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Response of Lablab purpureus L. to high temperature stress and role of exogenous protectants in mitigating high temperature induced oxidative damages

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Title Response of Lablab purpureus L. to high temperature stress and role of exogenous protectants in mitigating high temperature induced oxidative damages
Not Available
 
Creator Nagendra Rai,
Rai KK
Shashi Pandey Rai
 
Subject High temperature • Salicylic acid • Nitric oxide • Defense • Genes • Proteome analysis
 
Description Not Available
Present study was conducted to explore the role of exogenous salicylic acid (SA), sodium nitroprusside (SNP), abscisic acid ,(ABA) and proline (PRO) in mitigating high-temperature (HT) induced oxidative stress in different Lablab purpureus L. cultivars. The attempt was made to examine whether these phytohormones, when applied exogenously, were able to regulate plant morpho-physiological behavior by modulating genes and proteins involved in antioxidant defense system. The HT stress induced membrane damage, degraded chlorophyll, generated redox metabolites and significantly reduced growth and biomass in all the cultivars. Among all the four treatments, foliar application of SA and SNP were most effective in the regulation of growth and physiological processes of the cultivars compared to ABA and PRO applications. Thus, signifying the protective role of SA and SNP in mitigation of HT induced oxidative stress and conferring HT stress tolerance in the cultivars. Gene expression and leaf proteome analysis revealed that these phytohormones were also involved in regulation of defense related gene expression, stress inducible proteins and de novo synthesis of specific proteins under HT stress.The experimental findings depict that foliar applications of SA and SNP enhances HT stress tolerance in lablab cultivars by modulating antioxidant defense system and by regulating bio-physical growth more effectively as compared to ABA and PRO application.
Not Available
 
Date 2019-07-26T10:19:52Z
2019-07-26T10:19:52Z
2018-08-14
 
Type Research Paper
 
Identifier Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/21774
 
Language English
 
Relation Not Available;
 
Publisher Molecular Biology Reports An International Journal on Molecular and Cellular Biology, Springer