Advances in the Research of R-SNARE in Plants
FENG Yaojie1,2, JIANG Su2*, LIU Zhendong2, ZHAO Shuju2, ZHANG Congcong2, LI Shipeng2
Membrane fusion is the key step of membrane trafficking in eukaryocyte, which is mediated by a family of proteins named SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor). SNARE proteins are classified into two groups, vesicle localized R-SNARE (v-SNARE) and target organelle localized QSNARE (t-SNARE). The specific pairing of R-SNARE with the cognate Q-SNARE forms the “SNARE complex”, and the complex resulted in the fusion of the vesicle membrane with the target membrane. In contrast to yeast and animal, plant R-SNARE genes had experienced copious duplications during evolution, which is assumed to cope with particular trafficking pathways evolved in plant cell. Here, the recent research on plant R-SNARE is reviewed, particularly regarding their involvement in development and stress responses. Based on their subcellular localizations in different cells, the target and regulatory characteristics of various R-SNARE were discussed. The prospects for future research on plant R-SNARE were also discussed.