Changes in bacterial and eukaryotic community structure after mass lysis of filamentous cyanobacteria associated with viruses.

ABSTRACT: During an experiment in two laboratory-scale enclosures filled with lake water (130 liters each) we noticed the almost-complete lysis of the cyanobacterial population. Based on electron microscopic observations of viral particles inside cyanobacterial filaments and counts of virus-like particles, we concluded that a viral lysis of the filamentous cyanobacteria had taken place. Denaturing gradient gel electrophoresis (DGGE) of 16S ribosomal DNA fragments qualitatively monitored the removal of the cyanobacterial species from the community and the appearance of newly emerging bacterial species. The majority of these bacteria were related to the Cytophagales and actinomycetes, bacterial divisions known to contain species capable of degrading complex organic molecules. A few days after the cyan

SUBMITTER: van Hannen EJ 

PROVIDER: S-EPMC91097 | biostudies-literature | 1999 Feb

REPOSITORIES: biostudies-literature