Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2010-6-29
pubmed:abstractText
The flowering of Lemma perpusilla grown on half-strength Hutner's medium with sucrose under inductive photo-periods is inhibited in a periodic manner by daily transfers to water for short periods of time. The phase of maximal inhibition of flowering caused by water treatment is about 1 to 2 hours after the time of maximal sensitivity to light pulses. The rhythm of sensitivity to water treatments does not persist under continuous blue light. Supplementing the water with either Ca(NO(3))(2) or K(2)HPO(4) partially reverses the inhibition of flowering, with the first salt being more effective. Supplementation with NH(4)NO(3) or MgSO(4) increases the inhibition. The water effect on flowering is not observed in plants grown on half-strength Hutner's medium without sucrose. The water treatments may act by removing or destroying a crucial precursor for photoperiodic induction, with the other conditions modifying permeability. The system provides a new technique for investigating the mechanism of photoperiodic induction.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Nov
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
641-4
pubmed:dateRevised
2010-9-15
pubmed:year
1970
pubmed:articleTitle
Response of Lemma perpusilla to Periodic Transfer to Distilled Water.
pubmed:affiliation
Biology Department, Brookhaven National Laboratory, Upton, New York 11973.
pubmed:publicationType
Journal Article