Current Understanding of bHLH Transcription Factors in Plant Abiotic Stress Tolerance

Autor: Huanrong He, Jianrong Guo, Baoshan Wang, Yifan Zhang, Huaying Tian, Baixue Sun
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Molecular Sciences, Vol 22, Iss 4921, p 4921 (2021)
International Journal of Molecular Sciences
ISSN: 1422-0067
DOI: 10.3390/ijms22094921
Popis: Named for the characteristic basic helix-loop-helix (bHLH) region in their protein structure, bHLH proteins are a widespread transcription factor class in eukaryotes. bHLHs transcriptionally regulate their target genes by binding to specific positions on their promoters and thereby direct a variety of plant developmental and metabolic processes, such as photomorphogenesis, flowering induction, shade avoidance, and secondary metabolite biosynthesis, which are important for promoting plant tolerance or adaptation to adverse environments. In this review, we discuss the vital roles of bHLHs in plant responses to abiotic stresses, such as drought, salinity, cold, and iron deficiency. We suggest directions for future studies into the roles of bHLH genes in plant and discuss their potential applications in crop breeding.
Databáze: OpenAIRE