Chemotactic response of marine bacteria to the extracellular products of Synechococcus and Prochlorococcus

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Show simple item record Seymour, JR Ahmed, T Durham, WM Stocker, R 2012-02-02T06:54:46Z 2010
dc.identifier.citation Aquatic Microbial Ecology, 2010, 59 (2), pp. 161 - 168
dc.identifier.issn 0948-3055
dc.identifier.other C1UNSUBMIT en_US
dc.description.abstract The cyanobacterial genera Prochlorococcus and Synechococcus are key phototrophic organisms in the open ocean, and ecological interactions between these groups and heterotrophic bacteria have fundamental importance for marine carbon and nutrient cycling. We applied a microfluidic chemotaxis assay to study the chemotactic response of 3 marine bacterial isolates (Pseudoalteromonas haloplanktis, Vibrio alginolyticus and Silicibacter sp. TM1040) to the chemical products of Synechococcus elongatus and Prochlorococcus marinus MED 4Ax. In the ocean, chemical products from these cyanobacteria may be released into the water column via extracellular exudation or cell lysis. Strong and rapid chemotactic responses by all 3 bacterial strains occurred in reaction to the Synechococcus products. P. haloplanktis cells exhibited the strongest attraction, accumulating within the chemoattractant band in concentrations of up to 9-fold above background levels. Positive chemotaxis to Prochlorococcus chemical products also occurred, with P. haloplanktis and Silicibacter sp. TM1040 exhibiting the strongest responses. These observations indicate that marine bacteria can exhibit behavioural responses to the chemical products of Synechococcus and Prochlorococcus, which may support ecological associations between these important populations of marine prokaryotes in the environment. © Inter-Research 2010.
dc.language eng
dc.relation.isbasedon 10.3354/ame01400
dc.title Chemotactic response of marine bacteria to the extracellular products of Synechococcus and Prochlorococcus
dc.type Journal Article
dc.parent Aquatic Microbial Ecology
dc.journal.volume 2
dc.journal.volume 59
dc.journal.number 2 en_US
dc.publocation Oldendorf Luhe en_US
dc.identifier.startpage 161 en_US
dc.identifier.endpage 168 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0602 Ecology
dc.personcode 108948
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity ISI:000277253400005 en_US
dc.description.keywords Chemotaxis
dc.description.keywords Cyanobacteria
dc.description.keywords DOC
dc.description.keywords Heterotrophic bacteria
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc false
utslib.collection.history Closed (ID: 3)

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