Photosynthetic action spectra of the energy storage in bundle sheath cells of zea mays

R. Popovic, M. Beauregard, R. M. Leblanc

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Photosynthetic action spectra (F = frac(φ ('; r) α, λ)) (Carpentier, R., Larue, B. and Leblanc, R. (1984) Arch. Biochem. Biophys. 228, 534-543.), from 400 to 750 nm were studied in bundle sheath cells of maize. Photosynthetic action spectra in the presence of 10 mM ascorbate or 4 mM ribose-5-phosphate were increased and shifted through all the spectra. After the addition of 10 M DCMU photosynthetic action spectra were remarkably diminished. On the basis of these results we suggest that the role of PSII in BS chloroplasts will be to prevent the overoxidation of PSI. I1 appears that in addition to PSII some endogen electron donor may regulate the PSI activity in bundle sheath cells.

Original languageEnglish (US)
Pages (from-to)198-202
Number of pages5
JournalBiochemical and biophysical research communications
Volume144
Issue number1
DOIs
StatePublished - Apr 14 1987
Externally publishedYes

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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