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PMID: 16591796 Published · ppublish English Journal Article

A concept of three light reactions in photosynthesis by green plants.

Proceedings of the National Academy of Sciences of the United States of America ·Vol. 64 ·No. 2 ·1969-10-00 ·Pages 715-22

Knaff DB, Arnon DI

Abstract

It has generally been accepted that plant photosynthesis involves two light reactions, one that proceeds best in short-wavelength light and is identified with oxygen evolution (System II) and another that proceeds best in long-wavelength light and is identified with a cycle electron flow (System I). This paper presents a concept of three light reactions in photosynthesis, based on new evidence that System II comprises two rather than one short-wavelength light reaction. These appear to operate in series and to be connected by an electron transport chain peculiar to System II. Parallel to System II is the long-wavelength light reaction of System I.

Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Knaff D B
DEPARTMENT OF CELL PHYSIOLOGY, UNIVERSITY OF CALIFORNIA, BERKELEY.
Arnon D I
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
DOI
10.1073/pnas.64.2.715
Published
1969-10-00
Pages
715-22
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC223403
External Links
PubMed source DOI: 10.1073/pnas.64.2.715 PMC Full Text View journal details
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