These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Photostimulation of conidiation in mutants of Neurospora crassa.
    Author: Ninnemann H.
    Journal: J Photochem Photobiol B; 1991 May; 9(2):189-99. PubMed ID: 1830899.
    Abstract:
    Various mutants of Neurospora crassa were screened for light-stimulated conidiation which is a blue light effect and, at least in strain albino-band, is mediated by the flavoprotein nitrate reductase (NR). NR- mutants showed practically no photoconidiation under standard conditions. However, in fusion products of nit-1 (diaphorase activity present, terminal activity missing) plus nit-3 (terminal activity present, diaphorase activity missing), NR activities and photoconidiation were partially restored. Mutants with altered light sensitivities, such as white collar WC-1 and light-insensitive lis-2 and lis-3, had normal NR activities and their conidiation was promoted by light, whereas WC-2 and lis-1 responded only slightly. These two mutants showed low NR activities especially when grown on solid medium which might be the cause of their blindness. Experiments with NR- mutants indicated that nitrite reductase might also act as a blue light photoreceptor.
    [Abstract] [Full Text] [Related] [New Search]