Nucleic Acid Digestion and Macronuclear Form in Cannibal Blepharisma, New York University Strain

N. TULCHIN, HENRY I. HIRSHFIELD

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2 Scopus citations

Abstract

SYNOPSIS. Cannibal giant Blepharisma undulans americanus, NYU strain, grown in mass culture, showed increased numbers of macronuclear lobes and greater variability in their number, compared to the bacteria‐fed form. Feulgen and methyl greenpyronin preparations stained both the DNA and RNA of the cannibals and of the ingested forms within the food vacuoles. During the first 3 to 6 hours of digestion, macronucleus and deoxyribonucleic acid disappear from the food vacuole; during the last 6 hours the ribonucleic acid disappears from the food vacuole; DNA and RNA are therefore presumed to be digested and absorbed.

Original languageEnglish
Pages (from-to)200-203
Number of pages4
JournalJournal of Eukaryotic Microbiology
Volume9
Issue number2
DOIs
StatePublished - May 1962
Externally publishedYes

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