-09994-2 |
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| Katalog-ID: |
SPR021237883 |
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| 100 | 1 | |a Snyman, S. J. |e verfasserin |0 (orcid)0000-0002-5451-1151 |4 aut | |
| 245 | 1 | 3 | |a An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars |
| 264 | 1 | |c 2019 | |
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| 520 | |a Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. | ||
| 650 | 4 | |a Sub-soil acidity |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Root regrowth |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Nitrate |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Ammonium |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Citrate |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Naidoo, M. |4 aut | |
| 700 | 1 | |a Watt, M. P. |4 aut | |
| 700 | 1 | |a Rutherford, R. S. |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t In vitro cellular & developmental biology |d Berlin : Springer, 1991 |g 55(2019), 4 vom: 03. Juli, Seite 403-408 |w (DE-627)306365367 |w (DE-600)1497464-2 |x 1475-2689 |7 nnns |
| 773 | 1 | 8 | |g volume:55 |g year:2019 |g number:4 |g day:03 |g month:07 |g pages:403-408 |
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| 912 | |a GBV_ILN_11 | ||
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| 912 | |a GBV_ILN_23 | ||
| 912 | |a GBV_ILN_24 | ||
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| 912 | |a GBV_ILN_39 | ||
| 912 | |a GBV_ILN_40 | ||
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| 912 | |a GBV_ILN_62 | ||
| 912 | |a GBV_ILN_63 | ||
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| 912 | |a GBV_ILN_69 | ||
| 912 | |a GBV_ILN_70 | ||
| 912 | |a GBV_ILN_73 | ||
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| 912 | |a GBV_ILN_90 | ||
| 912 | |a GBV_ILN_95 | ||
| 912 | |a GBV_ILN_100 | ||
| 912 | |a GBV_ILN_101 | ||
| 912 | |a GBV_ILN_105 | ||
| 912 | |a GBV_ILN_110 | ||
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| 912 | |a GBV_ILN_138 | ||
| 912 | |a GBV_ILN_150 | ||
| 912 | |a GBV_ILN_151 | ||
| 912 | |a GBV_ILN_152 | ||
| 912 | |a GBV_ILN_161 | ||
| 912 | |a GBV_ILN_165 | ||
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| 912 | |a GBV_ILN_187 | ||
| 912 | |a GBV_ILN_206 | ||
| 912 | |a GBV_ILN_213 | ||
| 912 | |a GBV_ILN_224 | ||
| 912 | |a GBV_ILN_230 | ||
| 912 | |a GBV_ILN_250 | ||
| 912 | |a GBV_ILN_281 | ||
| 912 | |a GBV_ILN_285 | ||
| 912 | |a GBV_ILN_293 | ||
| 912 | |a GBV_ILN_370 | ||
| 912 | |a GBV_ILN_374 | ||
| 912 | |a GBV_ILN_602 | ||
| 912 | |a GBV_ILN_636 | ||
| 912 | |a GBV_ILN_702 | ||
| 912 | |a GBV_ILN_2001 | ||
| 912 | |a GBV_ILN_2003 | ||
| 912 | |a GBV_ILN_2004 | ||
| 912 | |a GBV_ILN_2005 | ||
| 912 | |a GBV_ILN_2006 | ||
| 912 | |a GBV_ILN_2007 | ||
| 912 | |a GBV_ILN_2008 | ||
| 912 | |a GBV_ILN_2009 | ||
| 912 | |a GBV_ILN_2010 | ||
| 912 | |a GBV_ILN_2011 | ||
| 912 | |a GBV_ILN_2014 | ||
| 912 | |a GBV_ILN_2015 | ||
| 912 | |a GBV_ILN_2018 | ||
| 912 | |a GBV_ILN_2020 | ||
| 912 | |a GBV_ILN_2021 | ||
| 912 | |a GBV_ILN_2025 | ||
| 912 | |a GBV_ILN_2026 | ||
| 912 | |a GBV_ILN_2027 | ||
| 912 | |a GBV_ILN_2031 | ||
| 912 | |a GBV_ILN_2034 | ||
| 912 | |a GBV_ILN_2037 | ||
| 912 | |a GBV_ILN_2038 | ||
| 912 | |a GBV_ILN_2039 | ||
| 912 | |a GBV_ILN_2044 | ||
| 912 | |a GBV_ILN_2048 | ||
| 912 | |a GBV_ILN_2049 | ||
| 912 | |a GBV_ILN_2050 | ||
| 912 | |a GBV_ILN_2055 | ||
| 912 | |a GBV_ILN_2057 | ||
| 912 | |a GBV_ILN_2059 | ||
| 912 | |a GBV_ILN_2061 | ||
| 912 | |a GBV_ILN_2064 | ||
| 912 | |a GBV_ILN_2065 | ||
| 912 | |a GBV_ILN_2068 | ||
| 912 | |a GBV_ILN_2070 | ||
| 912 | |a GBV_ILN_2086 | ||
| 912 | |a GBV_ILN_2088 | ||
| 912 | |a GBV_ILN_2093 | ||
| 912 | |a GBV_ILN_2106 | ||
| 912 | |a GBV_ILN_2107 | ||
| 912 | |a GBV_ILN_2108 | ||
| 912 | |a GBV_ILN_2110 | ||
| 912 | |a GBV_ILN_2111 | ||
| 912 | |a GBV_ILN_2112 | ||
| 912 | |a GBV_ILN_2113 | ||
| 912 | |a GBV_ILN_2116 | ||
| 912 | |a GBV_ILN_2118 | ||
| 912 | |a GBV_ILN_2119 | ||
| 912 | |a GBV_ILN_2122 | ||
| 912 | |a GBV_ILN_2129 | ||
| 912 | |a GBV_ILN_2143 | ||
| 912 | |a GBV_ILN_2144 | ||
| 912 | |a GBV_ILN_2147 | ||
| 912 | |a GBV_ILN_2148 | ||
| 912 | |a GBV_ILN_2152 | ||
| 912 | |a GBV_ILN_2153 | ||
| 912 | |a GBV_ILN_2188 | ||
| 912 | |a GBV_ILN_2190 | ||
| 912 | |a GBV_ILN_2232 | ||
| 912 | |a GBV_ILN_2336 | ||
| 912 | |a GBV_ILN_2446 | ||
| 912 | |a GBV_ILN_2470 | ||
| 912 | |a GBV_ILN_2472 | ||
| 912 | |a GBV_ILN_2507 | ||
| 912 | |a GBV_ILN_2522 | ||
| 912 | |a GBV_ILN_2548 | ||
| 912 | |a GBV_ILN_2939 | ||
| 912 | |a GBV_ILN_2946 | ||
| 912 | |a GBV_ILN_2949 | ||
| 912 | |a GBV_ILN_2951 | ||
| 912 | |a GBV_ILN_4012 | ||
| 912 | |a GBV_ILN_4035 | ||
| 912 | |a GBV_ILN_4037 | ||
| 912 | |a GBV_ILN_4046 | ||
| 912 | |a GBV_ILN_4112 | ||
| 912 | |a GBV_ILN_4125 | ||
| 912 | |a GBV_ILN_4126 | ||
| 912 | |a GBV_ILN_4242 | ||
| 912 | |a GBV_ILN_4246 | ||
| 912 | |a GBV_ILN_4249 | ||
| 912 | |a GBV_ILN_4251 | ||
| 912 | |a GBV_ILN_4305 | ||
| 912 | |a GBV_ILN_4306 | ||
| 912 | |a GBV_ILN_4307 | ||
| 912 | |a GBV_ILN_4313 | ||
| 912 | |a GBV_ILN_4322 | ||
| 912 | |a GBV_ILN_4323 | ||
| 912 | |a GBV_ILN_4324 | ||
| 912 | |a GBV_ILN_4325 | ||
| 912 | |a GBV_ILN_4326 | ||
| 912 | |a GBV_ILN_4333 | ||
| 912 | |a GBV_ILN_4334 | ||
| 912 | |a GBV_ILN_4335 | ||
| 912 | |a GBV_ILN_4336 | ||
| 912 | |a GBV_ILN_4338 | ||
| 912 | |a GBV_ILN_4346 | ||
| 912 | |a GBV_ILN_4393 | ||
| 912 | |a GBV_ILN_4700 | ||
| 951 | |a AR | ||
| 952 | |d 55 |j 2019 |e 4 |b 03 |c 07 |h 403-408 | ||
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10.1007/s11627-019-09994-2 doi (DE-627)SPR021237883 (SPR)s11627-019-09994-2-e DE-627 ger DE-627 rakwb eng Snyman, S. J. verfasserin (orcid)0000-0002-5451-1151 aut An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Society for In Vitro Biology 2019 Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. Sub-soil acidity (dpeaa)DE-He213 Root regrowth (dpeaa)DE-He213 Nitrate (dpeaa)DE-He213 Ammonium (dpeaa)DE-He213 Citrate (dpeaa)DE-He213 Naidoo, M. aut Watt, M. P. aut Rutherford, R. S. aut Enthalten in In vitro cellular & developmental biology Berlin : Springer, 1991 55(2019), 4 vom: 03. Juli, Seite 403-408 (DE-627)306365367 (DE-600)1497464-2 1475-2689 nnns volume:55 year:2019 number:4 day:03 month:07 pages:403-408 https://dx.doi.org/10.1007/s11627-019-09994-2 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_101 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_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 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_374 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_2939 GBV_ILN_2946 GBV_ILN_2949 GBV_ILN_2951 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_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_4346 GBV_ILN_4393 GBV_ILN_4700 AR 55 2019 4 03 07 403-408 |
| spelling |
10.1007/s11627-019-09994-2 doi (DE-627)SPR021237883 (SPR)s11627-019-09994-2-e DE-627 ger DE-627 rakwb eng Snyman, S. J. verfasserin (orcid)0000-0002-5451-1151 aut An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Society for In Vitro Biology 2019 Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. Sub-soil acidity (dpeaa)DE-He213 Root regrowth (dpeaa)DE-He213 Nitrate (dpeaa)DE-He213 Ammonium (dpeaa)DE-He213 Citrate (dpeaa)DE-He213 Naidoo, M. aut Watt, M. P. aut Rutherford, R. S. aut Enthalten in In vitro cellular & developmental biology Berlin : Springer, 1991 55(2019), 4 vom: 03. Juli, Seite 403-408 (DE-627)306365367 (DE-600)1497464-2 1475-2689 nnns volume:55 year:2019 number:4 day:03 month:07 pages:403-408 https://dx.doi.org/10.1007/s11627-019-09994-2 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_101 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_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 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_374 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_2939 GBV_ILN_2946 GBV_ILN_2949 GBV_ILN_2951 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_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_4346 GBV_ILN_4393 GBV_ILN_4700 AR 55 2019 4 03 07 403-408 |
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10.1007/s11627-019-09994-2 doi (DE-627)SPR021237883 (SPR)s11627-019-09994-2-e DE-627 ger DE-627 rakwb eng Snyman, S. J. verfasserin (orcid)0000-0002-5451-1151 aut An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Society for In Vitro Biology 2019 Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. Sub-soil acidity (dpeaa)DE-He213 Root regrowth (dpeaa)DE-He213 Nitrate (dpeaa)DE-He213 Ammonium (dpeaa)DE-He213 Citrate (dpeaa)DE-He213 Naidoo, M. aut Watt, M. P. aut Rutherford, R. S. aut Enthalten in In vitro cellular & developmental biology Berlin : Springer, 1991 55(2019), 4 vom: 03. Juli, Seite 403-408 (DE-627)306365367 (DE-600)1497464-2 1475-2689 nnns volume:55 year:2019 number:4 day:03 month:07 pages:403-408 https://dx.doi.org/10.1007/s11627-019-09994-2 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_101 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_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 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_374 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_2939 GBV_ILN_2946 GBV_ILN_2949 GBV_ILN_2951 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_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_4346 GBV_ILN_4393 GBV_ILN_4700 AR 55 2019 4 03 07 403-408 |
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10.1007/s11627-019-09994-2 doi (DE-627)SPR021237883 (SPR)s11627-019-09994-2-e DE-627 ger DE-627 rakwb eng Snyman, S. J. verfasserin (orcid)0000-0002-5451-1151 aut An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Society for In Vitro Biology 2019 Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. Sub-soil acidity (dpeaa)DE-He213 Root regrowth (dpeaa)DE-He213 Nitrate (dpeaa)DE-He213 Ammonium (dpeaa)DE-He213 Citrate (dpeaa)DE-He213 Naidoo, M. aut Watt, M. P. aut Rutherford, R. S. aut Enthalten in In vitro cellular & developmental biology Berlin : Springer, 1991 55(2019), 4 vom: 03. Juli, Seite 403-408 (DE-627)306365367 (DE-600)1497464-2 1475-2689 nnns volume:55 year:2019 number:4 day:03 month:07 pages:403-408 https://dx.doi.org/10.1007/s11627-019-09994-2 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_101 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_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 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_374 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_2939 GBV_ILN_2946 GBV_ILN_2949 GBV_ILN_2951 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_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_4346 GBV_ILN_4393 GBV_ILN_4700 AR 55 2019 4 03 07 403-408 |
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10.1007/s11627-019-09994-2 doi (DE-627)SPR021237883 (SPR)s11627-019-09994-2-e DE-627 ger DE-627 rakwb eng Snyman, S. J. verfasserin (orcid)0000-0002-5451-1151 aut An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Society for In Vitro Biology 2019 Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. Sub-soil acidity (dpeaa)DE-He213 Root regrowth (dpeaa)DE-He213 Nitrate (dpeaa)DE-He213 Ammonium (dpeaa)DE-He213 Citrate (dpeaa)DE-He213 Naidoo, M. aut Watt, M. P. aut Rutherford, R. S. aut Enthalten in In vitro cellular & developmental biology Berlin : Springer, 1991 55(2019), 4 vom: 03. Juli, Seite 403-408 (DE-627)306365367 (DE-600)1497464-2 1475-2689 nnns volume:55 year:2019 number:4 day:03 month:07 pages:403-408 https://dx.doi.org/10.1007/s11627-019-09994-2 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_101 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_165 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 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_374 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_2939 GBV_ILN_2946 GBV_ILN_2949 GBV_ILN_2951 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_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_4346 GBV_ILN_4393 GBV_ILN_4700 AR 55 2019 4 03 07 403-408 |
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Enthalten in In vitro cellular & developmental biology 55(2019), 4 vom: 03. Juli, Seite 403-408 volume:55 year:2019 number:4 day:03 month:07 pages:403-408 |
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Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. 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Snyman, S. J. |
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Snyman, S. J. misc Sub-soil acidity misc Root regrowth misc Nitrate misc Ammonium misc Citrate An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars |
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An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars Sub-soil acidity (dpeaa)DE-He213 Root regrowth (dpeaa)DE-He213 Nitrate (dpeaa)DE-He213 Ammonium (dpeaa)DE-He213 Citrate (dpeaa)DE-He213 |
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An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars |
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10.1007/s11627-019-09994-2 |
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in vitro screening system to assess aluminum toxicity in sugarcane (saccharum spp.) cultivars |
| title_auth |
An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars |
| abstract |
Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. © The Society for In Vitro Biology 2019 |
| abstractGer |
Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. © The Society for In Vitro Biology 2019 |
| abstract_unstemmed |
Abstract Mutagenic breeding is an approach being developed especially for those characteristics that are not inherited through conventional genetic hybridization. Soil acidity and aluminum ($ Al^{3+} $) toxicity limit sugarcane production, particularly in leached soils in the coastal cultivation regions in South Africa. An in vitro screening procedure was developed based on plantlet re-rooting in $ Al^{3+} $-containing medium to select putative $ Al^{3+} $ tolerant variants produced by induced mutagenesis. A preliminary test did not show any difference among three cultivars in their ability to re-root in the presence of $ Al^{3+} $. Subsequent work focused on Saccharum sp. ‘NCo376’ and two $ Al^{3+} $ concentrations (15 and 45 mM), representing $ LC_{50} $ and $ LC_{90} $ re-rooting inhibition. In an attempt to increase the stringency of the selection conditions, the possible effects of inorganic nitrogen (N) forms in the culture media on $ Al^{3+} $ toxicity were investigated. The form of N affected root regrowth and citrate exudation. Sugarcane plantlets showed an uptake preference for ammonium ($ NH_{4} $+) over nitrate ($ NO_{3} $−), and 10 and 20 mM $ NH_{4} $+ appeared to alleviate $ Al^{3+} $ toxicity compared with $ NO_{3} $−. Although in agricultural soils $ NO_{3} $− is the dominant form of N, it can readily leach into the sub-soil, in which deep roots encounter $ Al^{3+} $ toxicity in the presence of $ NO_{3} $−. Therefore, the ability to withstand the toxic effects of $ Al^{3+} $ in the presence of $ NO_{3} $− could be beneficial for N use efficiency and access to water at depths during drought. © The Society for In Vitro Biology 2019 |
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| title_short |
An in vitro screening system to assess aluminum toxicity in sugarcane (Saccharum spp.) cultivars |
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https://dx.doi.org/10.1007/s11627-019-09994-2 |
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Naidoo, M. Watt, M. P. Rutherford, R. S. |
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2024-07-03T21:16:24.283Z |
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| score |
7.4007034 |