Seasonal dynamics of bacterioplankton community structure in a eutrophic lake as determined by 5S rRNA analysis
Article Abstract:
Community structure of bacterioplankton was investigated during the major growth season for phytoplankton in the epilimnion of a temperate eutrophic lake by employing comparative 5S rRNA analysis. Overall, the whole bacterioplankton community showed two to eight abundant taxa. A rather-stable community structure, with seven to eight different taxonomic units, was seen beginning in April during the spring phytoplankton bloom. A strong reduction in this diversity occurred at the start of the clear-water phase, when only two to four abundant taxa were observed. During late summer, a dinoflagellate bloom occurred, with Comamonas acidovorans becoming the dominant bacterial species.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Bacterioplankton community structure and dynamics after large-scale release of nonindigenous bacteria as revealed by low-molecular-weight-RNA analysis
Article Abstract:
The effects of introducing nonindigenous bacteria and culture medium to the bacterioplankton community of a lake was studied using low-molecular-weight RNA analysis. The addition of Escherichia coli and Pseudomonas putida did not result in a significant alteration in the bacterioplankton community structure. However, the addition of culture media resulted in the upsurge of particular bacterial groups, like Aeromonas hydrophila and a Cytophaga johnsonae johnsonae-like bacterium. These results demonstrate that changes in nutrient supply are more likely to disrupt a natural population profile than the introduction of nonindigenous species of bacteria.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Flagellate predation on a bacterial model community: interplay of size-selective grazing, specific bacterial cell size, and bacterial community composition
Article Abstract:
Research concerning the influence of flagellate grazing on bacterial model communities in Ochromonas sp. strain DS is conducted. Experiments demonstrate that the size-selective grazing controls the morphological and taxonomic structures of the model community.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Composition and dynamics of bacterial communities of a drinking water supply system as assessed by RNA- and DNA-based 16S rRNA gene fingerprinting
- Abstracts: Purification of the bacteriocin bavaricin MN and characterization of its mode of action against Listeria monocytogenes Scott A cells and lipid vesicles
- Abstracts: Competition for ammonium between nitrifying and heterotrophic bacteria in continuously percolated soil columns
- Abstracts: Expression and transfer of engineered catabolic pathways harbored by Pseudomonas spp. introduced into activated sludge microcosms