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奥斯迪斯莫1:一种用于在米芽中分散的新型输送器
Prashant Kandwal1, Toru Fujiwara1, Takehiro Kamiya2
1Laboratory of Plant Nutrition and Fertilizers, Department of Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan.
概括
研究人员在大米中发现了OsDISMO1,一种新的转运器. 这种基因对的分布至关重要,将必需的微量营养素从旧的植物组织转移到新的植物组织.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 营养物质运输 营养物质运输
背景情况:
- (Mo) 对植物生长至关重要,对酶功能至关重要.
- 此前在植物中只知道一种酸盐运输体 (MOT),其他Mo运输机制尚不清楚.
研究的目的:
- 在大米中识别新的转运基因.
- 描述一个新发现的Mo传送器,OsDISMO1.1,的功能和定位.
主要方法:
- 在大米中高Mo谷物突变的基因映射.
- 对淘汰突变物体的表型分析.
- 在不同叶子组织中分析Mo度.
- 促进者-GUS和GFP-融合蛋白位址研究.
- 在酵母 (Saccharomyces cerevisiae) 中异质表达.
主要成果:
- 在大米中发现了一种新的Mo转运基因,OsDISMO1.
- OsDISMO1是高Mo谷物突变现型的原因.
- OsDISMO1促进了Mo的移动,在突变的幼和旗叶中发生了变化的分布.
- 表达式分析显示,OsDISMO1局部存在于血管捆绑中,特别是浮膜.
- 蛋白质定位证实了奥斯迪斯莫1在内分泌网膜膜中的存在.
结论:
- OsDISMO1 作为大米中的转运器.
- 这种载体在植物内的分布中起着关键作用.
- OsDISMO1促进Mo从来源到沉组织的运动.
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