Picobiliphyta: an Algal group new to Science

Picobiliphyta：科学界的一个新藻类群

• 批准号: 30798386
• 负责人: Professor Dr. Michael Melkonian
• 金额: --
• 依托单位: Abteilung Pflanze-Mikroben Interaktionen
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/30798386?language=en
• 关键词: Picobiliphyta; Algal; group; new; Science

Marine and freshwater phytoplankton play pivotal roles in many biogeochemical processes that sustain the biosphere, and provide a variety of goods and services that are essential to mankind¿s existence, including food production, assimilation of waste and regulation of the climate. Water covers 70% of the Earth¿s surface and virtually all major ocean and seas are dominated numerically by microscopic protists and phototrophic prokaryotes. Each time that the biodiversity of these microscopic protists and prokaryotes has been investigated by molecular techniques, it has been found that we know approximately 10% of the biodiversity in the smallest size fractions. This project will attempt to recover the morphology of a new algal class discovered by environmental sequencing by using state of the art molecular probes coupled to fluorescence-activated cell sorting. Attempts will be made to bring the cells into culture, and investigate the ultrastructure and phylogenetic history of the new class. Environmental clone libraries enriched in their sequences from taxon-specific primers and microarrays will map the distribution in time and space of these organisms from the German Bight where they were first discovered.

海洋和淡水浮游植物在维持生物圈的许多生物地球化学过程中发挥着关键作用，并提供对人类生存至关重要的各种商品和服务，包括食物生产、废物同化和气候调节。水覆盖了地球表面的70%，几乎所有主要的海洋和海洋在数量上都由微型原生生物和光养原核生物主导。每次用分子技术研究这些微小原生生物和原核生物的生物多样性时，都会发现我们知道的生物多样性中约有10%是最小的部分。该项目将尝试通过使用最先进的分子探针与荧光激活的细胞分选相结合，恢复通过环境测序发现的一种新藻类的形态。将尝试将细胞带入培养，并调查新类群的超微结构和系统发育历史。环境克隆文库从分类群特异的引物和微阵列中丰富了它们的序列，将绘制出这些生物从它们第一次被发现的德国海湾开始在时间和空间上的分布。