Skip to main content
PMC home page
Plant Physiology logoLink to Plant Physiology
. 1968 Dec;43(12):1991–1995. doi: 10.1104/pp.43.12.1991

Photosynthetic Enhancement in the Diatom Phaeodactylum tricornutum 1

James E Mann 1,2,2, Jack Myers 1,2
PMCID: PMC1087116  PMID: 16657000

Abstract

Enhancement phenomena in photosynthesis of the diatom Phaeodactylum tricornutum Lewin were studied by means of a Haxo oxygen electrode and 2 monochromatic light beams. It was necessary to correct for a minor non-linearity in rate oxygen evolution vs. intensity similar to that reported for Chlorella. Action spectra on complementary backgrounds and derived enhancement spectra were compared to in vivo absorption spectra in identifying the character of pigment systems 1 and 2. Fucoxanthin, chlorophyll c, and chlorophyll a-670 are clearly assignable to pigment system 2 which absorbs in excess at wavelengths 400 to 678 mμ. Chlorophyll a-1 (and a portion of the fucoxanthin) are assignable to pigment system 1 which absorbs in excess at wavelengths 678 to 750 mμ. Enhancement values were generally lower than those observed in Chlorella or Anacystis and lead to conclusion that diatom pigmentation provides an effective light harvesting apparatus.

Full text

PDF
1991

Selected References

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

  1. Bannister T. T., Vrooman M. J. Enhancement of the Photosynthesis of Chlorella pyrenoidosa as a Function of Far-Red and Short-Wave Illuminations. Plant Physiol. 1964 Jul;39(4):622–629. doi: 10.1104/pp.39.4.622. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Blinks L. R. ACTION SPECTRA OF CHROMATIC TRANSIENTS AND THE EMERSON EFFECT IN MARINE ALGAE. Proc Natl Acad Sci U S A. 1960 Mar;46(3):327–333. doi: 10.1073/pnas.46.3.327. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. DUYSENS L. N., AMESZ J., KAMP B. M. Two photochemical systems in photosynthesis. Nature. 1961 May 6;190:510–511. doi: 10.1038/190510a0. [DOI] [PubMed] [Google Scholar]
  4. Eley J. H., Jr, Myers J. Enhancement of photosynthesis by alternated light beams and a kinetic model. Plant Physiol. 1967 Apr;42(4):598–607. doi: 10.1104/pp.42.4.598. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. French C. S. Changes with age in the absorption spectrum of chlorophyll a in a diatom. Arch Mikrobiol. 1967;59(1):93–103. doi: 10.1007/BF00406320. [DOI] [PubMed] [Google Scholar]
  6. Joliot P., Joliot A., Kok B. Analysis of the interactions between the two photosystems in isolated chloroplasts. Biochim Biophys Acta. 1968 Apr 2;153(3):635–652. doi: 10.1016/0005-2728(68)90191-6. [DOI] [PubMed] [Google Scholar]
  7. Jones L. W., Myers J. Enhancement in the Blue-Green Alga, Anacystis nidulans. Plant Physiol. 1964 Nov;39(6):938–946. doi: 10.1104/pp.39.6.938. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. PROVASOLI L., MCLAUGHLIN J. J., DROOP M. R. The development of artificial media for marine algae. Arch Mikrobiol. 1957;25(4):392–428. doi: 10.1007/BF00446694. [DOI] [PubMed] [Google Scholar]

Articles from Plant Physiology are provided here courtesy of Oxford University Press

RESOURCES