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Collaborative Research: Characterization of Pigments and Ultrastructure of Photosynthetic Ultraplankton in the North Atlantic and Pacific Oceans

合作研究：北大西洋和太平洋光合超浮游生物的色素和超微结构表征

基本信息

批准号：
9018298
负责人：
Robert Andersen
金额：
$ 14.63万
依托单位：
Bigelow Laboratory for Ocean Sciences
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1991
资助国家：
美国
起止时间：
1991-05-01 至 1994-10-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018298&HistoricalAwards=false
关键词：
Collaborative Research Characterization Pigments Ultrastructure

项目摘要

The photosynthetic ultraphytoplankton dominate ocean systems, both in terms of primary productivity and biomass, especially in stratified waters. However, the eukaryotic ultraplankton are only poorly known. This lack of basic information probably results from their small size, fragility, and resistance to culturing efforts. General studies of pigments in diverse oceanic systems reveal several abundant pigments which undoubtedly are from the eukaryotic ultraplankton and they undoubtedly will be of utility in classifying and identifying the taxa. However, there has been no systematic attempt to correlate these pigments with the taxa---a result of lack of species definition. It is unclear whether the few recorded instances are characteristic of the oligotrophic systems. The PIs propose to characterize oceanic ultraplankton populations through the seasons and at a variety of stations in the Atlantic and Pacific oceans. They will use ultrastructural analyses of cultured specimens to provide reference materials and correlate those morphological entities with their pigment- signatures. The resultant information will provide valuable information for studies on distribution, physiological ecology, and systematics of the oceanic ultraphytoplankton.

在初级生产力和生物量方面，光合作用的超浮游植物在海洋系统中占据主导地位，特别是在分层水域。然而，人们对真核超浮游生物知之甚少。缺乏基本信息可能是由于它们体型小、脆弱以及对培养努力的抵制所致。对不同海洋系统中色素的一般研究揭示了几种丰富的色素，这些色素无疑来自真核超浮游动物，它们无疑将有助于分类和鉴定类群。然而，没有系统的尝试将这些色素与分类群联系起来-这是由于缺乏物种定义的结果。目前还不清楚这几个记录的例子是否是寡营养系统的特征。PIS建议描述大西洋和太平洋不同季节和不同站点的海洋超级浮游生物种群的特征。他们将使用培养样本的超微结构分析来提供参考材料，并将这些形态实体与它们的色素特征相关联。这些信息将为海洋超浮游植物的分布、生理生态和系统学研究提供有价值的信息。