PHOTOMORPHOGENESIS IN Penicillium isariaeforme: EXOGENOUS CALCIUM SUBSTITUTES FOR LIGHT

GANAPATHY MUTHUKUMAR, ELLEN C. JENSEN, ANN W. NICKERSON, MARK K. ECKLES, KENNETH W. NICKERSON

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Abstract— Penicillium isariaeforme is a photomorphogenic fungus which produces upright bundles of conidia‐bearing mycelia (called coremia) when grown on a defined medium in visible (450–500 nm) light. We found that exogenous Ca2+ ions could substitute for light. In the dark 1–2 mM Ca2+ triggered coremia formation. Dark induction of coremia was specific for Ca2+ in that it could not be duplicated by 50 mM Ba2+, Fe2+, Mg2+, Mn2+, Sr2+, or Zn2+. Additionally, light‐induced coremia formation was inhibited by both KI (2.5 mM) and phenylacetic acid (0.25 mM).

Original languageEnglish (US)
Pages (from-to)287-291
Number of pages5
JournalPhotochemistry and Photobiology
Volume53
Issue number2
DOIs
StatePublished - Feb 1991

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry

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