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Article

Loss of capsule confers a growth advantage to Acinetobacter spp. under microaerophilic conditions.

Microbiology spectrum - 3 Mar 2026

Marshall Kara, Colquhoun Jennifer, Singh Raja, Rather Philip N

Abstract excerpt

Acinetobacter baumannii is a strict aerobe and unable to carry out fermentative metabolism. When strain AB5075 was grown under static, non-aerated conditions, capsule-deficient mutants predominated in the culture after 24 h. In contrast, capsule mutants were not observed when cultures were aerated. In media containing thioglycolate to reduce free oxygen, capsule mutants grew to a higher density than isogenic...

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Acinetobacter
Acinetobacter baumannii
Aerobiosis
Bacterial Capsules
Culture Media

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PMID: 41568953
DOI: 10.1128/spectrum.02692-25
PMCID: PMC12955453

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026.

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