Coloniality, Carbon Allocation, and Inducible Defenses in a Modular Oraganism

模块化有机体中的殖民性、碳分配和诱导防御

• 批准号: 9408228
• 负责人: C. Drew Harvell
• 金额: $ 19.04万
• 依托单位: Cornell Univ - State: AWDS MADE PRIOR MAY 2010
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9408228&HistoricalAwards=false
• 关键词: Coloniality; Carbon; Allocation; Inducible; Defenses

9408228 Harvell Plants, and colonial animals such as corals and bryozoans, are termed modular organisms because they are constructed of iterated units. Although it is understood how materials are transported among the units of plants, this process is poorly known in colonial animals, where the transport moves resources among units that show division of labor between feeding, reproduction and defense. This study examines whether the amounts and rates at which materials are moved among the units constrain performance. In the marine bryozoan Membranipora membranacea, defensive units are induced by the proximity of predators and competitors. The construction of defensive units slows growth and this research will investigate whether construction of the defensive units also changes transport of a radioisotpoic marker in the colony. Although costs of defense are widely cited as a limitation on the types of defenses organisms deploy, in no organism has the mechanism underlying the cost been demonstrated. ***

小行星9408228 植物以及珊瑚和苔藓虫等群体动物被称为模块化生物，因为它们是由迭代单元构成的。尽管人们已经了解了物质是如何在植物单位之间运输的，但这一过程在殖民动物中却知之甚少，在殖民动物中，运输在单位之间移动资源，这些单位在进食，繁殖和防御之间表现出劳动分工。本研究探讨是否在单位之间移动的材料的数量和速度限制性能。在海洋苔藓动物Membraniporambranacea中，防御单位是由捕食者和竞争者的接近引起的。防御单位的构建减缓了生长，本研究将调查防御单位的构建是否也改变了殖民地中放射性同位素标记物的运输。虽然防御成本被广泛认为是生物体部署防御类型的限制，但没有任何生物体证明了成本背后的机制。 ***