The role of turgor in hyphal extension of the Ascomycete Neurospora crassa

膨压在子囊菌粗糙脉孢菌菌丝延伸中的作用

• 批准号: LX0561258
• 负责人: Prof Sergey Shabala
• 金额: $ 0.8万
• 依托单位: University of Tasmania
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-02-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0561258
• 关键词: role; turgor; hyphal; extension; Ascomycete

Cellular expansion is an absolute necessity during the growth and development of plants and fungi. This process relies heavily upon the accumulation of inorganic ions. Osmotically driven water influx then creates the hydrostatic pressure that underlies the increase in cell volume. Cellular expansion is normally asymmetric and localised in one small region, such as hyphal tip. How does the cell maintain the turgor that drives expansion? How is expansion controlled spatially? These questions will be addressed in this project by comprehensive study of ion transport processes in a model organism, Neurospora crassa, using osmotic sensitive and transport mutants.

在植物和真菌的生长发育过程中，细胞扩张是绝对必要的。这个过程在很大程度上依赖于无机离子的积累。渗透性驱动的水流入产生了静水压力，这是细胞体积增加的基础。细胞的扩张通常是不对称的，并局限于一个小区域，如菌丝尖端。细胞如何维持驱动扩张的膨胀？如何在空间上控制扩张？这些问题将在本项目中通过使用渗透敏感和转运突变体对模式生物粗神经孢子虫的离子转运过程进行综合研究来解决。