title: Abscisic Acid Signaling and Abiotic Stress Tolerance in Plants: A Review on Current Knowledge and Future Prospects.
abstract: Abiotic stress is one of the severe stresses of environment that lowers the growth and yield of any crop even on irrigated land throughout the world. A major phytohormone abscisic acid (ABA) plays an essential part in acting toward varied range of stresses like heavy metal stress, drought, thermal or heat stress, high level of salinity, low temperature, and radiation stress. Its role is also elaborated in various developmental processes including seed germination, seed dormancy, and closure of stomata. ABA acts by modifying the expression level of gene and subsequent analysis ofcis- andtrans-acting regulatory elements of responsive promoters. It also interacts with the signaling molecules of processes involved in stress response and development of seeds. On the whole, the stress to a plant can be susceptible or tolerant by taking into account the coordinated activities of various stress-responsive genes. Numbers of transcription factor are involved in regulating the expression of ABA responsive genes by acting together with their respectivecis-acting elements. Hence, for improvement in stress-tolerance capacity of plants, it is necessary to understand the mechanism behind it. On this ground, this article enlightens the importance and role of ABA signaling with regard to various stresses as well as regulation of ABA biosynthetic pathway along with the transcription factors for stress tolerance.
authors.affiliation: Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, India.
authors.forename: Kanchan
authors.initials: K
authors.lastname: Vishwakarma
authors.affiliation: Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, India.
authors.forename: Neha
authors.initials: N
authors.lastname: Upadhyay
authors.affiliation: Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, India.
authors.forename: Nitin
authors.initials: N
authors.lastname: Kumar
authors.affiliation: Department of Biotechnology, Motilal Nehru National Institute of TechnologyAllahabad, India; Centre for Medical Diagnostic and Research, Motilal Nehru National Institute of TechnologyAllahabad, India.
authors.forename: Gaurav
authors.initials: G
authors.lastname: Yadav
authors.affiliation: Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, India.
authors.forename: Jaspreet
authors.initials: J
authors.lastname: Singh
authors.affiliation: Centre for Medical Diagnostic and Research, Motilal Nehru National Institute of Technology Allahabad, India.
authors.forename: Rohit K
authors.initials: RK
authors.lastname: Mishra
authors.affiliation: Amity Institute of Microbial Technology, Amity University Noida, India.
authors.forename: Vivek
authors.initials: V
authors.lastname: Kumar
authors.affiliation: Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, India.
authors.forename: Rishi
authors.initials: R
authors.lastname: Verma
authors.affiliation: V.C.S.G Uttarakhand University of Horticulture and Forestry Ranichauri, India.
authors.forename: R G
authors.initials: RG
authors.lastname: Upadhyay
authors.affiliation: Department of computer Science and Engineering, Motilal Nehru National Institute of Technology Allahabad, India.
authors.forename: Mayank
authors.initials: M
authors.lastname: Pandey
authors.affiliation: Department of Biotechnology, Motilal Nehru National Institute of TechnologyAllahabad, India; Centre for Medical Diagnostic and Research, Motilal Nehru National Institute of TechnologyAllahabad, India.
authors.forename: Shivesh
authors.initials: S
authors.lastname: Sharma
keywords: abiotic stress; abscisic acid; drought; phytohormone; radiation