http://www.cnr.it/ontology/cnr/individuo/prodotto/ID169940

Citrantifidiene and citrantifidiol: bioactive metabolites produced by Trichoderma citrinoviride with potential antifeedant activity toward aphids. (Articolo in rivista)

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Citrantifidiene and citrantifidiol: bioactive metabolites produced by Trichoderma citrinoviride with potential antifeedant activity toward aphids. (Articolo in rivista) (literal)

Anno

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Alternative label

Evidente A., Ricciardiello G., Andolfi A., Sabatini M. A., Ganassi S., Altomare C., Favilla M., Melck D. (2008)
Citrantifidiene and citrantifidiol: bioactive metabolites produced by Trichoderma citrinoviride with potential antifeedant activity toward aphids.
in Journal of agricultural and food chemistry
(literal)

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Evidente A., Ricciardiello G., Andolfi A., Sabatini M. A., Ganassi S., Altomare C., Favilla M., Melck D. (literal)

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Rivista

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Dipartimento di Scienze del Suolo, della Pianta, dellAmbiente e delle Produzioni Animali, Universita` di Napoli Federico II, Via Universita` 100, 80055 Portici, Italy, Dipartimento di Biologia Animale, Universita` di Modena e Reggio Emilia, Via Campi 213/D, 41100 Modena, Italy, Istituto di Scienze delle Produzioni Alimentari del CNR, Via Amendola 122/O, 70126 Bari, Italy, and Istituto di Chimica Biomolecolare del CNR, Comprensorio Olivetti, Edificio 70, Via Campi Flegrei 34, 80078 Pozzuoli, Italy (literal)

Titolo

Citrantifidiene and citrantifidiol: bioactive metabolites produced by Trichoderma citrinoviride with potential antifeedant activity toward aphids. (literal)

Abstract

Trichoderma citrinoviride strain ITEM 4484 grown in solid-state fermentation on sterile rice kernels. The producing strain was identified at species level by sequence analysis of the internal transcribed spacer regions ITS-1 and ITS-2 of the nuclear rDNA and a fragment of the translation elongation factor gene TEF-1R. Fractionation by column chromatography and TLC of the culture organic extract, followed by feeding preference tests on the aphid pest Schizaphis graminum (Rondani), allowed the purification of 5.8 and 8.9 mg/kg of culture of two bioactive metabolites, which were named citrantifidiene and citrantifidiol (1 and 2). Citrantifidiene and citrantifidiol, whose structures were determined by spectroscopic methods (NMR and MS) are a symmetrical disubstituted hexa-1,3- dienyl ester of acetic acid and a tetrasubstituted cyclohexane-1,3-diol, respectively. The pure metabolites influenced the feeding preference of S. graminum restraining individuals from feeding on wheat leaves dipped in 5% aqueous methanol solution containing 0.57 mg/mL of citrantifidiene or 0.91 mg/mL of citrantifidiol. (literal)

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