1990
DOI: 10.1021/es00079a017
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Environmental factors affecting the production of peptide toxins in floating scums of the cyanobacterium Microcystis aeruginosa in a hypertrophic African reservoir

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Cited by 169 publications
(120 citation statements)
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“…Our data agree with laboratory studies, but are in conflict with field studies in natural Microcystis blooms. MC concentration in phytoplankton correlated positively with TN, NO 3 -N and TP in 50 New Hampshire lakes (Haney and Ikawa 2001), with TP in eutrophic lakes in Alberta, Canada (Kotak et al 2000), and with soluble reactive phosphorus in Steilacoom Lake (Jacoby et al 2000); and correlated negatively with orthophosphate in Hartbeespoort Dam, South Africa (Wicks and Thiel 1990). Contradictory data may be due to different responses of Microcystis strains to various environmental factors.…”
Section: Resultsmentioning
confidence: 96%
See 1 more Smart Citation
“…Our data agree with laboratory studies, but are in conflict with field studies in natural Microcystis blooms. MC concentration in phytoplankton correlated positively with TN, NO 3 -N and TP in 50 New Hampshire lakes (Haney and Ikawa 2001), with TP in eutrophic lakes in Alberta, Canada (Kotak et al 2000), and with soluble reactive phosphorus in Steilacoom Lake (Jacoby et al 2000); and correlated negatively with orthophosphate in Hartbeespoort Dam, South Africa (Wicks and Thiel 1990). Contradictory data may be due to different responses of Microcystis strains to various environmental factors.…”
Section: Resultsmentioning
confidence: 96%
“…However, only a few studies addressed the significance of direct environmental influences on microcystin production by Microcystis (Wicks and Thiel 1990;Kotak et al 1995Kotak et al , 2000Jacoby et al 2000). Such studies on cyanobacterial toxins in natural algal blooms are still lacking from subtropical China, especially in the Chinese plateau lakes.…”
Section: ó Springer Science+business Media Llc 2007mentioning
confidence: 99%
“…Although Microcystis species frequently occur in the same habitat, the mechanisms determining the dominance of the several Microcystis species are not yet clearly understood. The growth and succession of the Microcystis complex is determined by multiple factors (various physico-chemical and biological factors), and dominant factors can differ depending on Microcystis species as well as habitat characteristics, such as nutrients, solar radiation, pH, temperature, primary production and oxygen saturation (Takamura, 1988;Wicks and Thiel, 1990;Kotak et al, 2000;Janse et al, 2005). Honma and Park (2005) reported that NO 3 − concentration affected the composition of populations containing M. aeruginosa and M. viridis, while M. ichthyoblabe dominated under low phosphate conditions.…”
Section: Explanation Of the Dynamics Of Microcystis Morphospeciesmentioning
confidence: 99%
“…On the other hand, environmental factors can adjust and control the expression of microcystin genes. Several field studies have shown that certain environmental factors are associated with the amount of toxins found in cyanobacterial blooms (Wicks and Thiel, 1990;Zheng et al, 2004). A wide range of laboratory studies also have examined the effects of various environmental factors on microcystin production, including trace metal supply (Lukac and Aegerter, 1993;Utkilen and Gjølme, 1995), nitrogen and phosphorus (Sivonen, 1990), light and temperature (van der Westhuizen and Eloff, 1985), pH (de Maagd et al, 1999), culture medium (Song et al, 1998), water column stability (Huisman et al, 1999) and grazing pressure by zooplankton (Paerl, 1996;Hyenstrand et al, 1998).…”
Section: Introductionmentioning
confidence: 99%