Seaweed–microbial interactions: key functions of seaweed-associated bacteria

Abstract Seaweed-associated bacteria play a crucial role in morphogenesis and growth of seaweeds (macroalgae) in direct and/or indirect ways. Bacterial communities belonging to the phyla Proteobacteria and Firmicutes are generally the most abundant on seaweed surfaces. Associated bacterial communiti...

Full description

Saved in:
Bibliographic Details
Published in:FEMS microbiology ecology 2014-05, Vol.88 (2), p.213-230
Main Authors: Singh, Ravindra Pal, Reddy, C.R.K.
Format: Article
Language:English
Subjects:
Algae
Bacteria
Bacteria - drug effects
Bacteria - growth & development
bacterial communities
Bacterial Physiological Phenomena
Bioactive compounds
Ecological function
Ecology
extracellular polymeric substances
Firmicutes
Microbiology
Plant growth
Proteobacteria
Proteobacteria - physiology
Quorum Sensing
quorum sensing signalling molecules
Seaweed - growth & development
Seaweed - microbiology
seaweeds
zoospores
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Seaweed-associated bacteria play a crucial role in morphogenesis and growth of seaweeds (macroalgae) in direct and/or indirect ways. Bacterial communities belonging to the phyla Proteobacteria and Firmicutes are generally the most abundant on seaweed surfaces. Associated bacterial communities produce plant growth-promoting substances, quorum sensing signalling molecules, bioactive compounds and other effective molecules that are responsible for normal morphology, development and growth of seaweeds. Also, bioactive molecules of associated bacteria determine the presence of other bacterial strains on seaweeds and protect the host from harmful entities present in the pelagic realm. The ecological functions of cross-domain signalling between seaweeds and bacteria have been reported as liberation of carpospores in the red seaweeds and settlement of zoospores in the green seaweeds. In the present review, the role of extracellular polymeric substances in growth and settlement of seaweeds spores is also highlighted. To elucidate the functional roles of associated bacteria and the molecular mechanisms underlying reported ecological phenomena in seaweeds requires a combined ecological, microbiological and biochemical approach. We have introduced a new topic in this area and suggested future research to understand seaweed-bacteria interactions in greater detail.
ISSN:0168-6496
1574-6941
DOI:10.1111/1574-6941.12297