A1 Refereed original research article in a scientific journal
Flavonoid Metabolites in the Hemolymph of European Pine Sawfly (Neodiprion sertifer) Larvae
Authors: Vihakas M, Tahtinen P, Ossipov V, Salminen JP
Publisher: SPRINGER
Publication year: 2012
Journal: Journal of Chemical Ecology
Journal name in source: JOURNAL OF CHEMICAL ECOLOGY
Journal acronym: J CHEM ECOL
Number in series: 5
Volume: 38
Issue: 5
First page : 538
Last page: 546
Number of pages: 9
ISSN: 0098-0331
DOI: https://doi.org/10.1007/s10886-012-0113-y
Abstract
Flavonoids in the hemolymph of European pine sawfly () larvae that were feeding on needles were identified. HPLC-ESI-MS analysis revealed that the main components in the hemolymph were flavonol di- and triglucosides and a catechin monoglucoside. These compounds were isolated from the larval hemolymph and their structures were established by HPLC-MS, GC-MS, and NMR spectroscopy. The isolated flavonoids were identified as (+)-catechin 7---glucoside, isorhamnetin 3,7,4'-tri---glucoside, kaempferol 3,7,4'-tri---glucoside, and quercetin 3,7,4'-tri---glucoside. The combined concentration of these four compounds in the hemolymph was 3.7 mg/ml. None of these compounds was present in the needles of . Therefore, we propose that the flavonoid glucosides were produced by the larvae from flavonoid monoglucosides and (+)-catechin obtained from the pine needles.
Flavonoids in the hemolymph of European pine sawfly () larvae that were feeding on needles were identified. HPLC-ESI-MS analysis revealed that the main components in the hemolymph were flavonol di- and triglucosides and a catechin monoglucoside. These compounds were isolated from the larval hemolymph and their structures were established by HPLC-MS, GC-MS, and NMR spectroscopy. The isolated flavonoids were identified as (+)-catechin 7---glucoside, isorhamnetin 3,7,4'-tri---glucoside, kaempferol 3,7,4'-tri---glucoside, and quercetin 3,7,4'-tri---glucoside. The combined concentration of these four compounds in the hemolymph was 3.7 mg/ml. None of these compounds was present in the needles of . Therefore, we propose that the flavonoid glucosides were produced by the larvae from flavonoid monoglucosides and (+)-catechin obtained from the pine needles.
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