Stress responsive DEAD-box helicases: a new pathway to engineer plant stress tolerance

Journal of Photochemistry and Photobiology. B, Biology
Ajay Amar Vashisht, Narendra Tuteja

Abstract

Abiotic stresses including various environmental factors adversely affect plant growth and limit agricultural production worldwide. Minimizing these losses is a major area of concern for all countries. Therefore, it is desirable to develop multi-stress tolerant varieties. Salinity, drought, and cold are among the major environmental stresses that greatly influence the growth, development, survival, and yield of plants. UV-B radiation of sunlight, which damages the cellular genomes, is another growth-retarding factor. Several genes are induced under the influence of various abiotic stresses. Among these are DNA repair genes, which are induced in response to the DNA damage. Since the stresses affect the cellular gene expression machinery, it is possible that molecules involved in nucleic acid metabolism including helicases are likely to be affected. The light-driven shifts in redox-potential can also initiate the helicase gene expression. Helicases are ubiquitous enzymes that catalyse the unwinding of energetically stable duplex DNA (DNA helicases) or duplex RNA secondary structures (RNA helicases). Most helicases are members of DEAD-box protein superfamily and play essential roles in basic cellular processes such as DNA replicat...Continue Reading

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Citations

Mar 3, 2011·Plant Molecular Biology·Hung Quang DangNarendra Tuteja
Jul 31, 2007·Journal of Bacteriology·Eddie J CytrynMichael J Sadowsky
May 21, 2011·BMC Plant Biology·Nuria Sánchez-PonsCarlos M Vicient
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Aug 18, 2012·Plant Signaling & Behavior·Anca MacoveiNarendra Tuteja
Aug 19, 2011·Plant Signaling & Behavior·Marjan M TajrishiNarendra Tuteja
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Oct 18, 2012·Plant Signaling & Behavior·Dipesh Kumar TrivediNarendra Tuteja
May 2, 2009·Developmental Biology·Amalia RosnerBaruch Rinkevich

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