Cytokinin-auxin crosstalk

被引：265
作者：
Moubayidin, Laila [1 ]
Di Mambro, Riccardo [1 ]
Sabatini, Sabrina [1 ]
机构：
[1] Univ Roma La Sapienza, Dipartimento Genet & Biol Mol, Lab Funct Genom & Prote Model Syst, I-00185 Rome, Italy
来源：
TRENDS IN PLANT SCIENCE | 2009年 / 14卷 / 10期
关键词：
YUCCA FLAVIN MONOOXYGENASES; SHOOT APICAL MERISTEM; BOX PROTEIN TIR1; PLANT DEVELOPMENT; ROOT-MERISTEM; ARABIDOPSIS-THALIANA; RESPONSE REGULATORS; SIGNAL-TRANSDUCTION; CELL-DIVISION; BIOSYNTHESIS;
D O I：
10.1016/j.tplants.2009.06.010
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Post-embryonic plant growth and development are sustained by meristems, a source of undifferentiated cells that give rise to the adult plant structures. Two hormones, cytokinin and auxin, are known to act antagonistically in controlling meristem activities. Here, we review recent significant progress in elucidating the molecular mechanisms through which these hormones interact to control specific aspects of plant development. For example, in the root meristem of Arabidopsis thaliana, cytokinin promotes cell differentiation by repressing both auxin signalling and transport, whereas auxin sustains root meristem activity by promoting cell division. The coordinated action of these two hormones is essential for maintaining root meristem size and for ensuring root growth.
引用
收藏
页码：557 / 562
页数：6
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