Journal
MICROBIAL ECOLOGY
Volume 63, Issue 1, Pages 199-209Publisher
SPRINGER
DOI: 10.1007/s00248-011-9899-3
Keywords
-
Categories
Ask authors/readers for more resources
Microcystis aeruginosa isolated in 2005 from the shallow eutrophic Lake Chao (Anhui, China) was investigated in terms of growth parameters and microcystin production under varying nutrient concentrations (P, N) and pH values (abiotic factors) as well as under the influence of spent medium of the non-toxic cyanobacterium Synechocystis sp. (biotic factors). Stimulating effects on growth were observed at the alkaline pH value (10.5), whereas toxin production was significantly increased under phosphate-P limitation (0.6 mg L-1 medium). Within a broad range of nitrate-N concentrations (41.2-247.2 mg L-1 medium), no significant influence on cell growth and microcystin production was observed; however, N-starvation resulted in a typical decrease of growth and toxicity. In addition, cryopreservation of M. aeruginosa evidenced the decrease of toxin production by time-dependent exposure with the cryoprotectant dimethyl sulfoxide under thawing conditions without affecting the growth of the cyanobacterial cells.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available