Publications of NIPGR Scientists

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Author: search.filters.author.Pandey, GarimaSubject: search.filters.subject.DNA methylation

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    Chromatin-based epigenetic regulation of plant abiotic stress response
    (Bentham Science, 2016) Pandey, Garima; Sharma, Namisha; Sahu, Pranav Pankaj; Prasad, Manoj
    Plants are continuously exposed to various abiotic and biotic factors limiting their growth and reproduction. In response, they need various sophisticated ways to adapt to adverse environmental conditions without compromising their proper development, reproductive success and eventually survival. This requires an intricate network to regulate gene expression at transcriptional and post-transcriptional levels, including epigenetic switches. Changes in chromatin modifications such as DNA and histone methylation have been observed in plants upon exposure to several abiotic stresses. In the present review, we highlight the changes of DNA methylation in diverse plants in response to several abiotic stresses such as salinity, drought, cold and heat. We also discuss the progresses made in understanding how these DNA methylation changes might contribute to the abiotic stress tolerance.
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    Epigenetic mechanisms of plant stress responses and adaptation
    (Springer, 2013) Sahu, Pranav Pankaj; Pandey, Garima; Sharma, Namisha; Puranik, Swati; Muthamilarasan, Mehanathan; Prasad, Manoj
    Epigenetics has become one of the hottest topics of research in plant functional genomics since it appears promising in deciphering and imparting stress-adaptive potential in crops and other plant species. Recently, numerous studies have provided new insights into the epigenetic control of stress adaptation. Epigenetic control of stress-induced phenotypic response of plants involves gene regulation. Growing evidence suggest that methylation of DNA in response to stress leads to the variation in phenotype. Transposon mobility, siRNA-mediated methylation and host methyltransferase activation have been implicated in this process. This review presents the current status of epigenetics of plant stress responses with a view to use this knowledge towards engineering plants for stress tolerance.