DOI: 10.1111/j.1751-1097.1962.tb08106.x. PRIMARY REACTIONS IN BACTERIAL PHOTOSYNTHESIS—II. THE QUANTUM REQUIREMENT FOR BACTERIOCHLOROPHYLL CONVERSION IN THE CHROMATOPHORE

PRIMARY REACTIONS IN BACTERIAL PHOTOSYNTHESIS—II. THE QUANTUM REQUIREMENT FOR BACTERIOCHLOROPHYLL CONVERSION IN THE CHROMATOPHORE

10.1111/j.1751-1097.1962.tb08106.x

Crossref journal-article

Wiley

Photochemistry and Photobiology (311)

Abstract

SummaryReversible light‐induced alteration of a special component of bacteriochlorophyll (BChl,) is observed in bacterial chromatophores. The alteration involves bleaching of the long‐wave absorption band at 870–890 mp and a blue shift of the band at 800 mp. Assuming that the altered BChl, molecule loses all of its long‐wave absorption, and that the extinction coefficient of this band is equal to that of the corresponding band in the major component of BChl, a quantum requirement could be computed for the light‐induced change. It was found with most preparations that two to four quanta suffice for the alteration of one BChl, molecule, even in dried chromatophores at 1° K.This result is taken as supporting evidence for the importance of light‐induced BChl, conversion in photosynthesis. It also shows that BChl, is effective as an energy sink in the chromatophore.

Bibliography

Clayton, R. K. (1962). PRIMARY REACTIONS IN BACTERIAL PHOTOSYNTHESISâII. THE QUANTUM REQUIREMENT FOR BACTERIOCHLOROPHYLL CONVERSION IN THE CHROMATOPHORE. Photochemistry and Photobiology, 1(4), 305â311. Portico.

Authors 1

R. K. Clayton (first)

References 12 Referenced 43

10.1073/pnas.46.6.769
10.1016/0006-3002(58)90223-3
10.1073/pnas.46.1.19
{'key': 'e_1_2_1_5_2', 'volume': '201', 'author': 'Clayton R. K.', 'year': '1962', 'journal-title': 'Photochem. Photobiol.'} / Photochem. Photobiol. by Clayton R. K. (1962)
{'key': 'e_1_2_1_6_2', 'volume': '313', 'author': 'Clayton R. K.', 'year': '1962', 'journal-title': 'Photochem. Photobiol.'} / Photochem. Photobiol. by Clayton R. K. (1962)
10.1002/jcp.1030490104
L. N. M.Duysens Transfer of excitation energy in photosynthesis.Thesis Ultrecht (1952).
10.1104/pp.34.3.210
10.1016/0006-3002(60)91274-9
10.1104/pp.35.6.802
10.1126/science.135.3498.101
10.1016/0003-9861(60)90194-6

Dates

Type	When
Created	17 years, 7 months ago (Jan. 2, 2008, 4:46 p.m.)
Deposited	1 year, 10 months ago (Oct. 6, 2023, 7:49 p.m.)
Indexed	3 weeks, 3 days ago (Aug. 6, 2025, 8:05 a.m.)
Issued	62 years, 10 months ago (Oct. 1, 1962)
Published	62 years, 10 months ago (Oct. 1, 1962)
Published Online	17 years, 7 months ago (Jan. 2, 2008)
Published Print	62 years, 10 months ago (Oct. 1, 1962)

Funders 0

None

BibTeX

@article{Clayton_1962, title={PRIMARY REACTIONS IN BACTERIAL PHOTOSYNTHESIS—II. THE QUANTUM REQUIREMENT FOR BACTERIOCHLOROPHYLL CONVERSION IN THE CHROMATOPHORE}, volume={1}, ISSN={1751-1097}, url={http://dx.doi.org/10.1111/j.1751-1097.1962.tb08106.x}, DOI={10.1111/j.1751-1097.1962.tb08106.x}, number={4}, journal={Photochemistry and Photobiology}, publisher={Wiley}, author={Clayton, R. K.}, year={1962}, month=oct, pages={305–311} }

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