Linked Life Data

11829020

Source:http://linkedlifedata.com/resource/pubmed/id/11829020

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2002-2-5
pubmed:abstractText
A treatment period as brief as 8 h in 10(-3) M EGTA completely blocks gravitropism in 70-80% of the treated coleoptiles of oats (Avena sativa L. cv. Garry) without inhibiting growth. Only about 10% of the plants perfused in water failed to exhibit gravitropism. Subsequent perfusion of EGTA-treated plants with calcium completely restores gravitropism; post-perfusion with water does not. After perfusion in water for 10 h, gravistimulated oat coleoptile segments show the same asymmetry of 45Ca distribution as reported earlier for non-perfused coleoptiles and sunflower hypocotyls. The degree of this asymmetry is reduced in those coleoptiles partially inhibited by perfusion in EGTA and is essentially absent in those coleoptiles completely inhibited by EGTA. The fact that calcium reverses the inhibitory effects of EGTA on gravitropism indicates that the inhibition was probably due to a reduction in the availability of free calcium required for one or more of the transduction steps of gravitropism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0031-9317
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
449-54
pubmed:dateRevised
2008-3-10
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Inhibition of gravitropism in oat coleoptiles by the calcium chelator, ethyleneglycol-bis-(beta-aminoethyl ether)-N,N'-tetraacetic acid.
pubmed:affiliation
Hopei Teachers College, Dept of Biology, Peoples' Republic of China.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.