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2012

Beneficial effects of 2,4-diacetylphloroglucinol- producing pseudomonads on the marine alga Saccharina latissima

Nagel, K., Schneemann, I., Kajahn, I., Labes, A., Wiese, J., & Imhoff, J. F. (2012). Beneficial effects of 2,4-diacetylphloroglucinol- producing pseudomonads on the marine alga Saccharina latissima. Aquatic Microbial Ecology, 67, 239–249. Abgerufen von http://oceanrep.geomar.de/19108/ (Original work published 2025)

Abstract

Pseudomonas strains were shown to be regularly associated with the brown macroalga Saccharina latissima from the Baltic Sea, studied over several years, and were identified as producers of the antimicrobially active compound 2,4-diacetylphloroglucinol. These findings support the assumption of a stable association between the Pseudomonas spp. strains and S. latissima in the Baltic Sea. The metabolite profile of the Pseudomonas spp. comprised monoacetylphloroglucinol, 2,4-diacetylphloroglucinol, pyoluteorin and several rhizoxins, which exhibited broad-spectrum antibiotic activities against Gram-positive and Gram-negative bacteria as well as against fungi. Because the antibiotic activities included the inhibition of the 2 algal pathogens Pseudoalteromonas elyakovii and Algicola bacteriolytica, we propose a beneficial effect of these marine pseudomonads on their host S. latissima.
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2012

Journal Article

Kerstin Nagel

Imke Schneemann

Inga Kajahn

Antje Labes

Jutta Wiese

Johannes Imhoff

Pseudomonas protegens ? Alga?bacteria association ? 2

4-diacetylphloroglucinol ? Pyoluteorin ? Rhizoxin ? Brown macroalgae

RESISTANT STAPHYLOCOCCUS-AUREUS

FLUORESCENT PSEUDOMONAS

LAMINARIA-SACCHARINA

SECONDARY METABOLITES

IN-VITRO

BACTERIA

PF-5

JAPONICA

STRAINS

AGENT

2011

Bacteria associated with coexisting macroalgae: seasonal, interspecies variation and antibiotic effects

Goecke, F. R., Labes, A., Wiese, J., & Imhoff, J. F. (2011). Bacteria associated with coexisting macroalgae: seasonal, interspecies variation and antibiotic effects. In VAAM-Jahrestagung 2011. Abgerufen von http://oceanrep.geomar.de/12920/
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2011

Conference Paper

Franz Goecke

Antje Labes

Jutta Wiese

Johannes Imhoff

Microbiology

Medical Science

BACTERIA

antibiotic effects

Macroalgae

2010

Interactions between macroalgae and bacteria: Bacterial communities associated to two baltic macroalgae

Goecke, F. R., Wiese, J., Labes, A., & Imhoff, J. F. (2010). Interactions between macroalgae and bacteria: Bacterial communities associated to two baltic macroalgae. In 5. International Student Conference: Biodiversity and functioning of aquatic ecosystems in the Baltic Sea region. Abgerufen von http://oceanrep.geomar.de/10231/
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2010

Conference Paper

Franz Goecke

Jutta Wiese

Antje Labes

Johannes Imhoff

Microbiology

Macroalgae

BACTERIA

2012

Beneficial effects of 2,4-diacetylphloroglucinol- producing pseudomonads on the marine alga Saccharina latissima

Abstract

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2011

Bacteria associated with coexisting macroalgae: seasonal, interspecies variation and antibiotic effects

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2010

Interactions between macroalgae and bacteria: Bacterial communities associated to two baltic macroalgae

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