Linked Life Data

11540328

Source:http://linkedlifedata.com/resource/pubmed/id/11540328

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Suppl 1
pubmed:dateCreated
1998-3-28
pubmed:abstractText
Gravitropic bending of fruiting bodies of Flammulina velutipes (Curtis) Karst. is based on the differential growth of the transition zone between stem and cap. Reorientation becomes visible as early as 2 h after displacing the fruiting body from the vertical to the horizontal position. It is preceded by a preferential accumulation of microvesicles within the hyphae on the lower side of the transition zone and related to an increase in the vacuolar compartment required for hyphal extension. A model made of a bundle of interconnected balloons is used to demonstrate that a differential volume increase at one flank is sufficient to bend the entire structure in the opposite direction. Gravitropic raising of intact stems or segments derived from the transition zone requires positional information which can be accomplished by three major, coordinated events: (i) gravisensing by the individual hyphae within the transition zone, (ii) unidirectional signalling by means of a soluble growth factor creating a vertical concentration gradient, and (iii) translation of the concentration signal into elongation growth.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0032-0935
pubmed:author
pubmed:issnType
Print
pubmed:volume
203
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
S23-32
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Flammulina as a model system for fungal graviresponses.
pubmed:affiliation
Lehrstuhl fur Botanik, Technische Universitat Munchen at Freising-Weihenstephan, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't