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Evaluation of Differences Among Vigna aconitifolia Varieties for Acquired Thermotolerance

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Title Evaluation of Differences Among Vigna aconitifolia Varieties for Acquired Thermotolerance
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Creator Sharma Ramavtar
Jain Manish
Kumar Sushil
Vinod Kumar
 
Subject Heat shock protein
Moth bean
Thermotolerance
Enzyme activity
Protein profiling
 
Description Not Available
The induction of thermotolerance using the efficacy of heat acclimation was analyzed in nine varieties of moth bean (Vigna aconitifolia Jacq.), including those derived through mutation breeding. Seedlings maintained at 27 _C were
exposed to lethal temperature with or without heat-acclimation treatment. All the nine varieties sustained an abrupt rise in temperature up to 42 _C; however, 47 _C proved detrimental to all the varieties used, with CZM-99, RMB-75, and RMO-40 showing resistance. Heat acclimation followed by lethal temperature induced acquired thermo-tolerance in all the varieties
except RMO-225 and RMO-435. An increase in the protein level was observed up to 37 _C, while no alteration recorded in protein content at heat-acclimation and lethal temperature. The maximum and significant increase in the level of proline content was observed in CZM-99, RMB-75, and RMO-40. Acquired thermotolerance was also found to be associated with the
induction of peroxidase (POX), ascorbic peroxidase (APOX), and catalase (CAT) activities. Maximum activities of enzymes were recorded for POX at heat-acclimation temperature (42 _C), and for CAT and APOX at sub-optimal temperature (37 _C). Among all the studied enzymes, only CAT showed greater activity at lethal temperature in all the accessions except var. Jwala.
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Date 2020-12-23T11:06:34Z
2020-12-23T11:06:34Z
2014-04-01
 
Type Research Paper
 
Identifier 67. Sharma, Ramavtar; Jain, Manish; Kumar Sushil. 2014. Evaluation of Differences Among Vigna aconitifolia Varieties for Acquired Thermotolerance. Agricultural Research (2014) 3: 104-112
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http://krishi.icar.gov.in/jspui/handle/123456789/43597
 
Language English
 
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Publisher Not Available