Antimicrobial activities of components of the glandular secretions of leaf cutting ants of the genus Atta

The secretions of the mandibular and metapleural glands of leaf cutting ants contain antimicrobial substances that protect the mutualistic fungal colony within the nest from attack by parasitic micro-organisms. The major constituents of these secretions (citral, 4-methyl-3-heptanol, 2-heptanone, 3-o...

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Veröffentlicht in:Antonie van Leeuwenhoek 2009-05, Vol.95 (4), p.295-303
Hauptverfasser: de Lima Mendonça, Adriana, da Silva, Carlos Eduardo, de Mesquita, Fernando Lucas Torres, da Silva Campos, Rousseau, Do Nascimento, Ruth R, de Azevedo Ximenes, Eulália Camelo Pessoa, Sant'Ana, Antônio Euzébio G
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container_end_page 303
container_issue 4
container_start_page 295
container_title Antonie van Leeuwenhoek
container_volume 95
creator de Lima Mendonça, Adriana
da Silva, Carlos Eduardo
de Mesquita, Fernando Lucas Torres
da Silva Campos, Rousseau
Do Nascimento, Ruth R
de Azevedo Ximenes, Eulália Camelo Pessoa
Sant'Ana, Antônio Euzébio G
description The secretions of the mandibular and metapleural glands of leaf cutting ants contain antimicrobial substances that protect the mutualistic fungal colony within the nest from attack by parasitic micro-organisms. The major constituents of these secretions (citral, 4-methyl-3-heptanol, 2-heptanone, 3-octanone, 4-methyl-2-heptanone, β-citronellol, geraniol, phenylacetic, indolacetic, hexanoic and octanoic acids were tested against resistant strains of the human pathogens, Escherichia coli, Staphylococcus aureus and Candida albicans. Assays were carried out using filter paper discs impregnated with either hexane or water solutions of the analytes in the concentration range 250-6,000 ng/μl. Although most of the tested compounds presented strong antibacterial and antifungal activities, citral, geraniol, 4-methyl-3-heptanol, hexanoic and octanoic acids were the most effective, particularly against C. albicans. The results suggest that these compounds may be of potential value as antibiotics in the treatment of human candidiasis.
doi_str_mv 10.1007/s10482-009-9312-0
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subjects Animals
Anti-Infective Agents - isolation & purification
Anti-Infective Agents - pharmacology
Antibiotics
Antibiotics (antibacterial agents, antifungal agents)
Antibiotics, microbial producers, chemotherapic agents, antiseptics, disinfecting agents
Antifungal activity
Antimicrobial activity
Antimicrobial agents
Ants - chemistry
Applied microbiology
Atta
Bacteria
Biochemistry
Biological and medical sciences
Biomedical and Life Sciences
Bodily Secretions - chemistry
Candida albicans
Candida albicans - drug effects
Candidiasis
Caproates - isolation & purification
Caproates - pharmacology
Caprylates - isolation & purification
Caprylates - pharmacology
citral
Colonies
Cuttings
E coli
Escherichia coli
Escherichia coli - drug effects
Filter paper
Formicidae
Fundamental and applied biological sciences. Psychology
Geraniol
Glands
Indoleacetic Acids - isolation & purification
Indoleacetic Acids - pharmacology
Insects
Ketones - isolation & purification
Ketones - pharmacology
Leaves
Life Sciences
Mandible
Medical Microbiology
Microbial Sensitivity Tests
Microbiology
Monoterpenes - isolation & purification
Monoterpenes - pharmacology
n-Hexane
Nests
octanoic acid
Original Paper
Pathogens
Phenylacetates - isolation & purification
Phenylacetates - pharmacology
Plant Sciences
Secretions
Soil Science & Conservation
Staphylococcus aureus
Staphylococcus aureus - drug effects
Studies
Terpenes - isolation & purification
Terpenes - pharmacology
title Antimicrobial activities of components of the glandular secretions of leaf cutting ants of the genus Atta
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