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. 1975 Feb;55(2):421–426. doi: 10.1104/pp.55.2.421

Photoreceptor Pigment for Blue Light in Neurospora crassa1

Victor Muñoz a,2,3, Warren L Butler a
PMCID: PMC541627  PMID: 16659094

Abstract

Irradiating the mycelium of Neurospora crassa with moderate intensities of blue light causes a reversible photoreduction of a b-type cytochrome. The action spectrum for the photoreduction of cytochrome b is very similar to the absorption spectrum of flavin pigments. Prolonged irradiation of the mycelium with strong blue light irreversibly bleaches flavin-like pigments and as these pigments are bleached the photoresponse of cytochrome b is lost. We conclude from these and other data that a flavin is the photoreceptor pigment for the photoreduction of cytochrome b. The close similarity between the action spectrum for the photoreduction of cytochrome b and action spectra for a number of physiological photoresponses suggests that this photoreceptor pigment controls a wide variety of photobiological processes in a wide diversity of organisms.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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