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(R)-(+)-Palasonin, a cantharidin-related plant toxin, also occurs in insect hemolymph and tissues

Title data

Fietz, Oliver ; Dettner, Konrad ; Görls, Helmar ; Klemm, Kerstin ; Boland, Wilhelm:
(R)-(+)-Palasonin, a cantharidin-related plant toxin, also occurs in insect hemolymph and tissues.
In: Journal of Chemical Ecology. Vol. 28 (2002) Issue 7 . - pp. 1315-1327.
ISSN 1573-1561
DOI: https://doi.org/10.1023/A:1019561517040

Abstract in another language

Gas chromatographic and mass spectroscopic analyses of extracts of cantharidin-containing meloid, clerid, and staphylinid beetles revealed the presence of minor to significant amounts of palasonin, previously only known from seeds and fruits of the Indian shrub Buteafrondosa (Leguminaceae). Unlike (S)-(-)-palasonin (> 99% ee) from B. frondosa, the insects produce palasonin of low ee with the (R)-(+)-enantiomer (0-50% ee) prevailing. The ee of palasonin from individual specimens of predatory insects (Trichodes apiarius), which acquire their chemical protection from cantharidin-producing insects, may vary considerably. The absolute configuration of (S)-(-)-palasonin, previously deduced from indirect chemical and spectroscopic methods, was confirmed by X-ray crystal structure analysis of a cyclic imide derived from (S)-(-)-palasonin and (S)-(-)- 1 -(4-nitrophenyl)-ethylamine.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER32645
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology II - Evolutionary Animal Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors > Chair Animal Ecology II - Univ.-Prof. Dr. Konrad Dettner
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 11 Sep 2015 06:34
Last Modified: 11 Sep 2015 06:34
URI: https://eref.uni-bayreuth.de/id/eprint/19289