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Exogenous Sulphydryl Improves Membrane Stabilization, Photosynthesis and Antioxidant Defense Systems in Vigna aconitifolia L. Under Water Stress

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Title Exogenous Sulphydryl Improves Membrane Stabilization, Photosynthesis and Antioxidant Defense Systems in Vigna aconitifolia L. Under Water Stress
Not Available
 
Creator N.S. Nathawat
V.S. Rathore
B. Meel
S. Bhardwaj
Bhargava, R.
 
Subject Antioxidant enzymes, Gas exchange parameters, Sulphydryl compounds, Water relation, Vigna aconitifolia, Yield
 
Description Not Available
A 2-year (2010–2011) field experiment was conducted under hot arid environment at Bikaner, India to investigate the effects of exogenous sulphydryl (–SH) compounds (thioglycolic acid and thiourea) on the water relation, malondialdehyde (MDA) content, membrane stability, photosynthetic pigment contents, gas exchange parameters and antioxidant enzyme activities in moth bean (Vigna aconitifolia L.) under water limiting environment. Foliar application of –SH compounds significantly reduced MDA content and increased membrane stability, photosynthetic pigment content, gas exchange parameters and antioxidant enzyme activities. The –SH treated plants had 9–14, 10–14, 17–25, 16–74, 14–37% higher relative water content, membrane stability index, total chlorophyll content, antioxidant enzyme activities, and net photosynthetic rate (PN), respectively, whereas the MDA content was 12–21% lower, as compared to non-treated plants. Results suggest that under water limiting situation, exogenous –SH compound application improves photosynthesis, protects plants against oxidative damage by scavenging ROS and minimizing MDA content by elevated antioxidant enzyme activities. Results indicate that exogenous –SH application enhances the activities of antioxidant enzymes and maintains higher photosynthetic rate under water limiting environment and thus helps to improve drought tolerance in moth bean.
Not Available
 
Date 2019-05-13T11:45:34Z
2019-05-13T11:45:34Z
2018-01-01
 
Type Research Paper
 
Identifier Not Available
ISSN 0369-8211
http://krishi.icar.gov.in/jspui/handle/123456789/19425
 
Language English
 
Relation Not Available;
 
Publisher Springer