The role of DMI1 in establishing Ca (2+) oscillations in legume symbioses.
The role of DMI1 in establishing Ca (2+) oscillations in legume symbioses.
复制标题
DOI：
10.4161/psb.22894
复制
发表时间：
2013-02
影响因子：
2.9
通讯作者：
Morris RJ
中科院分区：
文献类型：
--
作者：
Charpentier M;Vaz Martins T;Granqvist E;Oldroyd GE;Morris RJ
钙离子（Ca ~（2+））是许多植物信号转导途径中的重要第二信使。其中一个途径是SYM途径，它是豆科植物与丛枝菌根和根瘤菌根建立共生关系所必需的。当宿主植物感受到来自微生物共生体的可扩散信号时，最早的生理反应之一是细胞核内和周围的Ca 2+振荡。这些振荡对于激活下游基因表达至关重要，但编码和解码Ca 2+信号的精确机制尚不清楚，仍在深入研究中。在这里，我们提出了一个假设的阳离子通道DMI 1的机制。
Calcium (Ca2+) is a key secondary messenger in many plant signaling pathways. One such pathway is the SYM pathway, required in the establishment of both arbuscular mycorrhizal and rhizobial root symbioses with legume host plants. When the host plant has perceived the diffusible signals from the microbial symbionts, one of the earliest physiological responses are Ca2+ oscillations in and around the nucleus. These oscillations are essential for activating downstream gene expression, but the precise mechanisms of encoding and decoding the Ca2+ signals are unclear and still under intense investigation. Here we put forward a hypothesis for the mechanism of the cation channel DMI1.