Literature DB >> 623865

Low-intensity two-step absorption of chlorophyll A in vivo.

D Leupold, B Voigt, S Mory, P Hoffmann, B Hieke.   

Abstract

The intensity-dependent transmission of primary leaves of Triticum aestivum seedlings at lambda = 694 nm was measured with single pulses of a Q-switch ruby laser. At photon flux densities above 2 x 10(17) cm-2s-1 a decrease of transmission was observed. The result is interpreted as a two-step absorption of cooperative units of 10(5)-10(6) chlorophyll molecules.

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Year:  1978        PMID: 623865      PMCID: PMC1473354          DOI: 10.1016/S0006-3495(78)85517-9

Source DB:  PubMed          Journal:  Biophys J        ISSN: 0006-3495            Impact factor:   4.033


  4 in total

1.  Picosecond exciton annihilation in photosynthetic systems.

Authors:  A J Campillo; S L Shapiro; V H Kollman; K R Winn; R C Hyer
Journal:  Biophys J       Date:  1976-01       Impact factor: 4.033

2.  Multiple excitations in photosynthetic systems.

Authors:  D Mauzerall
Journal:  Biophys J       Date:  1976-01       Impact factor: 4.033

3.  Bimolecular quenching of excitons and fluorescence in the photosynthetic unit.

Authors:  C E Swenberg; N E Geacintov; M Pope
Journal:  Biophys J       Date:  1976-12       Impact factor: 4.033

4.  Intensity Dependence of the Fluorescence Lifetime of in vivo Chlorophyll Excited by a Picosecond Light Pulse.

Authors:  A J Campillo; V H Kollman; S L Shapiro
Journal:  Science       Date:  1976-07-16       Impact factor: 47.728

  4 in total
  1 in total

1.  A tribute: Professor Dr. Paul Hoffmann (March 28, 1931-July 10, 2008), a scientist with a great collaborative spirit.

Authors:  H Lokstein; E Höxtermann; D Leupold; G Garab; G Renger
Journal:  Photosynth Res       Date:  2009-03-10       Impact factor: 3.573

  1 in total

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