Classification of the Genes Involved in the Two-Component System of the Moss Physcomitrella patens
Classification of the Genes Involved in the Two-Component System of the Moss Physcomitrella patens
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DOI：
10.1271/bbb.100623
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发表时间：
2010-12-01
影响因子：
1.6
通讯作者：
Mizuno, Takeshi
中科院分区：
文献类型：
--
作者：
Ishida, Kai;Yamashino, Takafumi;Mizuno, Takeshi
小立碗藓属于苔藓植物纲，是陆生植物的一个基底类群。为了深入了解从原核生物到真核生物广泛保守的双组分系统（TCS）的多样性，我们利用P. patens基因组数据库编译了TCS相关基因。苔藓有一组His激酶（HK），包括种子植物中细胞分裂素和乙烯受体的同源物。此外，它具有指定唯一HK的许多编码序列。我们发现的证据表明，一个假定的细胞分裂素受体HK在P. patans作为这种激素的传感器，和一个假定的乙烯受体同源物的HK活性调节乙烯，观察拟南芥。
Physcomitrella patens, belonging to bryopsida, is a basal lineage of land plants. To gain insight into the diversification of the two-component system (TCS), which is widely conserved from prokaryotes to eukaryotes, we compiled TCS-associated genes by employing P. patens genome databases. The moss has a set of His-kinases (HKs), including homologs of the cytokinin- and ethylene-receptors in seed plants. In addition, it has a number of coding-sequences specifying unique HKs. We found evidence that a putative cytokinin-receptor HK in P. patans serves as a sensor for this hormone, and that the HK activity of a putative ethylene-receptor homolog is regulated by ethylene, as observed for Arabidopsis thaliana.