Mud volcanoes and the presence of PAHs (vol 33, pg 861, 2020)

0538420 - BC 2021 RIV GB eng J - Článek v odborném periodiku
Remizovschi, A. - Carpa, R. - Forray, F.L. - Chiriac, C. - Roba, C.-A. - Beldean-Galea, S. - Andrei, Adrian-Stefan - Szekeres, E. - Baricz, A. - Lupan, I. - Rudi, K. - Coman, C.
Mud volcanoes and the presence of PAHs (vol 33, pg 861, 2020).
Scientific Reports. Roč. 10, č. 1 (2020), č. článku 1253. ISSN 2045-2322. E-ISSN 2045-2322
Institucionální podpora: RVO:60077344
Klíčová slova: Hydrocarbon * Bacterial communities * Polyaromatic hotbeds
Obor OECD: Microbiology
Impakt faktor: 4.380, rok: 2020
Způsob publikování: Open access
https://doi.org/10.1038/s41598-020-58282-2

A mud volcano (MV) is a naturally hydrocarbon-spiked environment, as indicated by the presence
of various quantities of PAHs and aromatic isotopic shifts in its sediments. Recurrent expulsion of
various hydrocarbons consolidates the growth of hydrocarbonoclastic bacterial communities in the
areas around MVs. In addition to the widely-known availability of biologically malleable alkanes, MVs
can represent hotbeds of polyaromatic hydrocarbons (PAHs), as well - an aspect that has not been
previously explored. This study measured the availability of highly recalcitrant PAHs and the isotopic
signature of MV sediments both by GC-MS and δ13C analyses. Subsequently, this study highlighted
both the occurrence and distribution of putative PAH-degrading bacterial OT Us using a metabarcoding
technique. The putative hydrocarbonoclastic taxa incidence are the following: Enterobacteriaceae
(31.5%), Methylobacteriaceae (19.9%), Bradyrhizobiaceae (16.9%), Oxalobacteraceae (10.2%),
Comamonadaceae (7.6%) and Sphingomonadaceae (5.5%). Cumulatively, the results of this study
indicate that MVs represent polyaromatic hydrocarbonoclastic hotbeds, as defined by both natural PAH
input and high incidence of putative PAH-degrading bacterial OTUs.
Trvalý link: http://hdl.handle.net/11104/0316220