Distribution of aerobic anoxygenic phototrophic bacteria in glacial lakes of northern Europe

Aquatic Microbial Ecology

Hans-Peter Grossart¹  Michal Koblížek¹  Zuzana Čuperová¹  Eva Hojerová¹  Michal Mašín¹  Ivette Salka¹ 

关键词: Lakes;    Aerobic photosynthetic bacteria;    AAP bacteria;    Bacteriochlorophyll a;    Photoheterotrophy;   

DOI  :  10.3354/ame01558

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Glacial lakes cover large areas of northern Europe and North America. These freshwater systems represent important habitats accommodating diverse microbial communities. Here, 27 lakes in northern Germany, Poland and Finland were surveyed for the presence of aerobic anoxygenic phototrophic (AAP) bacteria during the summer seasons of 2008 and 2009. Using infrared epifluorescence microscopy, AAP bacteria were found to represent from 2 to 12% of total bacteria in surface layers of the studied lakes. The AAP abundance was correlated with total bacterial numbers, total phosphorus and chlorophyll concentration. The size fractionation analyses indicated that a significant portion of AAP cells was attached to particles. Our findings suggest that AAP bacteria represent a significant component of the microbial community in the studied lakes.

【 授权许可】

Unknown