DOI: 10.1016/0014-5793(86)80048-5. On the role of the Q<sub>B</sub>protein of PS II in photoinhibition

On the role of the QBprotein of PS II in photoinhibition

10.1016/0014-5793(86)80048-5

Crossref journal-article

Wiley

FEBS Letters (311)

Abstract

Preillumination of spinach thylakoid membranes under strictly anaerobic conditions (i.e. in the presence of glucose oxidase) and in the absence of an electron acceptor inactivates specifically photosystem (PS) II. Inhibition can be complete within 3 min depending on the glucose oxidase concentration and light intensity. Artificial donor or acceptor systems do not restore PS II. Atrazine binding affinity is not diminished. No degradation of peptide subunits is observed. Trypsinized PS II preparations, in which the QB‐binding site has been destroyed, can also be inactivated by light. It is concluded that photoinhibition of thylakoid membranes under anaerobic conditions inactivates the reaction center of PS II. This photoinactivation does not depend on the degradation of a peptide subunit. Not only the QBsite but also a modified (trypsinized) QAsite can induce photoinhibition.

Bibliography

Arntz, B., & Trebst, A. (1986). On the role of the QBprotein of PS II in photoinhibition. FEBS Letters, 194(1), 43â49. Portico.

Authors 2

B. Arntz (first)
A. Trebst (additional)

References 25 Referenced 90

10.1016/0968-0004(85)90272-5
10.1111/j.1751-1097.1985.tb01559.x
10.1073/pnas.78.2.981
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{'key': 'e_1_2_1_6_1', 'first-page': '641', 'volume-title': 'Chloroplast Development', 'author': 'Edelman M.', 'year': '1978'} / Chloroplast Development by Edelman M. (1978)
{'key': 'e_1_2_1_6_2', 'first-page': '641', 'volume-title': 'Chloroplast Development', 'author': 'Edelman M.', 'year': '1978'} / Chloroplast Development by Edelman M. (1978)
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{'key': 'e_1_2_1_10_1', 'first-page': '215', 'volume-title': 'Current Physics Series: Antennas and Reaction and Centers of Photosynthetic Bacteria - Structure, Interactions and Dynamics', 'author': 'Trebst A.', 'year': '1985'} / Current Physics Series: Antennas and Reaction and Centers of Photosynthetic Bacteria - Structure, Interactions and Dynamics by Trebst A. (1985)
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{'key': 'e_1_2_1_15_1', 'first-page': '499', 'volume-title': 'La Photosynthèse', 'author': 'Trebst A.', 'year': '1963'} / La Photosynthèse by Trebst A. (1963)
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10.1007/BF00395424
10.1016/S0165-8646(24)00086-2 / Photobiochem. Photobiophys. by Satoh K. (1982)
10.1007/BF00393510
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10.1007/BF00392242

Dates

Type	When
Created	23 years, 1 month ago (July 25, 2002, 3:57 a.m.)
Deposited	9 months ago (Dec. 2, 2024, 11:18 p.m.)
Indexed	1 day, 8 hours ago (Sept. 4, 2025, 9:12 a.m.)
Issued	39 years, 8 months ago (Jan. 1, 1986)
Published	39 years, 8 months ago (Jan. 1, 1986)
Published Online	23 years, 10 months ago (Oct. 29, 2001)
Published Print	39 years, 8 months ago (Jan. 1, 1986)

Funders 0

None

BibTeX

@article{Arntz_1986, title={On the role of the QBprotein of PS II in photoinhibition}, volume={194}, ISSN={1873-3468}, url={http://dx.doi.org/10.1016/0014-5793(86)80048-5}, DOI={10.1016/0014-5793(86)80048-5}, number={1}, journal={FEBS Letters}, publisher={Wiley}, author={Arntz, B. and Trebst, A.}, year={1986}, month=jan, pages={43–49} }

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