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- Title
Response of root protective enzymes to waterlogging at different growth stages of peanut.
- Authors
TAN Hong-jiao; LIU Deng -wang; LI Lin; MA Jie; XIAO Mi; WANG Jing
- Abstract
In order to research the response of root protective enzyme (SOD, POD, CAT) and MDA on the different growth stages of 2 different typical yield waterlogging tolerance peanut varieties, Yuhua 15 (waterlogging tolerance) and Hua 269 (sensitive), simulation experiment was used under rhizosphere waterlogged. Results showed that, there was a big diiference in the response of waterlogging on diflerent varieties and growth stages of peanut. SOD, POD and CAT activity declined, but MDA content increased in Yuhua 15; SOD activity first increased and then decreased, but CAT activity first decreased and then increased, while POD activity and MDA content increased in Hua 269 after peanut waterlogged at the seedling stage. SOD, POD and CAT activity first increased and then decreased, while MDA content reduced in Yuhua 15 ; SOD, CAT activiy and MDA content first decreased and then increased, yet POD activity increased in Hua 269 after peanut waterlogged at the flowering stage. Conclusion: Waterlogging had a negative impact on root internal physiology, and it had greater impact in seedling stage than that in the flowering stage. The waterlogging tolerance of Yuhua 15 was weaker than Hua 269 in seedling stage but stronger in flowering stage, while the activities of protective enzymes (SOD, POD, CAT) appeared more complicated and less predictable.
- Subjects
PEANUTS; PLANT growth; PLANT roots; PLANT enzymes; WATERLOGGING (Soils); PEANUT varieties
- Publication
Chinese Journal of Oil Crop Sciences, 2014, Vol 36, Issue 6, p819
- ISSN
1007-9084
- Publication type
Article
- DOI
10.7505/j.issn.1007-9084.2014.06.020