Chemical interactions between marine macroalgae and bacteria.

Goecke, Franz Ronald, Labes, Antje, Wiese, Jutta and Imhoff, Johannes F. (2010) Chemical interactions between marine macroalgae and bacteria. Open Access Marine Ecology Progress Series, 409 . pp. 267-299. DOI 10.3354/meps08607.

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Abstract

We review research from the last 40 yr on macroalgal–bacterial interactions. Marine macroalgae have been challenged throughout their evolution by microorganisms and have developed in a world of microbes. Therefore, it is not surprising that a complex array of interactions has evolved between macroalgae and bacteria which basically depends on chemical interactions of various kinds. Bacteria specifically associate with particular macroalgal species and even to certain parts of the algal body. Although the mechanisms of this specificity have not yet been fully elucidated, ecological functions have been demonstrated for some of the associations. Though some of the chemical response mechanisms can be clearly attributed to either the alga or to its epibiont, in many cases the producers as well as the mechanisms triggering the biosynthesis of the biologically active compounds remain ambiguous. Positive macroalgal–bacterial interactions include phytohormone production, morphogenesis of macroalgae triggered by bacterial products, specific antibiotic activities affecting epibionts and elicitation of oxidative burst mechanisms. Some bacteria are able to prevent biofouling or pathogen invasion, or extend the defense mechanisms of the macroalgae itself. Deleterious macroalgal–bacterial interactions induce or generate algal diseases. To inhibit settlement, growth and biofilm formation by bacteria, macroalgae influence bacterial metabolism and quorum sensing, and produce antibiotic compounds. There is a strong need to investigate the bacterial communities living on different coexisting macroalgae using new technologies, but also to investigate the production, localization and secretion of the biological active metabolites involved in those possible ecological interactions.

Document Type: Article
Additional Information: WOS:000279054000022
Keywords: Microbiology; Marine microoganisms; Defense; Beneficial communication; Biofilms; Oxidative burst; Antibiotic activity; Quorum sensing control; GREEN-ALGA ULVA; GRACILARIA-CONFERTA RHODOPHYTA; MAKONBU LAMINARIA-JAPONICA; ICE-ICE DISEASE; KAPPAPHYCUS-ALVAREZII GIGARTINALES; PRIONITIS-LANCEOLATA RHODOPHYTA; SEAWEED SECONDARY METABOLITES; CHONDRUS-CRISPUS RHODOPHYTA; CROSS-SPECIES INDUCTION; GRAM-NEGATIVE BACTERIA
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-MI Marine Microbiology
OceanRep > GEOMAR > Applied R&D > Centre for Marine Substances (KiWiZ)
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.3354/meps08607
ISSN: 0171-8630
Projects: Future Ocean
Date Deposited: 30 Jul 2010 12:15
Last Modified: 21 Jun 2018 11:42
URI: http://oceanrep.geomar.de/id/eprint/8734

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