ISSN:
1573-1561
Keywords:
Trichome
;
geraniums
;
Pelargonium mite resistance
;
Tetranychus urticae
;
o-pentadecenylsalicylic acid
;
o-heptadecenylsalicylic acid
;
anacardic acids
;
dominant genes
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Trichome exudate from mite-resistant geraniums (Pelargonium horlorum) was analyzed, principally by mass spectrometry and NMR spectroscopy. The exudate was found to consist of two anacardic acid derivatives,o-pentadecenylsalicylic acid ando-heptadecenylsalicylic acid. Bioassays established a moderate toxicity of these compounds to the two-spotted spider mite,Tetranychus urticae. The production of these compounds in geraniums was correlated with the two complementary dominant genes previously reported for host resistance to spider mites.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00988538
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