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Ability of Pseudoalteromonas tunicata to colonize natural biofilms and its effect on microbial community structure

Rao, Dhana, Skovhus, Torben, Tujula, Niina, Holmström, Carola, Dahllöf, Ingela, Webb, Jeremy S and Kjelleberg, Staffan (2010) Ability of Pseudoalteromonas tunicata to colonize natural biofilms and its effect on microbial community structure FEMS Microbiology Ecology, 73, (3), pp. 450-457. (doi:10.1111/j.1574-6941.2010.00917.x). (PMID:20579099).

Record type: Article

Abstract

We investigated the effectiveness of surface colonization by the epiphytic marine bacterium Pseudoalteromonas tunicata firstly on a complex biofilm community on glass slides, and secondly, on the epiphytic community of Ulva australis. The effectiveness of P. tunicata was compared with the performance of Phaeobacter sp. 2.10, also a marine epiphytic isolate in the U. australis colonization experiments. Pseudoalteromonas tunicata cells were able to colonize the glass slide community at densities found naturally in the water column (9.7 x 10(4) cells mL(-1)). However, P. tunicata was a poor invader of the epiphytic community on U. australis at densities of 10(6) cells mL(-1). At densities of 10(8) cells mL(-1), P. tunicata again exerted little impact on the epiphytic community. Phaeobacter sp. 2.10 was also a poor invader at lower densities, but was able to invade and become dominant at densities of 10(8) cells mL(-1). Differences in the ability of P. tunicata and Phaeobacter sp. 2.10 to invade natural communities may be due to differences in the antibacterial compounds produced by the two species. These experiments suggest that epiphytic communities may have protective effects compared with inanimate surfaces.

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More information

Published date: September 2010
Keywords: biofilm, invasion, pseudoalteromonas tunicata, phaeobacter, epiphytic community

Identifiers

Local EPrints ID: 186847
URI: http://eprints.soton.ac.uk/id/eprint/186847
PURE UUID: fd42ecbd-3952-4eaa-96a2-8d91401bfc4c

Catalogue record

Date deposited: 16 May 2011 09:28
Last modified: 18 Jul 2017 11:46

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Contributors

Author: Dhana Rao
Author: Torben Skovhus
Author: Niina Tujula
Author: Carola Holmström
Author: Ingela Dahllöf
Author: Jeremy S Webb
Author: Staffan Kjelleberg

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