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Folia Microbiologica

, Volume 16, Issue 2, pp 110–113 | Cite as

Effect of Tween 80 on alkaloid-producing cultures ofClaviceps paspali

  • Z. Řeháček
  • S. C. Basappa
Article

Abstract

Addition of Tween 80 to submerged cultures ofClaviceps paspali (Stevens and Hall) growing in a simple defined medium increased biomass formation and caused a temporary change in alkaloid synthesis intensity. The Tween-supplemented culture reached maximal alkaloid yields four days earlier than the control. The shift of alkaloid production was associated with a shift of organic acids and amino acids in the cell-pool. Thus the maximal formation of alkaloids was characterized by a decrease in the amount of citric acid, by the disappearance of succinic, fumaric and oxaloacetic acids and by increased accumulation of methionine, cysteine, alanine and histidine. The slow alkaloid synthesis was accompanied by a relatively high content of citric and succinic acids in the cell-pool and by the absence of methionine. The data are consistent with the hypothesis that ergot alkaloids participate in the regulation of the metabolism of cultures.

Keywords

Alkaloid Succinic Acid Fumaric Acid Submerged Culture Ergot Alkaloid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Academia, Publishing House of the Czechoslovak Academy of Sciences 1971

Authors and Affiliations

  • Z. Řeháček
    • 1
  • S. C. Basappa
    • 1
  1. 1.Department of Biogenesis of Natural Substances, Institute of MicrobiologyCzechoslovak Academy of SciencesPrague 4

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