Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 47:568-575 (1971)
© 1971 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (164)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Cheniae, G. M.
Right arrow Articles by Martin, I. F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Cheniae, G. M.
Right arrow Articles by Martin, I. F.
Agricola
Right arrow Articles by Cheniae, G. M.
Right arrow Articles by Martin, I. F.
Articles

Effects of Hydroxylamine on Photosystem II

I. Factors Affecting the Decay of O2 Evolution 1

George M. Cheniae and Iris F. Martin

a Research Institute for Advanced Studies, 1450 South Rolling Road, Baltimore, Maryland 21229

Illumination of chloroplasts in the presence of NH2OH (2 mM) leads to the destruction of all system II activities without affecting system I activity. The system II primary charge separation remains intact when incubated with this agent in the dark with release of one of the system II Mn pools and simultaneous destruction of O2 evolving capacity. The size of the Mn pool associated with the O2 evolving center is calculated to be 4 Mn/O2-evolving center.

We observed the following properties of the hydroxylamine-induced destruction of O2 centers in darkness: [List: see text]

Chloroplasts from summer greenhouse spinach (4-5 Mn/400 chltotal or 50 to 60% of the Mn pool of the O2-evolving center) showed high quantum requirement for O2 evolution (5-6 hv/equivalent) yet photooxidized NH2OH with low quantum requirement (~2 hv/equivalent).

1 This work was financed in part by the Atomic Energy Commission (AT (30-1)-3706) and the National Aeronautics and Space Administration (NASW-1592).




This article has been cited by other articles:


Home page
 J. Biol. Chem.Home page
G. M. MacDonald, J. J. Steenhuis, and B. A. Barry
A Difference Fourier Transform Infrared Spectroscopic Study of Chlorophyll Oxidation in Hydroxylamine-treated Photosystem II
J. Biol. Chem., April 14, 1995; 270(15): 8420 - 8428.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1971 by the American Society of Plant Biologists