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PLANT HORMONE-MEDIATED REGULATION OF STRESS RESPONSES IN FRUIT CROPS- A REVIEW
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  • Vinaykumar Rachappanavar,
  • Manish Kumar,
  • JK Sharma,
  • Himanshu Panday,
  • CL sharma
Vinaykumar Rachappanavar
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Manish Kumar
Dr Yashwant Singh Parmar University of Horticulture and Forestry
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JK Sharma
Baddi University of Emerging Sciences and Technology School of Pharmacy and Emerging Sciences
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Himanshu Panday
Dr Yashwant Singh Parmar University of Horticulture and Forestry
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CL sharma
Dr Yashwant Singh Parmar University of Horticulture and Forestry
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Abstract

One of the challenges facing fruit crop production globally is the regional climate regimes are becoming more unpredictable year after year leading to various type of stress. The exact impact of these stress on fruit crops is difficult to predict. Plant hormones can improve tolerance against abiotic stresses by inhibiting or reducing the active oxygen (AOS) accumulation, electrolyte leakage, induce the expression of stress-specific genes, etc. Among the major hormones produced by the plants, ABA, SA, JA and ET are known to play major roles in mediating plant defence response against various abiotic stresses. Crosstalk networks among phytohormones mediated by diverse key regulators have been extensively investigated and documented in various research investigations. Many canvassers’ recommended the use of phytohormones to counteract abiotic stress as increasing stress tolerance through conventional breeding methods requires longer time and also leads to inadequate adoptability of such cultivars under diverse cultivation environment for validation of performance and heritability. In this review, we summarize the roles of the major phytohormones present in fruit crops in regulating abiotic stresses responses with special focus on the significance of crosstalk between various hormones at biochemical and molecular level in generating a sophisticated and efficient stress response.