Studies on the macroconidia of Microsporum canis. Characteristics of in vitro amino acid incorporating system.

Abstract:

:The characteristics of an in vitro polyuridylic acid dependent amino acid incorporating system prepared from germinating macroconidia of Microsporum canis are described. The incorporation of 14C-phenylalanine into polyphenylalanine is dependent on S-30 extract, adenosine triphosphate, magnesium ions and polyuridylic acid. Incorporation is slightly enhanced by yeast transfer ribonucleic acid and pyruvate kinase. The system is highly sensitive to ribonuclease, puromycin and miconazole (an antifungal agent), moderately sensitive to sodium fluoride and much less sensitive to phenethylalcohol, cycloheximide, chloramphenicol and deoxyribonuclease. Cell-free extract from ungerminated conidia has less capacity to synthesize the protein and during germination a marked increase in the protein synthetic activity is observed. The results from experiments wherein ribosomes and S-100 fraction from germinated and ungerminated spores are unterchanged, revealed that the defect in the extract from the ungerminated spore is in the ribosomes.

journal_name

Arch Microbiol

journal_title

Archives of microbiology

authors

Jayaram BM,Rao GR

doi

10.1007/BF00413276

subject

Has Abstract

pub_date

1979-01-16 00:00:00

pages

67-72

issue

1

eissn

0302-8933

issn

1432-072X

journal_volume

120

pub_type

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