Linked Life Data

11789956

Source:http://linkedlifedata.com/resource/pubmed/id/11789956

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2002-1-14
pubmed:abstractText
An ethanolic extract of red maple (Acer rubrum L.) leaves (RME) applied to trembling aspen (Populus tremuloides Michx.) leaves reduced feeding in choice test assays with forest tent caterpillar larvae (Malacosoma disstria Hbn.) (FTC), whereas a trembling aspen foliage extract, similarly applied, stimulated feeding. Compounds isolated from the RME were gallic acid, methyl gallate, ethyl gallate, m-digallate, ethyl m-digallate, 1-O-galloyl-beta-D-glucose, 1-O-galloyl-alpha-L-rhamnose, kaempferol 3-O-beta-D-glucoside, kaempferol 3-O-beta-D-galactoside, kaempferol 3-O-beta-L-rhamnoside, kaempferol-3-O-rhamnoglucoside, quercetin 3-O-beta-D-glucoside, quercetin 3-O-beta-L-rhamnoside and quercetin 3-O-rhamnoglucoside, (-)-epicatechin. (+)-catechin and ellagic acid. All of the gallates, (-)-epicatechin, and kaempferol 3-O-beta-L-rhamnoside deterred feeding on trembling aspen leaf disks when applied at 0.28 mg/cm2. The two digallates deterred feeding by 90% and were the most effective. HPLC analysis indicated that ethyl m-digallate is present in amounts 10-100 x higher in RME (approximately 2.5-250 mg/g) than any other compound. Thus, ethyl m-digallate appears to be the major compound protecting red maple from feeding by FTC, with a minor contribution from other gallates.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0098-0331
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2517-27
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Ethyl m-digallate from red maple, Acer rubrum L., as the major resistance factor to forest tent caterpillar, Malacosoma disstria Hbn.
pubmed:affiliation
Natural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, Sault Ste Marie, Ontario. mabouzai@NRCan.gc.ca
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't