Current Opinion in Biotechnology 2014, 26 :62–70</P>This review comes from a themed issue on Plant biotechnology </P>Edited by Birger Lindberg Møller and R George Ratcliffe </P>For a complete overview see the Issue and the Editorial </P>Available online 23rd October 2013</P>0958-1669/$ – see front matter, © 2013 Elsevier Ltd. All rights reserved.</P>http://dx.doi.org/10.1016/j.copbio.2013.09.011 </P>Introduction</h5> One of the most active fields of research in plant science focuses on the understanding of plant molecular, physiological and genetic responses to environmental stress conditions, and the development of approaches towards improving tolerance and acclimation. Drought, salinity, extreme temperatures and high irradiation among a plethora of sources of abiotic stress, are perceived by sensor systems leading to the activation of complex regulatory networks controlling the expression of effector genes to counteract the detrimental effects and re-establish cellular homeostasis [ 1,2 • ].</P>The classical approach to engineer plants for enhanced tolerance to abiotic stress consists in strengthening the endogenous systems by intervening at different levels of the response, from sensors and signalling/regulatory elements (e.g. kinases, transcription factors), to direct-action genes or effectors (e.g. antioxidant enzymes, heat-shock proteins, enzymes for the synthesis of osmo-protectants) [ 2 • ,3,4 ]. Even though this strategy shows relative levels of
Current Opinion in Biotechnology – Elsevier
Published: Apr 1, 2014
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