Ocurrence of the antibiotic producing bacterium Burkholderia sp in colonies of the leaf-cutting ant Atta sexdens rubropilosa

A V Santos, R J Dillon, V M Dillon, S E Reynolds, R I Samuels

Research output: Contribution to journalArticle

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Abstract

Fungus garden material from recently established Atta sexdens rubropilosa colonies (6-12 months old) was sampled to detect antibiotic producing microorganisms that inhibited the growth of pathogens of insects and of the fungus gardens but did not affect their mutualistic fungus. A bacterium with activity against the entomopathogenic fungus Beauveria bassiana was isolated from 56% of the gardens tested (n = 57) and identified from its biochemical profile and from 16S and 23S ribosomal DNA sequences as a member of the genus Burkholderia. The ant-associated Burkholderia isolates secreted a potent, anti-fungal agent that inhibited germination of conidia of the entomopathogenic fungi B. bassiana, Metarhizium anisopliae, of the saprophytic Verticillium lecanii, and also of a specialist fungus garden Escovopsis weberi. Growth of the ant's mutualist fungus was unaffected. (C) 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)319-323
Number of pages5
JournalFEMS Microbiology Letters
Volume239
Issue number2
DOIs
Publication statusPublished - 2004

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Burkholderia
Ants
Fungi
Anti-Bacterial Agents
Bacteria
Beauveria
Metarhizium
Verticillium
Fungal Spores
Growth
Germination
Ribosomal DNA
Insects
Gardens

Cite this

Ocurrence of the antibiotic producing bacterium Burkholderia sp in colonies of the leaf-cutting ant Atta sexdens rubropilosa. / Santos, A V; Dillon, R J; Dillon, V M; Reynolds, S E; Samuels, R I.

In: FEMS Microbiology Letters, Vol. 239, No. 2, 2004, p. 319-323.

Research output: Contribution to journalArticle

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AB - Fungus garden material from recently established Atta sexdens rubropilosa colonies (6-12 months old) was sampled to detect antibiotic producing microorganisms that inhibited the growth of pathogens of insects and of the fungus gardens but did not affect their mutualistic fungus. A bacterium with activity against the entomopathogenic fungus Beauveria bassiana was isolated from 56% of the gardens tested (n = 57) and identified from its biochemical profile and from 16S and 23S ribosomal DNA sequences as a member of the genus Burkholderia. The ant-associated Burkholderia isolates secreted a potent, anti-fungal agent that inhibited germination of conidia of the entomopathogenic fungi B. bassiana, Metarhizium anisopliae, of the saprophytic Verticillium lecanii, and also of a specialist fungus garden Escovopsis weberi. Growth of the ant's mutualist fungus was unaffected. (C) 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.

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