Linked Life Data

18690207

Source:http://linkedlifedata.com/resource/pubmed/id/18690207

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7210
pubmed:dateCreated
2008-9-16
pubmed:abstractText
Shoot branching is a major determinant of plant architecture and is highly regulated by endogenous and environmental cues. Two classes of hormones, auxin and cytokinin, have long been known to have an important involvement in controlling shoot branching. Previous studies using a series of mutants with enhanced shoot branching suggested the existence of a third class of hormone(s) that is derived from carotenoids, but its chemical identity has been unknown. Here we show that levels of strigolactones, a group of terpenoid lactones, are significantly reduced in some of the branching mutants. Furthermore, application of strigolactones inhibits shoot branching in these mutants. Strigolactones were previously found in root exudates acting as communication chemicals with parasitic weeds and symbiotic arbuscular mycorrhizal fungi. Thus, we propose that strigolactones act as a new hormone class-or their biosynthetic precursors-in regulating above-ground plant architecture, and also have a function in underground communication with other neighbouring organisms.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1476-4687
pubmed:author
pubmed:issnType
Electronic
pubmed:day
11
pubmed:volume
455
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
195-200
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Inhibition of shoot branching by new terpenoid plant hormones.
pubmed:affiliation
RIKEN Plant Science Center, Tsurumi, Yokohama 230-0045, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't