Growth of Astasia longa on Ethanol. I. Effects of Ethanol on Generation Time, Population Density and Biochemical Profile

D. E. BUETOW, G. M. PADILLA

Research output: Contribution to journalArticle

Abstract

SYNOPSIS. The colorless flagellate, Astasia longa, grows to high cell densities (5–6.6 × 106 cells/ml) with ethanol instead of acetate as carbon source in a chemically defined medium. The generation time was the same on the two substrates. The dry weight of ethanol‐grown Astasia was 23% higher than acetate‐grown Astasia, largely due to a higher carbohydrate content which offset a reduced lipid content. Protein, RNA, and DNA contents were comparable in the two cases whereas O2 uptake was 17% higher in the ethanol‐grown Astasia. The high population densities on ethanol are examined in terms of these biochemical differences as well as changes in the medium during growth.

Original languageEnglish (US)
Pages (from-to)121-123
Number of pages3
JournalThe Journal of Protozoology
Volume10
Issue number1
DOIs
StatePublished - Feb 1963
Externally publishedYes

ASJC Scopus subject areas

  • Parasitology

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