tailieunhanh - Abiotic stress tolerance in legumes – Critical approaches

Legumes are well recognized for their nutritional and health benefits as well as for their impact in the sustainability of agricultural systems. The threatening scenario imposed by climate change highlights the need for concerted research approaches in order to develop crops that are able to cope with environmental stresses, while increasing yield and quality. During the last decade, some physiological components and molecular players underlying abiotic stress responses of a broad range of legume species have been elucidated. Plant physiology approaches provided general outlines of plant responses, identifying stress tolerance-related traits or elite cultivars. A thorough identification of candidate genes and quantitative trait loci (QTLs) associated with these traits followed (Collins et al, 2008). The products of stress-inducible genes which could be directly protecting against these stresses includes transcription factors, protein kinases and enzymes involved in phosphoinositide metabolism (Knight and Knight, 2001). Crosstalk among various transduction pathways under abiotic stresses ABA biosynthesis suggested connection between cold, drought, salinity and ABA signal transduction pathways (Xiao et al, 2013). Targeted editing of the genomes of living organisms not only permits investigations into the understanding of the fundamental basis of biological systems but also allows addressing a wide range of goals towards improving productivity and quality of crops. These advances will support the development of legumes better adapted to environmental constraints, tackling current demands on modern agriculture and food production presently exacerbated by global climate changes. | International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 01 2019 Journal homepage http Review Article https Abiotic Stress Tolerance in Legumes - Critical Approaches Asmat Ara . Sofi . Rather Munezeh Rashid and Musharib Gull Division of Genetics and Plant Breeding Sher-e-Kashmir University of Agricultural Sciences Technology of Kashmir Wadura Sopore - 193201 India Corresponding author ABSTRACT Keywords Gene Enzyme Environment QTL Stress Article Info Accepted 14 December 2018 Available Online 10 January 2019 Legumes are well recognized for their nutritional and health benefits as well as for their impact in the sustainability of agricultural systems. The threatening scenario imposed by climate change highlights the need for concerted research approaches in order to develop crops that are able to cope with environmental stresses while increasing yield and quality. During the last decade some physiological components and molecular players underlying abiotic stress responses of a broad range of legume species have been elucidated. Plant physiology approaches provided general outlines of plant responses identifying stress tolerance-related traits or elite cultivars. A thorough identification of candidate genes and quantitative trait loci QTLs associated with these traits followed Collins et al 2008 . The products of stress-inducible genes which could be directly protecting against these stresses includes transcription factors protein kinases and enzymes involved in phosphoinositide metabolism Knight and Knight 2001 . Crosstalk among various transduction pathways under abiotic stresses ABA biosynthesis suggested connection between cold drought salinity and ABA signal transduction pathways Xiao et al 2013 . Targeted editing of the genomes of living organisms not only permits investigations into the understanding of the fundamental basis of biological systems but also allows

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