Abstract
The effects of exposure to high light intensities on blue-green algal (cyanobacterial) populations were examined in Lake Mendota, Wis. The algal populations were shown to be susceptible to inhibition of photosynthetic activity and pigment bleaching as a result of exposure. These effects generally influence only a small percentage of the lake population and thus are probably not important in causing major declines in chlorophyll a. Lytic organisms were shown to increase in numbers in the lake in response to the seasonal development of blue-green algae, reaching values of greater than 1,000 plaque-forming units per ml in midsummer. Both bacteria and protozoa were observed in plaque zones, but it could not be determined whether these lytic organisms had a major role in algal biomass declines.
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Selected References
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- Abeliovich A., Shilo M. Photooxidative death in blue-green algae. J Bacteriol. 1972 Sep;111(3):682–689. doi: 10.1128/jb.111.3.682-689.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Eloff J. N., Steinitz Y., Shilo M. Photooxidation of cyanobacteria in natural conditions. Appl Environ Microbiol. 1976 Jan;31(1):119–126. doi: 10.1128/aem.31.1.119-126.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Padan E., Shilo M. Cyanophages-viruses attacking blue-green algae. Bacteriol Rev. 1973 Sep;37(3):343–370. doi: 10.1128/br.37.3.343-370.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Redhead K., Wright S. J. Isolation and properties of fungi that lyse blue-green algae. Appl Environ Microbiol. 1978 May;35(5):962–969. doi: 10.1128/aem.35.5.962-969.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]