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Journal List > Plant Physiol > v.72(3); Jul 1983

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Plant Physiol. 1983 July; 72(3): 764–766.
PMCID: PMC1066317
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Modification of Blue Light Photoresponses by Riboflavin Analogs in Neurospora crassa
John Paietta1 and Malcolm L. Sargent
Department of Genetics and Development, University of Illinois, Urbana, Illinois 61801
1Present address: Department of Biochemistry, Ohio State University, 484 West 12th Avenue, Columbus, OH 43210.
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Abstract
The effect of riboflavin analogs on blue light responses in a riboflavin mutant of Neurospora crassa was studied. The analogs 1-deazariboflavin and roseoflavin, which have red-shifted absorption, acted as photoreceptors for the photosuppression and phase shifting of circadian conidiation by 540 nm light, but were ineffective as photoreceptors for the induction of carotenoid synthesis. These results provide addtional evidence implicating a flavin photoreceptor for at least two blue light responses of Neurospora.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
  • Brain Robert D, Freeberg John A, Weiss Charles V, Briggs Winslow R. Blue light-induced Absorbance Changes in Membrane Fractions from Corn and Neurospora. Plant Physiol. 1977 May;59(5):948–952. [PubMed]
  • Crouch R, Katz S, Nakanishi K, Gawinowicz MA, Balogh-Nair V. Incorporation of 11,12-dihydroretinal into the retinae of vitamin a deprived rats. Photochem Photobiol. 1981 Jan;33(1):91–95. [PubMed]
  • De Fabo Eward C, Harding Roy W, Shropshire W. Action Spectrum between 260 and 800 Nanometers for the Photoinduction of Carotenoid Biosynthesis in Neurospora crassa. Plant Physiol. 1976 Mar;57(3):440–445. [PubMed]
  • Francis Cynthia D, Sargent Malcolm L. Effects of Temperature Perturbations on Circadian Conidiation in Neurospora. Plant Physiol. 1979 Dec;64(6):1000–1004. [PubMed]
  • Klemm E, Ninnemann H. Nitrate reductase--a key enzyme in blue light-promoted conidiation and absorbance change of Neurospora. Photochem Photobiol. 1979 Mar;29(3):629–632. [PubMed]
  • Lang-Feulner J, Rau W. Redox dyes as artificial photoreceptors in light-dependent carotenoid synthesis. Photochem Photobiol. 1975 Mar;21(3):179–183. [PubMed]
  • Muñoz Victor, Butler Warren L. Photoreceptor Pigment for Blue Light in Neurospora crassa. Plant Physiol. 1975 Feb;55(2):421–426. [PubMed]
  • Otto MK, Jayaram M, Hamilton RM, Delbrück M. Replacement of riboflavin by an analogue in the blue-light photoreceptor of Phycomyces. Proc Natl Acad Sci U S A. 1981 Jan;78(1):266–269. [PubMed]
  • Paietta J, Sargent ML. Photoreception in Neurospora crassa: correlation of reduced light sensitivity with flavin deficiency. Proc Natl Acad Sci U S A. 1981 Sep;78(9):5573–5577. [PubMed]
  • Sargent ML, Briggs WR, Woodward DO. Circadian nature of a rhythm expressed by an invertaseless strain of Neurospora crassa. Plant Physiol. 1966 Oct;41(8):1343–1349. [PubMed]
  • Sargent Malcolm L, Briggs Winslow R. The Effects of Light on a Circadian Rhythm of Conidiation in Neurospora. Plant Physiol. 1967 Nov;42(11):1504–1510. [PubMed]
  • Walsh C, Fisher J, Spencer R, Graham DW, Ashton WT, Brown JE, Brown RD, Rogers EF. Chemical and enzymatic properties of riboflavin analogues. Biochemistry. 1978 May 16;17(10):1942–1951. [PubMed]
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