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Gerhold DL, Craig R, Mumma RO. Analysis of trichome exudate from mite-resistant geraniums. J Chem Ecol. 1984;10(5):713-22doi: 10.1007/BF00988538.
Gerhold, D. L., Craig, R., & Mumma, R. O. (1984). Analysis of trichome exudate from mite-resistant geraniums. Journal of chemical ecology, 10(5), 713-22. https://doi.org/10.1007/BF00988538
Gerhold, D L, et al. "Analysis of trichome exudate from mite-resistant geraniums." Journal of chemical ecology vol. 10,5 (1984): 713-22. doi: https://doi.org/10.1007/BF00988538
Gerhold DL, Craig R, Mumma RO. Analysis of trichome exudate from mite-resistant geraniums. J Chem Ecol. 1984 May;10(5):713-22. doi: 10.1007/BF00988538. PMID: 24318735.
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J Chem Ecol. 1984 May;10(5):713-22. doi: 10.1007/BF00988538.

Analysis of trichome exudate from mite-resistant geraniums.

Journal of chemical ecology

D L Gerhold, R Craig, R O Mumma

Affiliations

  1. Pesticide Research Laboratory and Graduate Study Center, Departments of Entomology and Horticulture, The Pennsylvania State University, 16802, University Park, Pennsylvania.

PMID: 24318735 DOI: 10.1007/BF00988538

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.

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