Triacontanol attenuates drought-induced oxidative stress in Brassica juncea L. by regulating lignification genes, calcium metabolism and the antioxidant system

Copyright © 2021 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 166(2021) vom: 15. Sept., Seite 985-998
1. Verfasser: Ahmad, Javed (VerfasserIn)
Weitere Verfasser: Ali, Arlene A, Al-Huqail, Asma A, Qureshi, M Irfan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Drought Lignin content MYB46 Oxidative stress Phenylalanine ammonia-lyase Triacontanol Antioxidants Fatty Alcohols 1-triacontanol mehr... 767RD0E90B Hydrogen Peroxide BBX060AN9V Ascorbate Peroxidases EC 1.11.1.11 Catalase EC 1.11.1.6 Superoxide Dismutase EC 1.15.1.1 Calcium SY7Q814VUP
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245 1 0 |a Triacontanol attenuates drought-induced oxidative stress in Brassica juncea L. by regulating lignification genes, calcium metabolism and the antioxidant system 
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520 |a Effect of triacontanol on drought-induced stress was studied in Brassica juncea L. Foliage of sixteen-days-old plants was sprayed with concentrations (0, 10, 20 and 30 μM) of triacontanol (TRIA) for 7 days. Subsequently, plants were subjected to drought stress (10% polyethylene glycol, PEG6000) for 7 days. Drought stress increased oxidative stress (TBARS, O2●- and H2O2), however, their contents were reduced by TRIA. Total soluble sugars, reduced glutathione, and proline content in stressed plants were increased by TRIA. Activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), catalase (CAT), and phenylalanine ammonia-lyase (PAL) activity were significantly increased in a dose-dependent manner with TRIA. Potassium (K+) level declined, while magnesium (Mg2+) and calcium (Ca2+) contents increased. The elevated level of lignin under drought with TRIA was significantly associated with MYB46 and PAL gene expression patterns. Altogether, our results suggest that foliar spray of 20 μM TRIA was more operative in reducing the negative impact of drought stress in B. juncea by regulating the antioxidant system, calcium, and lignification 
650 4 |a Journal Article 
650 4 |a Drought 
650 4 |a Lignin content 
650 4 |a MYB46 
650 4 |a Oxidative stress 
650 4 |a Phenylalanine ammonia-lyase 
650 4 |a Triacontanol 
650 7 |a Antioxidants  |2 NLM 
650 7 |a Fatty Alcohols  |2 NLM 
650 7 |a 1-triacontanol  |2 NLM 
650 7 |a 767RD0E90B  |2 NLM 
650 7 |a Hydrogen Peroxide  |2 NLM 
650 7 |a BBX060AN9V  |2 NLM 
650 7 |a Ascorbate Peroxidases  |2 NLM 
650 7 |a EC 1.11.1.11  |2 NLM 
650 7 |a Catalase  |2 NLM 
650 7 |a EC 1.11.1.6  |2 NLM 
650 7 |a Superoxide Dismutase  |2 NLM 
650 7 |a EC 1.15.1.1  |2 NLM 
650 7 |a Calcium  |2 NLM 
650 7 |a SY7Q814VUP  |2 NLM 
700 1 |a Ali, Arlene A  |e verfasserin  |4 aut 
700 1 |a Al-Huqail, Asma A  |e verfasserin  |4 aut 
700 1 |a Qureshi, M Irfan  |e verfasserin  |4 aut 
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