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http://krishi.icar.gov.in/jspui/handle/123456789/15929
Title: | HETEROSIS FOR ANTIOXIDANT ENZYMES IN RICE HYBRID UNDER ABIOTIC STRESS CONDITIONS |
Other Titles: | Not Available |
Authors: | D. NAGESWARA RAO, S.R.VOLETI, D. SUBRAHMANYAM*, P. RAGHUVEER RAO AND M.S. RAMESHA |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | Directorate of Rice Research, Rajendranagar, Hyderabad-500030, India |
Published/ Complete Date: | 2012-04-17 |
Project Code: | Not Available |
Keywords: | Abiotic stress, catalase, glutathione reductase, heterosis, rice, superoxide dismutase |
Publisher: | Indian Society for Plant Phisiology |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Activities of Super oxide dismutase (SOD), Glutathione reductase (GR), Catalase (CAT) were analyzed in rice hybrid DRRH-2 and its respective male (DR 714-1-2R) and female (IR 68897A) parents under water, salinity and low temperature stresses. The Superoxide dismutase (SOD) activity was significantly increased in all the three stresses and in all the three genotypes, while highest increase was observed under WS. In case of glutathione reductase (GR) activity the hybrid did not show significant change with the type of stress, where as male parent exhibited decrease and female parent exhibited increase in the enzyme activity under water stress and salt stresses. The Catalase (CAT) activity decreased in all the three types of stresses in hybrid and both parents, while the reduction was relatively higher in male parent followed by hybrid. The hybrid DRRH-2 showed distinct heterosis under all the stresses for the activities of SOD and GR as indicated by their heterosis over the better of parents (HOBP) and heterosis over the mean of parents (HOMP) values, while for CAT activity these heterosis values were non significant. According to the results, the heterotic vigor for the antioxidant enzymes (SOD, GR) in this study suggests the improvement of stress tolerance level in the hybrid than the parental lines, which could be an important biochemical basis towards understanding the heterosis under abiotic stress conditions. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Journal |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Plant Physiology Reports (Indian Journal of Plant Physiology) |
NAAS Rating: | 5.5 |
Volume No.: | 17 |
Page Number: | 154-157 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/15929 |
Appears in Collections: | CS-IIRR-Publication |
Files in This Item:
File | Description | Size | Format | |
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2012 IJPP Heterosis DNR.pdf | 76.28 kB | Adobe PDF | View/Open |
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