Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated Bacteria

Surface-associated marine bacteria often produce secondary metabolites with antagonistic activities. In this study, tropodithietic acid (TDA) was identified to be responsible for the antibacterial activity of the marine epiphytic bacterium Pseudovibrio sp. D323 and related strains. Phenol was also p...

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Main Authors: Suhelen Egan, Anahit Penesyan, Tilmann Harder, Matthew Lee, Torsten Thomas, Staffan Kjelleberg, Jan Tebben
Format: Article
Language:English
Published: MDPI AG 2011-08-01
Series:Marine Drugs
Subjects:
Online Access:http://www.mdpi.com/1660-3397/9/8/1391/
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author Suhelen Egan
Anahit Penesyan
Tilmann Harder
Matthew Lee
Torsten Thomas
Staffan Kjelleberg
Jan Tebben
author_facet Suhelen Egan
Anahit Penesyan
Tilmann Harder
Matthew Lee
Torsten Thomas
Staffan Kjelleberg
Jan Tebben
author_sort Suhelen Egan
collection DOAJ
description Surface-associated marine bacteria often produce secondary metabolites with antagonistic activities. In this study, tropodithietic acid (TDA) was identified to be responsible for the antibacterial activity of the marine epiphytic bacterium Pseudovibrio sp. D323 and related strains. Phenol was also produced by these bacteria but was not directly related to the antibacterial activity. TDA was shown to effectively inhibit a range of marine bacteria from various phylogenetic groups. However TDA-producers themselves were resistant and are likely to possess resistance mechanism preventing autoinhibition. We propose that TDA in isolate D323 and related eukaryote-associated bacteria plays a role in defending the host organism against unwanted microbial colonisation and, possibly, bacterial pathogens.
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spelling doaj.art-7f95c323184649988c2519418c1331ba2022-12-22T04:04:16ZengMDPI AGMarine Drugs1660-33972011-08-01981391140210.3390/md9081391Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated BacteriaSuhelen EganAnahit PenesyanTilmann HarderMatthew LeeTorsten ThomasStaffan KjellebergJan TebbenSurface-associated marine bacteria often produce secondary metabolites with antagonistic activities. In this study, tropodithietic acid (TDA) was identified to be responsible for the antibacterial activity of the marine epiphytic bacterium Pseudovibrio sp. D323 and related strains. Phenol was also produced by these bacteria but was not directly related to the antibacterial activity. TDA was shown to effectively inhibit a range of marine bacteria from various phylogenetic groups. However TDA-producers themselves were resistant and are likely to possess resistance mechanism preventing autoinhibition. We propose that TDA in isolate D323 and related eukaryote-associated bacteria plays a role in defending the host organism against unwanted microbial colonisation and, possibly, bacterial pathogens.http://www.mdpi.com/1660-3397/9/8/1391/marine bacteriabioactiveantimicrobialsymbiosistropodithietic acid
spellingShingle Suhelen Egan
Anahit Penesyan
Tilmann Harder
Matthew Lee
Torsten Thomas
Staffan Kjelleberg
Jan Tebben
Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated Bacteria
Marine Drugs
marine bacteria
bioactive
antimicrobial
symbiosis
tropodithietic acid
title Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated Bacteria
title_full Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated Bacteria
title_fullStr Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated Bacteria
title_full_unstemmed Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated Bacteria
title_short Identification of the Antibacterial Compound Produced by the Marine Epiphytic Bacterium Pseudovibrio sp. D323 and Related Sponge-Associated Bacteria
title_sort identification of the antibacterial compound produced by the marine epiphytic bacterium pseudovibrio sp d323 and related sponge associated bacteria
topic marine bacteria
bioactive
antimicrobial
symbiosis
tropodithietic acid
url http://www.mdpi.com/1660-3397/9/8/1391/
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