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Over-expression of dehydrin gene, OsDhn1, improves drought and salt stress tolerance through scavenging of reactive oxygen species in rice (Oryza sativa L.)

http://hdl.handle.net/20.500.12678/0000002436
38f3eccc-27c1-4a9c-8345-6b28600b5b1b
fe5f6d66-a2e7-4a86-815b-7ef89b5ec6a5
Publication type
Journal article
Upload type
Publication
Title
Title Over-expression of dehydrin gene, OsDhn1, improves drought and salt stress tolerance through scavenging of reactive oxygen species in rice (Oryza sativa L.)
Language en
Publication date 2014
Authors
Kumar, Manu
Lee, Sang-Choon
Kim, Ji-Youn
Kim, Soo-Jin
San San Aye
Kim, Seong-Ryong
Description
Various environmental stresses limit the plant growth and productivity. Earlier we reported the stress inducible dehydrin gene, OsDhn1, in rice. In this study we generated OsDhn1-overexpression transgenic rice plants (OsDhn1-OXs) to understand the dehydrin function. OsDhn1-OXs showed an enhanced drought and salt stress tolerance as judged by chlorophyll fluorescence (Fv/Fm), fresh and dry weight, water and chlorophyll content, and survival ratio. Furthermore, OsDhn1-OXs showed significantly increased tolerance to methyl viologen (MV)-induced oxidative stress. Under salt and drought stress condition, OsDhn1-OXs maintained relatively low level of H2O2 as compared to wild type plants. Taken together, it is suggested that OsDhn1 plays an important role in the stress tolerance via scavenging reactive oxygen species (ROS).
Keywords
Abiotic Stress
Identifier http://uyr.uy.edu.mm/handle/123456789/179
Journal articles
Journal of Plant Biology
57
Conference papaers
Books/reports/chapters
Thesis/dissertations
0
0
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