Diversity and distribution of photosynthetic bacteria in the Black Sea

被引：30

作者：

Koblizek, Michal ^{[1
]}

Falkowski, Paul G. ^{[1
]}

Kolber, Zbigniew S. ^{[1
]}

机构：

[1] Rutgers State Univ, Inst Marine & Coastal Sci, New Brunswick, NJ 08901 USA

来源：

DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY | 2006年 / 53卷 / 17-19期

基金：

美国国家科学基金会;

关键词：

aerobic anoxygenic phototrophs; Erythrobacter; Roseobacter; Chlorobium; bacteriochlorophyll; green sulfur photosynthetic bacteria;

D O I：

10.1016/j.dsr2.2006.03.019

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

Using an infrared fast-repetition-rate (IRFRR) fluorometer, we measured bacteriochlorophyll a (1301 a) fluorescence kinetics to examine the spatial pattern of the distribution of aerobic and anaerobic photosynthetic bacteria in the Black Sea in June 2001. Aerobic photosynthetic bacteria containing BChl a were distributed together with chlorophyll-containing phytoplankton in the upper, aerobic portion of the water column, confirming their exclusive requirement for oxygen. The BCH a to chlorophyll a ratio averaged 10(-2) within the euphotic zone. Seven strains of aerobic photosynthetic bacteria were isolated and partially characterized. They belong to two subgroups closely related to Erythrobacter and Roseobacter genera. Green sulfur photosynthetic bacteria were detected in the central part of the basin, at the boundary between suboxic and anoxic (hydrogen sulfide) zone. However, the population of green sulfur bacteria was extremely small, and confined to a very narrow density layer deep in the water column. Published by Elsevier Ltd.

引用

页码：1934 / 1944

页数：11

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