Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-4-22
pubmed:abstractText
After it was observed that light induces changes in electron partitioning between the cytochrome and the alternative pathway, the focus interest was directed to assessing what type of photoreceptors are involved and the extent of such modifications. Studies on 5-day-old soybean (Glycine max L.) cotyledons using an oxygen isotope fractionation technique showed that phytochrome is involved in changes in electron partitioning between the cytochrome and the alternative respiratory pathway. A follow-up of a previous study, showing that 5 min of white light caused changes in mitochondrial electron partitioning, demonstrated that while blue light was not involved in any such changes, red light caused a significant shift of electrons toward the alternative pathway. The major shift, observed after 24 h of light, is mainly due to both a decrease in the activity of the cytochrome pathway and an increase in the activity of the alternative pathway. The involvement of a phytochrome receptor was confirmed by demonstration of reversibility by far-red light. The implications of the possible involvement of phytochrome in the regulation of mitochondrial electron transport are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1435-8603
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
281-7
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Phytochrome-driven changes in respiratory electron transport partitioning in soybean (Glycine max. L.) cotyledons.
pubmed:affiliation
Universitat de Illes Balears, Departament de Biologia, Unitat de Fisiologia Vegetal, Illes Balears, Spain. mribas@uib.es
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't