Rice Papers

Curr Opin Plant Biol. 2009 Oct 20.

Receptor endocytosis and signaling in plants聽聽 [涓嬭浇]

缁嗚優鍐呭悶浣滅敤涓庝俊鍙蜂紶瀵肩殑缁艰堪銆傛彁鍒版鐗╂湁寰堝缁嗚優琛ㄩ潰鍙椾綋婵�閰�(RLKs)锛岀敱姝ゅ舰鎴愮殑缁嗚優浼犲淇″彿鐨勫鏉傞�斿緞锛屽崗璋冪敓鐗╀綋鐨勫垎鍖栫敓闀夸互鍙婃洿濂藉湴閫傚簲鐜銆�

The emerging complexity of plant endocytic systems puts it on a par with their animal counterparts, reflecting an essential role in signal transduction. The endocytic machinery regulates the space and the time of signal transduction and processing in the cell. Plants possess numerous cell surface receptor-like kinases (RLKs) (more than 600 members in Arabidopsis thaliana and 1100 in rice), a trend attributed to their indeterminate mode of growth, the absence of cell migration, and the need for adaptation towards the environment. Thus, plants would require a robust and highly plastic endocytic system in order to integrate multiple signaling cues from neighboring cells as well as the environment. Although a comprehensive understanding of how plant endocytosis impacts signaling pathways is still lacking, experimental evidence suggests that both plant and animal endosomal systems extensively control signaling.