Linked Life Data

11536774

Source:http://linkedlifedata.com/resource/pubmed/id/11536774

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-6-7
pubmed:abstractText
The photoreceptor that mediates blue-light-induced phototropism in dark-grown seedlings of higher plants has not been identified, although the carotenoid zeaxanthin has recently been proposed as the putative chromophore. In the experiments described in this paper, we analyzed phototropism and a blue-light-induced protein phosphorylation that has been genetically and physiologically implicated in phototropism in wild-type maize (Zea mays L.) seedlings and compared the results with those from seedlings that are either carotenoid deficient through a genetic lesion or have been chemically treated to block carotenoid biosynthesis. The blue-light-dependent phototropism and phosphorylation responses of seedlings deficient in carotenoids are the same as those of seedlings containing normal levels of carotenoids. These results and those in the literature make it unlikely that zeaxanthin or any other carotenoid is the chromophore of the blue-light photoreceptor for phototropism or the blue-light-induced phosphorylation related to phototropism.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
110
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
1323-8
pubmed:dateRevised
2010-9-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Evidence that zeaxanthin is not the photoreceptor for phototropism in maize coleoptiles.
pubmed:affiliation
Department of Plant Biology, Carnegie Institution of Washington, Stanford, California 94305, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.