Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-6-29
pubmed:abstractText
Extracellular components released from mycelia of the alpha and beta races of the bean pathogen, Colletotrichum lindemuthianum, inhibited proton uptake in sealed vesicles prepared from bean hypocotyls. Differential sensitivity of ATP-driven proton transport to nitrate, vanadate, N,N'-dicyclohexylcarbodiimide, diethylstilbestrol, and oligomycin suggested the vesicles were enriched for tonoplast. Anion stimulation of proton transport, by enhancement of ATPase activity and dissipation of the membrane potential, was consistent with this conclusion. Although fungal components inhibited the formation of a pH gradient, the membrane potential was unaffected and the ATPase activity slightly stimulated. These data suggest that the fungal components produce an electroneutral proton exchange. Proton transport in Dark Red Kidney bean tonoplast vesicles was inhibited by mycelial preparations from the incompatible alpha race and compatible beta race. Elicitor activity, however, was greater in the alpha race fractions. Elicitor purified from alpha race culture filtrate did not inhibit proton transport in vesicles isolated from Dark Red Kidney bean. Consequently, elicitor activity need not be associated with an ability to impair tonoplast function.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jun
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
428-32
pubmed:dateRevised
2010-9-15
pubmed:year
1987
pubmed:articleTitle
The Effect of Extracellular Components from Colletotrichum lindemuthianum on Membrane Transport in Vesicles Isolated from Bean Hypocotyl.
pubmed:affiliation
Department of Biology, Utah State University, Logan, Utah 84322-4500.
pubmed:publicationType
Journal Article