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- Title
Engineering the Transcriptional Regulatory Network to Improve Abiotic Stress Tolerance in Crop Plants: Taming the Tough Time.
- Authors
Kajal; Ojha, Rabishankar; Lohani, Pushpa; Deshmukh, Rupesh; Salvi, Prafull
- Abstract
Plant growth and productivity are severely curtailed by various environmental perturbations, including extreme temperature, water deficit, flooding, salinity, and nutrient scarcity. These stresses alter the activity of biomolecules and affect biological and cellular functionality. Plants possess an intrinsic mechanism to tackle such a stressful milieu, which is primarily facilitated by the alteration of gene expression. Being a key regulator of gene expression, transcription factors play a crucial role in orchestrating the adequate functioning of diverse metabolic processes through gene regulation. Transcription factor binds to the cis-regulatory elements present in the promoter region of their target gene and modulates its expression profile. Identifying the candidate transcription factors and targeting them for engineering the abiotic stress tolerance response in crop plants is crucial for improving tolerance response. Therefore, here we discussed the regulatory role of transcription factors like APETALA2 and Ethylene responsive factor (AP2/ERF), Basic leucine zipper (b-ZIP), myeloblastosis (Myb), WRKY DNA-binding protein (WRKY), and DNA-binding One Zinc Finger protein (DoF) under abiotic stress. The molecular role of these transcription factors in abiotic stress and strategies to engineer them is highlighted. Further, the advancement in breeding strategies and potential aspects of genome editing for crop improvement is also discussed. Besides, we also discussed the challenges and prospecting approaches to engineering transcription factors in crop plants. Overall, this review emphasizes the molecular action and regulatory facets of transcription factors and the recent advancement in molecular breeding and genome editing to mitigate climate adversities.
- Subjects
ZINC-finger proteins; GENE regulatory networks; ABIOTIC stress; CROPS; LEUCINE zippers; DNA-binding proteins
- Publication
Journal of Plant Growth Regulation, 2024, Vol 43, Issue 1, p25
- ISSN
0721-7595
- Publication type
Article
- DOI
10.1007/s00344-023-11057-1