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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/17509
Title: | Antioxidant enzymes activity and physiological response of tomato (Lycopersicon esculentum M.) genotypes under mild temperature stress |
Authors: | R. H. Laxman , N. K. S. Rao, Geeta Biradar , V. S. J. Sunoj, K. S. Shivashankara, C. B. Pavithra, K. H. Dhanyalakshmi, K. M. Manasa, R. M. Bhatt, A. T. Sadashiva, M. G. Christopher |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Indian Institute of Horticultural Research |
Published/ Complete Date: | 2014-07-16 |
Project Code: | NICRA |
Keywords: | Climate change, Tomato, Temperature gradient tunnel , Scavenging enzyme activity, Physiological traits |
Publisher: | Springer |
Citation: | Five |
Series/Report no.: | Not Available; |
Abstract/Description: | Tomato being sensitive to high temperature experiences mild to high temperature stresses under climate change conditions. To understand the response of tomato genotypes to mild temperature stress, a study was conducted in temperature gradient tunnel facility. The results revealed that across the genotypes studied, specific activity of antioxidant enzymes viz., superoxide dismutase (SOD), peroxidase (POX) and glutathione reductase (GR) increased significantly. Among the genotypes, increase in SOD activity was highest in cv. Arka Vikas, followed by IIHR 2195 and least in Abhinava. The GR activity was highest in Abhinava, followed by IIHR 2195 and least in cv. Arka Vikas. The mild temperature stress caused reduction in catalase (CAT) activity. The decrease in CAT activity and concomitant increase in POX activity was observed in cv. Arka Vikas. Low leaf water potential (Wleaf) and higher electrolyte leakage indicated that the membrane integrity was affected across the tomato genotypes even under mild temperature stress. Among the genotypes studied, cv. Arka Vikas showed greater activity of SOD and POX, higher membrane stability and least reduction in water potential under mild temperature stress. |
Description: | Not Available |
ISSN: | 0019-5502 |
Type(s) of content: | Article |
Sponsors: | ICAR under NICRA project |
Language: | English |
Name of Journal: | Plant Physiology Reports (Indian Journal of Plant Physiology) |
NAAS Rating: | 5.5 |
Volume No.: | 19 |
Page Number: | 161-164 |
Name of the Division/Regional Station: | Division of Plant Physiology and Biochemistry |
Source, DOI or any other URL: | 10.1007/s40502-014-0091-x |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/17509 |
Appears in Collections: | HS-IIHR-Publication |
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