An Electrochemical Approach to Understanding Coral Bleaching

了解珊瑚白化的电化学方法

• 批准号: 2894423
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2894423
• 关键词: Electrochemical; Approach; Understanding; Coral; Bleaching

Coral bleaching is a growing catastrophe resulting from climate change. Coral animals rely on symbiosis with intracellular dinoflagellate algae. The dinoflagellates provide the host with photosynthetically fixed carbon, and receive other nutrients and physical protection in return. This symbiosis breaks down under some conditions, including raised temperatures, resulting in expulsion of the dinoflagellates and bleaching. All photosynthetic microorganisms exhibit exoelectrogenesis, where electrons from photosynthesis are exported extracellularly. The project will develop electrochemical approaches for measuring exoelectrogenesis by the dinoflagellate Symbiodinium, the genus whose members form symbiosis with corals. It will study how external stresses may disturb photosynthesis, affecting redox signalling via exoelectrogenesis. Several mutant cell lines are available in which photosynthesis has been directly compromised; these will be included in the study. Overall, the project will provide direct indications of how disturbance of photosynthesis affects the redox exchange between dinoflagellates and their hosts.

珊瑚漂白是由于气候变化而导致的灾难。珊瑚动物依赖于细胞内鞭毛藻藻类的共生。鞭毛鞭毛盐为宿主提供光合固定的碳，并获得其他营养和物理保护。这种共生在某些条件下（包括温度升高）破裂，导致鞭毛藻和漂白剂的驱逐。所有光合微生物均表现出外核发生，其中来自光合作用的电子被细胞外出口。该项目将开发用于测量鞭毛藻共生菌的外源性的电化学方法，鞭毛藻共生菌的成员与珊瑚形成共生属。它将研究外部应力如何干扰光合作用，从而通过外发作用影响氧化还原信号传导。有几种突变细胞系，其中光合作用已直接损害。这些将包括在研究中。总体而言，该项目将直接迹象表明光合作用的干扰如何影响鞭毛鞭毛盐及其宿主之间的氧化还原交换。