拟南芥 SMO2 调节种子萌发和 ABA 反应。
Arabidopsis SMO2 regulates seed germination and ABA response.
机构信息
Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China.
出版信息
Plant Signal Behav. 2010 Mar;5(3):325-7. doi: 10.4161/psb.5.3.11189. Epub 2010 Mar 11.
Arabidopsis SMALL ORGAN2 (SMO2) encodes a functional homologue of yeast TRM112, and disruption of SMO2 results in a defect in progression of cell division and organ growth. Here, we show that SMO2 mediates the abscisic acid (ABA) response during seed germination. smo2 exhibits an obvious delay of seed germination and is hypersensitive to abscisic acid (ABA), while transgenic seeds overexpressing SMO2 are hyposensitive to ABA. Given that SMO2 is required for proper cell division in root apex, our observation suggests that SMO2-regulated progression of cell division is involved in ABA response during seed germination.
拟南芥 SMALL ORGAN2 (SMO2) 编码一个功能同源物的酵母 TRM112，和破坏 SMO2 导致在细胞分裂和器官生长的进展缺陷。在这里，我们表明 SMO2 介导脱落酸（ABA）反应在种子萌发过程中。smo2 表现出明显的延迟种子萌发和对脱落酸（ABA），而转基因种子过表达 SMO2 是对 ABA 敏感。鉴于 SMO2 是在根尖适当的细胞分裂所必需的，我们的观察表明 SMO2 调控细胞分裂的进展参与种子萌发过程中的 ABA 反应。
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