The fungus gardens grown by leaf-cutter ants are kept free of unwanted fungi and bacteria using multiple antimicrobial compounds concurrently.

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"Scientists at the University of East Anglia, have shown that fungus-farming ants are using multiple antibiotics as weed killers to maintain their fungus gardensants use the antibiotics to inhibit the growth of unwanted fungi and bacteria in their fungus cultures which they use to feed their larvae and queen

"These antibiotics are produced by actinomycete bacteria that live on the ants in a mutual symbiosis.

"Although these ants have been studied for more than 100 years this is the first demonstration that a single ant colony uses multiple antibiotics and is reminiscent of the use of multidrug therapy to treat infections in humans.

"…Dr Hutchings' research investigates the Acromyrmex octospinosus leaf cutter ant, endemic in South and Central America and the southern US." (EurekAlert! 2010)

 

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Ants found to use multiple antibiotics as weed killers

Journal article
A mixed community of actinomycetes produce multiple antibiotics for the fungus farming ant Acromyrmex octospinosusBMC BiologyAugust 26, 2010
Jörg Barke, Ryan F Seipke, Sabine Grüschow, Darren Heavens, Nizar Drou, Mervyn J Bibb, Rebecca JM Goss, Douglas W Yu, Matthew I Hutchings

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Organism
Leafcutter AntAcromyrmex octospinosusSpecies


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