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首页> 外文期刊>Doklady Biological Sciences >Species Composition of Winter Bacterioplanktonin Blooming and Nonblooming Reservoirsas Determined by 16S rRNA Sequences
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Species Composition of Winter Bacterioplanktonin Blooming and Nonblooming Reservoirsas Determined by 16S rRNA Sequences

机译：16S rRNA序列确定的冬季浮游植物浮游和非浮游植物的物种组成

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摘要

Reducers, represented mostly by bacterioplankton in aquatic pelagic ecosystems, are an indispensable link of all ecosystems, However, no more than 1-3% of plankton bacteria grow on solid selective media and can be directly counted; therefore, the bacterioplankton species composition has remained unknown until recently [1]. A new molecular genetic approach developed in the past decade makes it possible to determine bacterial species from the nucleotide sequences of rRNA gene and, hence, describe the bacterial link of aquatic ecosystems more comprehensivelyIn this study, we compared the seasonal dynamics of the species composition of free-living bacterioplankton in two small recreational reservoirs located 6 km away from each other in the vicinity of Krasnoyarsk. One of these water bodies, Bugach, was blooming with cyano-bacteria in July and August; the other, Lesnoye, was not blooming. These reservoirs are described elsewhere [2, 3] in detail.
机译：还原剂是水生中上层生态系统中以浮游细菌为主要代表的还原剂，是所有生态系统中必不可少的环节。然而，浮游生物中只有不超过1-3％的细菌在固体选择性培养基上生长，可以直接计数。因此，直到最近，浮游细菌的种类组成仍是未知的[1]。过去十年中开发出的一种新的分子遗传学方法使从rRNA基因的核苷酸序列确定细菌物种成为可能，从而更全面地描述了水生生态系统的细菌联系。位于克拉斯诺亚尔斯克附近彼此相距6公里的两个小型休闲水库中的自由生活浮游细菌。其中的一个水体Bugach在7月和8月盛开了蓝细菌。另一个莱斯诺耶（Lesnoye）没有开花。这些储层在其他地方[2，3]有详细描述。

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