Seasonal changes and diversity of aerobic anoxygenic phototrophs in the Baltic Sea

Masín, M., Zdun, A., Stón-Egiert, J., Nausch, M., Labrenz, M., Moulisová, V. and Koblízek, M. (2006) Seasonal changes and diversity of aerobic anoxygenic phototrophs in the Baltic Sea. Aquatic Microbial Ecology, 45, pp. 247-254. (doi: 10.3354/ame045247)

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Abstract

The community of aerobic anoxygenic phototrophs was investigated in the Baltic Sea using infrared epifluorescence microscopy from September 2004 to October 2005. The majority of these bacteriochlorophyll-containing organisms exhibited a specific sickle-shaped morphology, with rods or other morphotypes observed only occasionally. Aerobic anoxygenic phototrophs were observed mostly from April to September (1 to 12% of total prokaryotes), peaking in May 2005 at a concentration of up to 0.38 × 106 cells ml–1. This peak was associated with the later phase of the spring bloom. In the later months, the amount of phototrophic bacteria gradually declined until the beginning of the fall mixing, and remained low from November to March, contributing only 0 to 2% of total prokaryotes. A novel technique combining fluorescent in situ hybridization (FISH) and infrared epifluorescence microscopy indicated that the Baltic aerobic anoxygenic phototrophs were mostly Gammaproteobacteria, with a smaller fraction of Alphaproteobacteria.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Moulisova, Dr Vladimira
Authors: Masín, M., Zdun, A., Stón-Egiert, J., Nausch, M., Labrenz, M., Moulisová, V., and Koblízek, M.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Aquatic Microbial Ecology
Publisher:Inter Research
ISSN:0948-3055
ISSN (Online):1616-1564

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