Cytokinins: metabolism and function in plant adaptation to environmental stresses

被引:393
作者
Ha, Sukbong [2 ]
Vankova, Radomira [3 ]
Yamaguchi-Shinozaki, Kazuko [4 ]
Shinozaki, Kazuo [5 ]
Lam-Son Phan Tran [1 ]
机构
[1] RIKEN, Yokohama Inst, Plant Sci Ctr, Signaling Pathway Res Unit, Yokohama, Kanagawa 2300045, Japan
[2] Chonnam Natl Univ, Dept Plant Biotechnol, Kwangju 500757, South Korea
[3] Acad Sci Czech Republ, Inst Expt Bot, Lab Hormonal Regulat Plants, CZ-16502 Prague, Czech Republic
[4] Japan Int Ctr Agr Sci, Ibaraki 3058686, Japan
[5] RIKEN, Yokohama Inst, Plant Sci Ctr, Gene Discovery Res Grp, Yokohama, Kanagawa 2300045, Japan
关键词
B RESPONSE REGULATORS; LIGAND-BINDING PROPERTIES; ZEATIN-TYPE CYTOKININS; ABSCISIC-ACID; HISTIDINE KINASE; ARABIDOPSIS-THALIANA; ROOT-GROWTH; SIGNAL-TRANSDUCTION; DROUGHT TOLERANCE; LEAF SENESCENCE;
D O I
10.1016/j.tplants.2011.12.005
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In plants, the cytokinin (CK) phytohormones regulate numerous biological processes, including responses to environmental stresses, via a complex network of CK signaling. By an unknown mechanism, stress signals are perceived and transmitted through the His Asp phosphorelay, an important component of the CK signal transduction pathway, triggering CK-responsive genes. Because of the intensive crosstalk between CKs and abscisic acid (ABA), modulation of CK levels and their signal transduction affects both ABA-dependent and ABA-independent pathways, enabling plant adaptation to adverse conditions. This review presents our current understanding of the functions of CKs and CK signaling in the regulation of plant adaptation to stress. Biotechnological strategies based on the modulation of CK levels have been examined with the aim of stabilizing agriculture yields.
引用
收藏
页码:172 / 179
页数:8
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