Exchange of protein molecules through connections between higher plant plastids
Exchange of protein molecules through connections between higher plant plastids
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DOI：
10.1126/science.276.5321.2039
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发表时间：
1997-06-27
期刊：
影响因子：
56.9
通讯作者：
Hanson, MR
中科院分区：
文献类型：
--
作者：
Kohler, RH;Cao, J;Hanson, MR
维管植物的单个质体通常被认为是彼此不直接通信的独立自主实体。然而，在转基因植物中，质体基质标记有绿色荧光蛋白（GFP），细管状的突起从个别质体发出，有时连接到其他质体。当单个质体或相互连接的质体小管被光漂白时，可以观察到相互连接的质体之间的GFP流动，并且可以看到两个质体的绿色荧光的损失。这些小管允许质体间通讯系统内的分子交换，这可能有助于质体活动的协调。
Individual plastids of vascular plants have generally been considered to be discrete autonomous entities that do not directly communicate with each other. However, in transgenic plants in which the plastid stroma was labeled with green fluorescent protein (GFP), thin tubular projections emanated from individual plastids and sometimes connected to other plastids. Flow of GFP between interconnected plastids could be observed when a single plastid or an interconnecting plastid tubule was photobleached and the loss of green fluorescence by both plastids was seen. These tubules allow the exchange of molecules within an interplastid communication system, which may facilitate the coordination of plastid activities.