𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effect of temperature and light on the toxicity and growth of the blue-green algaMicrocystis aeruginosa(UV-006)

✍ Scribed by A. J. Westhuizen; J. N. Eloff

Publisher
Springer-Verlag
Year
1985
Tongue
English
Weight
473 KB
Volume
163
Category
Article
ISSN
0032-0935

No coin nor oath required. For personal study only.

✦ Synopsis

The toxicity and growth of Microcystis aeruginosa (UV-0O6) from the Hartbeespoort Dam, South Africa were investigated at different temperatures and photon fluence rates under laboratory conditions. Cells harvested in late logarithmic growth phase were most toxic when grown at 20~ (LDs0) median lethal dose [IP, mouse] = 25.4 mg kg-~). Toxicity was markedly reduced at growth temperatures above 28~ Fluence rate had a smaller effect on the toxicity of the cells, but toxicity tended to be less at the very low and high light fluences. Optimal conditions for growth did not coincide with those for toxin production. Well-aerated cultures of this isolate kept at pH 9.5 by COz addition, a temperature of 20-24 ~ C, a fluence rate of 145 gmol photons m -2 s -1 and harvested in the late logarithmic growth phase yielded the maximum quantity of toxin.

πŸ“œ SIMILAR VOLUMES

The Effect of pH on Copper Toxicity to B
The Effect of pH on Copper Toxicity to Blue-Green Algae
✍ Dr. V. LΓΌderitz; Doz. Dr. sc. A. Nicklisch πŸ“‚ Article πŸ“… 1989 πŸ› John Wiley and Sons 🌐 English βš– 417 KB πŸ‘ 1 views

The effect of pH on copper toxicity to two planktonic blue-green algae, Aphanizomenon gracile and Oscillatoria redekei, was investigated. Growth rates of the algae without copper treatment decrease with pH, Aphanizornenon is earlier and more affected than Oscillatoria. On the other hand, pH-lowering

Effects of light, temperature, pH, and i
Effects of light, temperature, pH, and inhibitors on the ATP level of the blue-green algaAnacystic nidulans
✍ T. Bornefeld; W. Simonis πŸ“‚ Article πŸ“… 1974 πŸ› Springer-Verlag 🌐 English βš– 517 KB

The dependence of the ATP level of the blue-green alga Anacystis nidulans on light intensity (300-20000 erg. cm -~. s -1 white light) and on temperature (0-50~ pH (6.5-9.0), and phosphate concentration (up to 10 -1 M) in light (20000 lx) and dark was measured. In contrast to a low ATP level in darkn

Effect of water temperature and light in
Effect of water temperature and light intensity on growth rate and toxicity change inProtogonyaulax tamarensis
✍ T. Ogata; T. Ishimaru; M. Kodama πŸ“‚ Article πŸ“… 1987 πŸ› Springer-Verlag 🌐 English βš– 397 KB

The effect of water temperature and light intensity on the growth rate and the toxicity of Protogonyaulax tamarensis was examined using a monoclonal culture isolated from Ofunato Bay, Japan in March, 1984. The growth rate decreased with the decrease of either light intensity or temperature. The amou