CYTOKININ SIGNALING DURING ROOT DEVELOPMENT

被引:30
作者
Bishopp, Anthony [1 ]
Help, Hanna [1 ]
Helariutta, Yka [1 ,2 ]
机构
[1] Univ Helsinki, Inst Biotechnol, Plant Mol Biol Lab, FIN-00014 Helsinki, Finland
[2] Swedish Univ Agr Sci, Umea Plant Sci Ctr, Dept Forest Genet & Plant Physiol, SE-90183 Umea, Sweden
来源
INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY, VOL 276 | 2009年 / 276卷
关键词
Plant hormone; Root meristem; Root architecture; Hormone interactions; Arabidopsis; TO-ASP PHOSPHORELAY; B RESPONSE REGULATORS; AHK4 HISTIDINE KINASE; ARABIDOPSIS-THALIANA; DNA-BINDING; TRANSCRIPTION FACTORS; LIGAND-BINDING; CELL-DIVISION; GENOME-WIDE; MOLECULAR CHARACTERIZATION;
D O I
10.1016/S1937-6448(09)76001-0
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The cytokinin class of phytohormones regulates division and differentiation of plant cells. They are perceived and signaled by a phosphorelay mechanism similar to those observed in prokaryotes. Research into the components of phosphorelay had previously been marred by genetic redundancy. However, recent studies have addressed this with the creation of high-order mutants. In addition, several new elements regulating cytokinin signaling have been identified. This has uncovered many roles in diverse developmental and physiological processes. In this review, we look at these processes specifically in the context of root development. We focus on the formation and maintenance of the root apical meristem, primary and secondary vascular development, lateral root emergence and development, and root nodulation. We believe that the root is an ideal organ with which to investigate cytokinin signaling in a wider context.
引用
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页码:1 / +
页数:50
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