The motile and tactic behaviour of Pseudomonas aeruginosa in anaerobic environments

FEBS Letters

Evans, Michael C.W.¹  Armitage, Judith P.¹ 

[1] Department of Botany and Microbiology, University College London, Gower Street, London, WC1E 6BT, England

关键词: Pseudomonas aeruginosa;    Membrane potential;    ATP;    Bacterial motility;    Flagellar rotation;   

DOI  :  10.1016/0014-5793(83)80259-2

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

ATP generated by the anaerobic metabolism of L-arginine in Pseudomonas aeruginosa was used to maintain the membrane potential. Although both the ATP concentration and membrane potential were lower than in aerobically incubated bacteria, motility and chemotaxis were almost normal. Venturicidin stopped anaerobic motility by abolishing the membrane potential. The addition of venturicidin to aerobic bacteria caused an increase in the membrane potential, but a decrease in internal ATP concentration, resulting in bacteria which were motile but non-chemotactic. The membrane potential was the only requirement for continued motility but ATP was required in addition for chemotaxis.

【 授权许可】

Unknown