Lesage Guillaume, Bussey Howard
Department of Biology, McGill University, Montreal, PQ H3A 1B1, Canada.
Microbiol Mol Biol Rev. 2006 Jun;70(2):317-43. doi: 10.1128/MMBR.00038-05.
An extracellular matrix composed of a layered meshwork of beta-glucans, chitin, and mannoproteins encapsulates cells of the yeast Saccharomyces cerevisiae. This organelle determines cellular morphology and plays a critical role in maintaining cell integrity during cell growth and division, under stress conditions, upon cell fusion in mating, and in the durable ascospore cell wall. Here we assess recent progress in understanding the molecular biology and biochemistry of cell wall synthesis and its remodeling in S. cerevisiae. We then review the regulatory dynamics of cell wall assembly, an area where functional genomics offers new insights into the integration of cell wall growth and morphogenesis with a polarized secretory system that is under cell cycle and cell type program controls.
由β-葡聚糖、几丁质和甘露糖蛋白组成的分层网状细胞外基质包裹着酿酒酵母的细胞。这个细胞器决定细胞形态,并在细胞生长和分裂、应激条件下、交配时细胞融合以及持久的子囊孢子细胞壁形成过程中维持细胞完整性方面发挥关键作用。在这里,我们评估了酿酒酵母细胞壁合成及其重塑的分子生物学和生物化学方面的最新进展。然后,我们回顾了细胞壁组装的调控动态,在这个领域,功能基因组学为细胞壁生长和形态发生与受细胞周期和细胞类型程序控制的极化分泌系统的整合提供了新的见解。