Role and Regulation of Cytokinins in Plant Response to Drought Stress

Autor: Nguyen Ngoc Hai, Nguyen Nguyen Chuong, Nguyen Huu Cam Tu, Anna Kisiala, Xuan Lan Thi Hoang, Nguyen Phuong Thao
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Plants, Vol 9, Iss 4, p 422 (2020)
Druh dokumentu: article
ISSN: 2223-7747
DOI: 10.3390/plants9040422
Popis: Cytokinins (CKs) are key phytohormones that not only regulate plant growth and development but also mediate plant tolerance to drought stress. Recent advances in genome-wide association studies coupled with in planta characterization have opened new avenues to investigate the drought-responsive expression of CK metabolic and signaling genes, as well as their functions in plant adaptation to drought. Under water deficit, CK signaling has evolved as an inter-cellular communication network which is essential to crosstalk with other types of phytohormones and their regulating pathways in mediating plant stress response. In this review, we revise the current understanding of CK involvement in drought stress tolerance. Particularly, a genetic framework for CK signaling and CK crosstalk with abscisic acid (ABA) in the precise monitoring of drought responses is proposed. In addition, the potential of endogenous CK alteration in crops towards developing drought-tolerant crops is also discussed.
Databáze: Directory of Open Access Journals