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Alteration of cylindrospermopsin production in sulfate- or phosphate-starved cyanobacterium Aphanizomenon ovalisporum.

Abstract
The effect of sulfate and phosphate deprivation on cell growth and cylindrospermopsin level was studied in Aphanizomenon ovalisporum ILC-164. Sulfate starvation induced a characteristic reduction of cylindrospermopsin pool size on the basis of cell number and unit of dry mass of culture. Phosphorous starvation of A. ovalisporum cultures induced a lesser reduction of cylindrospermopsin pool size. This divergence in the pool size of cylindrospermopsin may be the consequence of different growth rate. To show the metabolic changes concomitant with reduction of cylindrospermopsin pool size were obtained by measurement of ATP sulfurylase and alkaline phosphatase activity. The present study is the first concerning the cylindrospermopsin content under sulfate starvation and discusses it in relation to phosphorous starvation.
AuthorsIstván Bácsi, Gábor Vasas, Gyula Surányi, Márta M-Hamvas, Csaba Máthé, Eszter Tóth, István Grigorszky, Attila Gáspár, Szilvia Tóth, George Borbely
JournalFEMS microbiology letters (FEMS Microbiol Lett) Vol. 259 Issue 2 Pg. 303-10 (Jun 2006) ISSN: 0378-1097 [Print] Netherlands
PMID16734794 (Publication Type: Journal Article)
Chemical References
  • Alkaloids
  • Bacterial Toxins
  • Phosphates
  • Sulfates
  • cylindrospermopsin
  • Uracil
  • Sulfate Adenylyltransferase
  • Alkaline Phosphatase
Topics
  • Alkaline Phosphatase (metabolism)
  • Alkaloids (biosynthesis)
  • Aphanizomenon (growth & development, metabolism)
  • Bacterial Toxins (biosynthesis)
  • Phosphates (metabolism)
  • Sulfate Adenylyltransferase (metabolism)
  • Sulfates (metabolism)
  • Uracil (analogs & derivatives, biosynthesis)

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