Identification of putative methylotrophic and hydrogenotrophic methanogens within sedimenting material and copepod faecal pellets

Arlene K. Ditchfield, Samuel T. Wilson, Mark C. Hart, Kevin J. Purdy, David H. Green, Angela D. Hatton*

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

21 Dyfyniadau(SciVal)

Crynodeb

In the present study, sedimenting particulate material and faecal pellets from natural and laboratory-reared copepods were examined for the presence of methanogenic Archaea. 16S rRNA gene sequences closely related to Methanogenium, Methanobacterium and Methanolobus spp. were detected, indicating the potential for different methanogenic metabolisms (hydro geno - trophic and methylotrophic methanogenesis) in these samples. The present study represents the first 16S rRNA gene-based identification of methanogens in copepod faecal pellets and importantly the first reported 16S rRNA-based occurrence of potentially hydrogenotrophic methano - gens from marine particulate material, where it was previously thought that methylotrophic methano gens dominated methanogenesis. Anaerobic incubation experiments using sedimenting particulate material and copepod faecal pellets demonstrated active methane production and indicated that the associated methanogenic community was viable under the conditions tested.

Iaith wreiddiolSaesneg
Tudalennau (o-i)151-160
Nifer y tudalennau10
CyfnodolynAquatic Microbial Ecology
Cyfrol67
Rhif cyhoeddi2
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 2012
Cyhoeddwyd yn allanolIe

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'Identification of putative methylotrophic and hydrogenotrophic methanogens within sedimenting material and copepod faecal pellets'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

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