Stomatal patterning and differentiation by synergistic interactions of receptor kinases
Stomatal patterning and differentiation by synergistic interactions of receptor kinases
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DOI：
10.1126/science.1109710
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发表时间：
2005-07-08
期刊：
影响因子：
56.9
通讯作者：
Torii, KU
中科院分区：
文献类型：
--
作者：
Shpak, ED;McAbee, JM;Torii, KU
气孔的协调间隔和图案允许植物和大气之间的有效气体交换。在这里，我们报告三个ERECTA（ER）家族富含亮氨酸的重复受体样激酶（LRR-RLK）一起控制气孔图案，与特定的家庭成员调节气孔干细胞的命运和分化的分化的规范。所有三个ER家族基因的功能丧失突变导致气孔聚集。与已知气孔突变体太多嘴（tmm）的遗传相互作用揭示了化学计量上位性和组合特异性新形态。我们的研究结果表明，ER家族RLKs的负调控TMM，这是一个LRR受体样蛋白，是至关重要的适当的气孔分化。
Coordinated spacing and patterning of stomata allow efficient gas exchange between plants and the atmosphere. Here we report that three ERECTA (ER)family leucine-rich repeat-receptor-like kinases (LRR-RLKs) together control stomatal patterning, with specific family members regulating the specification of stomatal stem cell fate and the differentiation of guard cells. Loss-of-function mutations in all three ER-family genes cause stomatal clustering. Genetic interactions with a known stomata[ patterning mutant too many mouths (tmm) revealed stoichiometric epistasis and combination-specific neomorphism. Our findings suggest that the negative regulation of ER-family RLKs by TMM, which is an LRR receptor-like protein, is critical for proper stomatal differentiation.