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Cited by 123Microbial Metabolism and ApplicationsLight effects on plantsPlant biochemistry and biosynthesis

Action Spectrum between 260 and 800 Nanometers for the Photoinduction of Carotenoid Biosynthesis in Neurospora crassa

Open access
De Fabo, Eward C., Harding, Roy W., Shropshire, W.·1976·Plant Physiology
DOI 10.1104/pp.57.3.440PMC PMC542042
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Abstract

An action spectrum for light-induced carotenoid biosynthesis in Neurospora crassa was determined in 4 to 20 nm steps from 260 to 800 nm. Four-day, dark-grown mycelial pads of N. crassa were exposed to varying amounts of monochromatic radiant energy and time. After a 48-hour incubation period at 6 C, carotenoid content was assayed spectrophotometrically in vivo. The action spectrum has maxima at 450 and 481 nm in the visible range and at 280 and 370 nm in the ultraviolet. A pigment synthesized by Neurospora whose absorption spectrum resembles the action spectrum is beta-carotene.A model for the regulation of carotenoid biosynthesis in N. crassa is proposed which describes a mechanism by which beta-carotene could act as a photoregulator. This carotenoid is suggested to be both photoreceptor for and regulator of carotenoid biosynthesis.

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Crossref · 10.1104/pp.57.3.440

Cites

21 of 21 references verified0 citation errors · 0 not checkable

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  • N. crassa perceives UV light through WC-1.

    “Nevertheless, there is evidence that N. crassa also perceives UV light through WC-1.”

    From Light Controls Growth and Development via a Conserved Pathway in the Fungal Kingdom (2005) · cites this paper as [31]

    The Abstract (p. 1) reports UV-induced carotenoid biosynthesis in N. crassa, with action-spectrum maxima at 280 and 370 nm. That supports a response to UV light, but the paper does not identify WC-1 as the photoreceptor; it instead proposes β-carotene as a possible photoreceptor. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

  • Prior to cloning the wc-1 gene, the spectra for inhibition of circadian rhythm and for photoinduction of carotenoid production in N. crassa were found to lie in both the UV and blue wavelengths.

    “Prior to cloning the wc-1 gene, the spectra for inhibition of circadian rhythm and for photoinduction of carotenoid production were found to lie in both the UV and blue wavelengths [31,32].”

    From Light Controls Growth and Development via a Conserved Pathway in the Fungal Kingdom (2005) · cites this paper as [31]

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Research works printed but not linked: 3

  1. [5]De FaBo, E. C. 1974. An action spectrum between 260 nm and 800 nm for the photoinduction of carotenoid synthesis in Neurospora crassa. Ph. D. thesis. George Washington University, Washington, D. C.
  2. [16]KRınsky, N. 1971. Function. In: O. Isler, ed., Carotenoids. Birkäuser, Basel, Switzerland. pp. 669-716.
  3. [26]SoNG, P.-S., T. A. MooRE, AND M. SUN. 1972. Excited states of some plant pigments. In: C. O. Chichester, ed., The Chemistry of Plant Pigments. Academic Press, New York. pp. 3374.

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Authors
De Fabo, E. C., Harding, R. W., & Shropshire, W.
Affiliations
Smithsonian Institution (US)
Venue
Plant Physiology
Publisher
Oxford University Press (OUP)
Published
1976-03-01
Volume
57
Issue
3
Pages
440-445
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
DOI
10.1104/pp.57.3.440
PMC
PMC542042
OpenAlex
W2057495072
Cited by
123
References
21
Citations by year
2023: 1 · 2020: 1 · 2019: 1 · 2017: 5 · 2016: 2 · 2014: 3 · 2012: 1
FWCI
12.65
Type
journal article
Language
en
Open access
Licence
aspb.org/publications/aspb-journals/open-articles (vor, 365 d)
Locations
  • PLANT PHYSIOLOGY (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Metabolism and Applications
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Light effects on plants
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
Keywords
action spectrum, carotenoid biosynthesis, Neurospora crassa, beta-carotene, photoregulation, photoreceptors, ultraviolet radiation, visible light, mycelial growth

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