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. 1979 Sep;38(3):499-505.
doi: 10.1128/aem.38.3.499-505.1979.

Lytic organisms and photooxidative effects: influence on blue-green algae (cyanobacteria) in lake mendota, wisconsin

R D Fallon  1 , T D Brock
Affiliations

Lytic organisms and photooxidative effects: influence on blue-green algae (cyanobacteria) in lake mendota, wisconsin

R D Fallon et al. Appl Environ Microbiol. 1979 Sep.

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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References

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