Kinetics of EPR signal IIvf in chloroplast Photosystem II

Michael D Boska, Kenneth Sauer

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The risetime of EPR signal IIvf (S IIvf) has been measured in oxygen-evolving Photosystem II particles from spinach chloroplasts at pH 6.0. The EPR signal shows an instrument-limited rise upon induction (t 1 2 ≤ 3 μs). These data are consistent with a model where the species Z responsible for S IIvf is the immediate electron donor to P-680+ in spinach chloroplasts. A new, faster decay component of S IIvf has also been detected in these experiments.

Original languageEnglish (US)
Pages (from-to)84-87
Number of pages4
JournalBBA - Bioenergetics
Volume765
Issue number1
DOIs
StatePublished - Apr 26 1984

Fingerprint

Photosystem II Protein Complex
Spinacia oleracea
Chloroplasts
Paramagnetic resonance
Kinetics
Electrons
Oxygen
Experiments
P-680

Keywords

  • (Spinach chloroplast)
  • ESR
  • Electron transport
  • Photosystem II

ASJC Scopus subject areas

  • Biophysics

Cite this

Kinetics of EPR signal IIvf in chloroplast Photosystem II. / Boska, Michael D; Sauer, Kenneth.

In: BBA - Bioenergetics, Vol. 765, No. 1, 26.04.1984, p. 84-87.

Research output: Contribution to journalArticle

Boska, Michael D ; Sauer, Kenneth. / Kinetics of EPR signal IIvf in chloroplast Photosystem II. In: BBA - Bioenergetics. 1984 ; Vol. 765, No. 1. pp. 84-87.
@article{362444d1426f467cada6adde033412fa,
title = "Kinetics of EPR signal IIvf in chloroplast Photosystem II",
abstract = "The risetime of EPR signal IIvf (S IIvf) has been measured in oxygen-evolving Photosystem II particles from spinach chloroplasts at pH 6.0. The EPR signal shows an instrument-limited rise upon induction (t 1 2 ≤ 3 μs). These data are consistent with a model where the species Z responsible for S IIvf is the immediate electron donor to P-680+ in spinach chloroplasts. A new, faster decay component of S IIvf has also been detected in these experiments.",
keywords = "(Spinach chloroplast), ESR, Electron transport, Photosystem II",
author = "Boska, {Michael D} and Kenneth Sauer",
year = "1984",
month = "4",
day = "26",
doi = "10.1016/0005-2728(84)90160-9",
language = "English (US)",
volume = "765",
pages = "84--87",
journal = "Biochimica et Biophysica Acta - Bioenergetics",
issn = "0005-2728",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Kinetics of EPR signal IIvf in chloroplast Photosystem II

AU - Boska, Michael D

AU - Sauer, Kenneth

PY - 1984/4/26

Y1 - 1984/4/26

N2 - The risetime of EPR signal IIvf (S IIvf) has been measured in oxygen-evolving Photosystem II particles from spinach chloroplasts at pH 6.0. The EPR signal shows an instrument-limited rise upon induction (t 1 2 ≤ 3 μs). These data are consistent with a model where the species Z responsible for S IIvf is the immediate electron donor to P-680+ in spinach chloroplasts. A new, faster decay component of S IIvf has also been detected in these experiments.

AB - The risetime of EPR signal IIvf (S IIvf) has been measured in oxygen-evolving Photosystem II particles from spinach chloroplasts at pH 6.0. The EPR signal shows an instrument-limited rise upon induction (t 1 2 ≤ 3 μs). These data are consistent with a model where the species Z responsible for S IIvf is the immediate electron donor to P-680+ in spinach chloroplasts. A new, faster decay component of S IIvf has also been detected in these experiments.

KW - (Spinach chloroplast)

KW - ESR

KW - Electron transport

KW - Photosystem II

UR - http://www.scopus.com/inward/record.url?scp=0040107675&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0040107675&partnerID=8YFLogxK

U2 - 10.1016/0005-2728(84)90160-9

DO - 10.1016/0005-2728(84)90160-9

M3 - Article

VL - 765

SP - 84

EP - 87

JO - Biochimica et Biophysica Acta - Bioenergetics

JF - Biochimica et Biophysica Acta - Bioenergetics

SN - 0005-2728

IS - 1

ER -