Long-distance electron transport by cable bacteria in mangrove sediments

Burdorf, L.D.; Hidalgo-Martinez, S.; Cook, P.L.M.C.; Meysman, F.; Meysman, F.

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Long-distance electron transport by cable bacteria in mangrove sediments

Burdorf, L.D.; Hidalgo-Martinez, S.; Cook, P.L.M.C.; Meysman, F. (2016). Long-distance electron transport by cable bacteria in mangrove sediments, in: Mees, J. et al. (Ed.) Book of abstracts – VLIZ Marine Scientist Day. Brugge, Belgium, 12 February 2016. VLIZ Special Publication, 75: pp. 24

In: Mees, J.; Seys, J. (Ed.) (2016). Book of abstracts – VLIZ Marine Scientist Day. Brugge, Belgium, 12 February 2016. VLIZ Special Publication, 75. Vlaams Instituut voor de Zee - Flanders Marine Institute (VLIZ): Oostende. xii, 165 pp.

In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950

Is gerelateerd aan:

Burdorf, L.D.; Hidalgo-Martinez, S.; Cook, P.L.M.C.; Meysman, F. (2016). Long-distance electron transport by cable bacteria in mangrove sediments. Mar. Ecol. Prog. Ser. 545: 1-8. https://dx.doi.org/10.3354/meps11635, meer

Beschikbaar in	Auteurs
VLIZ: Open access 283928 [ download pdf ] NIOZ: NIOZ Open Repository 289029 [ download pdf ]
Documenttype: Samenvatting

Trefwoorden

Chemistry > Geochemistry > Biogeochemistry
Mangroves
Bacteria [WoRMS]
Marien/Kust; Brak water

Author keywords

Electrogenic sulphur oxidation; Mangrove sediment biogeochemisty; Cable bacteria; Long-distance electron transport; Geomicrobiology

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Burdorf, L.D. Hidalgo-Martinez, S. Cook, P.L.M.C. Meysman, F.

Abstract

Cable bacteria are long, filamentoussulphur-oxidizing bacteria that induce long-distanceelectron transport in aquatic sediments. They turnthe seafloor into an electro-active environment, characterizedby currents and electrical fields, and whenpresent, they exert a strong impact on the geochemicalcycling in the seafloor. However, cable bacteriahave only recently been discovered, and so their geographicaldistribution and habitat distribution remainlargely unknown. Here we report field evidence thatcable bacteria are present and active in mangrovesediments. Combining microsensor profiling andfluorescence in situ hybridization, we recorded highfilament densities (77 m cm-2) and the signature ofelectrogenic sulphur oxidation in sediments of greymangroves near Melbourne, Australia. Our findingssuggest that cable bacteria could be a keystonemicrobial species in the geochemical cycling ofmangroves.

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