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Harvestman phenols and benzoquinones: characterisation and biosynthetic pathway.

ABSTRACT: Benzoquinones are usually present in arthropod defence exudates. Here, we describe the chemical profiles of 12 harvestman species belonging to the neotropical family Gonyleptidae. Nine of the studied species produced benzoquinones, while three produced alkyl phenols. Two benzoquinones and one phenol exhibited biological activity against bacteria and fungi. We also studied the biosynthesis of 2-ethyl-1,4-benzoquinone by feeding Magnispina neptunus individuals with ¹³C-labelled precursors; the benzoquinones were biosynthesised through a polyketide pathway using acetate and propionate building blocks.

SUBMITTER: Rocha DF 

PROVIDER: S-EPMC6270637 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature

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Harvestman phenols and benzoquinones: characterisation and biosynthetic pathway.

Rocha Daniele F O DF   Wouters Felipe C FC   Zampieri Dávila S DS   Brocksom Timothy J TJ   Machado Glauco G   Marsaioli Anita J AJ  

Molecules (Basel, Switzerland) 20130916 9

Benzoquinones are usually present in arthropod defence exudates. Here, we describe the chemical profiles of 12 harvestman species belonging to the neotropical family Gonyleptidae. Nine of the studied species produced benzoquinones, while three produced alkyl phenols. Two benzoquinones and one phenol exhibited biological activity against bacteria and fungi. We also studied the biosynthesis of 2-ethyl-1,4-benzoquinone by feeding Magnispina neptunus individuals with ¹³C-labelled precursors; the ben  ...[more]

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