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http://dx.doi.org/10.5010/JPB.2016.43.3.376

Overexpression of NtROS2a gene encoding cytosine DNA demethylation enhances drought tolerance in transgenic rice  

Choi, Jang Sun (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA)
Lee, In Hye (Department of Horticultural Life Science, Hankyong National University)
Cho, Yong-Gu (Department of Crop Science, Chungbuk National University)
Jung, Yu Jin (Department of Horticultural Life Science, Hankyong National University)
Kang, Kwon Kyoo (Department of Horticultural Life Science, Hankyong National University)
Publication Information
Journal of Plant Biotechnology / v.43, no.3, 2016 , pp. 376-382 More about this Journal
Abstract
DNA methylation regulations gene expression, thus having pivotal roles in a myriad of physiological and pathological processes. In this study, the morphology and stress tolerance of transgenic rice overexpressing NtROS2a were determined. Transgenic plants exhibited less and shorter lateral shoots. Under various treatments, rice overexpressing NtROS2a showed alleviation of damage symptoms with higher survival rate. After drought and re-watering treatment, transgenic rice seedlings restored their normal growth. However, wild type plants could not be rescued. These findings indicate that overexpression of NtROS2a gene in rice seedlings can increase their tolerance to drought stresses.
Keywords
DNA demethylation; NtROS2a transgenic rice; drought stress;
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