Membrane Traffic and Cell Division Research Group, Institut Pasteur, 28 rue du Dr. Roux, 75015 Paris, France.
Curr Opin Plant Biol. 2010 Dec;13(6):700-5. doi: 10.1016/j.pbi.2010.07.005. Epub 2010 Sep 6.
New findings reveal that proteins involved in cellulose biosynthesis undergo regulated trafficking between intracellular compartments and the plasma membrane. The coordinated secretion and internalization of these proteins involve both the actin and cortical microtubule cytoskeletons. This regulated trafficking allows the dynamic remodeling of cellulose synthase complex (CSC) secretion during cell expansion and differentiation. Several new actors of the cellulose synthesis machinery have been recently identified.
新发现揭示了参与纤维素生物合成的蛋白质在细胞内隔室和质膜之间进行受调控的运输。这些蛋白质的协调分泌和内化既涉及肌动蛋白又涉及皮质微管细胞骨架。这种受调控的运输允许在细胞扩展和分化过程中纤维素合酶复合物(CSC)分泌的动态重塑。最近已经鉴定出几个纤维素合成机制的新参与者。