Linked Life Data

5978547

Source:http://linkedlifedata.com/resource/pubmed/id/5978547

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1967-11-4
pubmed:abstractText
Light-induced absorbance changes were investigated in chloroplast fragments of wild type Chlamydomonas reinhardi and 5 different mutant strains having impaired photosynthesis. Two absorbance changes were detected, 1 having a maximum at 553 nm and the other at 559 nm. The component exhibiting the 553 nm change is a cytochrome similar to cytochrome f from higher plant chloroplasts. The component exhibiting the 559 nm change has the properties of a cytochrome similar to cytochrome b(3). Two of the mutant strains (ac-115 and ac-141) were found to lack the 559 cytochrome and light induced only the oxidation of the 553 cytochrome. A third mutant strain (ac-206), previously shown to lack the 553 cytochrome, exhibited only the light-induced reduction of the 559 cytochrome. A fourth mutant strain (ac-208), shown to lack plastocyanin, exhibited absorbance changes attributable to both cytochromes. However, light was capable of inducing the reduction of the 559 cytochrome but not its oxidation. On the other hand, light induced the oxidation of the 553 cytochrome but not its reduction. These observations are discussed in terms of the series formulation for photosynthetic electron transport in which the 559 cytochrome is reduced by system II and transfers electrons via the component affected in ac-21 to the 553 cytochrome. Accordingly, system I sensitizes the oxidation of the 3 components of the electron transport chain.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1293-300
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1966
pubmed:articleTitle
Photosynthetic electron transport chain of Chlamydomonas reinhardi. 3. Light-induced absorbance changes in chloroplast fragments of the wild type and mutant strains.
pubmed:publicationType
Journal Article