Structural and Functional Adaptations in Salinity Stress in a Chemosensory System

化学感应系统中盐度胁迫的结构和功能适应

• 批准号: 9121568
• 负责人: Richard Gleeson
• 金额: $ 23.2万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-04-15 至 1996-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9121568&HistoricalAwards=false
• 关键词: Structural; Functional; Adaptations; Salinity; Stress

A multidisciplinary approach is used to document the effects of variations in salinity on the structure and function of a chemosensory system in the blue crab, a species that ranges from seawater to freshwater. Experiments focus upon the olfactory sensory cells of the crab, using animals acclimated to a range of different external salt concentrations. Using electron microscopy, the structural details of the sensory cells will be examined to discover the features that may be transformed in altered salinity conditions. The composition of the fluid, which bathes the input processes of sensory neurons, is also monitored in relation to salinity and its relationship to the hemolymph ("blood") and the external environment of the crab. Neurophysiological techniques are used to define how the responses of chemically sensitive neurons are affected by altered salinity, as well. By integrating these approaches, we expect that this study will contribute to our understanding of structural and functional adaptations that can maintain chemosensory function under conditions of osmotic and ionic stress to the animal.

一个多学科的方法是用来记录的影响， 盐度变化对藻类结构和功能的影响 蓝蟹的化学感受系统，一个物种， 海水变成淡水 实验聚焦于嗅觉 感觉细胞的螃蟹，使用动物适应了一系列的 不同的盐浓度。 使用电子 在显微镜下，感觉细胞的结构细节将被 研究发现的特点，可以转化为 改变盐度条件 流体的成分， 也被监控着， 与盐度及其与血淋巴的关系 （“血液”）和螃蟹的外部环境。 神经生理学技术被用来定义 化学敏感神经元的反应受到改变的 盐，也是。 通过整合这些方法，我们希望 这项研究将有助于我们理解 结构和功能上的适应， 在渗透和离子条件下的化学感觉功能 给动物的压力。