CAA: Microbial Phylogenetic Structure and Diversity in the Unique Fermenting Crop of the Hoatzin (Opisthocomus Hoazin)

CAA：麝雉（Opisthocomus Hoazin）独特发酵作物的微生物系统发育结构和多样性

• 批准号: 0716911
• 负责人: Maria Dominguez-Bello
• 金额: --
• 依托单位: University of Puerto Rico-Rio Piedras
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0716911&HistoricalAwards=false
• 关键词: CAA; Microbial; Phylogenetic; Structure; Diversity

The world has been predominantly microbial since the beginning of life, and microbes have shaped the evolution of all animals. The gut is a good example of a microbial organ. It needs microbes for its natural function. The main interest of this investigation is to understand the role of microbial diversity in the gut. This project uses as a model a very special animal, the herbivorous crop-fermenting hoatzin. This bird is the only known case with fermentative digestion in the crop, analogous to the rumen of cattle. The expanding genomic resources -survey of 16SrRNA genes and DGGE- will be used to characterize the crop bacterial community and its pattern of development. A determination will be made of how the chicks increase the diversity of their bacterial communities as they grow, following a succession of microbes, in which early microbial colonizers facilitate the colonization of newer species. A high proportion of the adult crop microbial diversity will be characterized.The work described in this proposal will add a microbial component to our understanding of the evolution of fermentative digestion, relevant to the colon of all mammals. The project will consolidate collaborations between University of Puerto Rico, mainland US Institutions, and South American researchers, bringing a unique opportunity to expose students to tropical biodiversity and expand their research experience. Information on such an unusual bird can be expected to receive attention in the lay press as well as the scientific literature.The hoatzin is a great reference in education on alimentary ecology, microbial community structure, ornithology and conservation biology.

自从生命开始以来，世界主要是微生物，微生物塑造了所有动物的进化。肠道是微生物器官的一个很好的例子。它需要微生物来维持其自然功能。这项研究的主要目的是了解肠道微生物多样性的作用。这个项目使用了一种非常特殊的动物作为模型，草食性作物发酵hotzin。这种鸟是唯一已知的在作物中具有发酵消化的情况，类似于牛的瘤胃。扩大基因组资源-调查16 SrRNA基因和DGGE-将用于表征作物细菌群落及其发展模式。将确定小鸡如何增加他们的细菌群落的多样性，因为他们的成长，以下的微生物，其中早期的微生物殖民者促进新物种的殖民。成年作物微生物多样性的高比例将被表征。本提案中描述的工作将为我们对发酵消化进化的理解增加一个微生物组成部分，与所有哺乳动物的结肠有关。该项目将巩固波多黎各大学，美国大陆机构和南美研究人员之间的合作，为学生提供一个独特的机会，让他们接触热带生物多样性并扩大他们的研究经验。关于这种不寻常的鸟的信息可以预期会在普通媒体和科学文献中受到关注。在食物生态学、微生物群落结构、鸟类学和保护生物学的教育中，这只鸟是一个很好的参考。