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Diesel-born organosulfur compounds stimulate community re-structuring in a diesel-biodesulfurizing consortium.


ABSTRACT: We enriched and characterized a biodesulfurizing consortium (designated as MG1). The MG1 consortium reduced the total sulfur of diesel by 25 % and utilized each of the diesel-born compounds dibenzothiophene (DBT), benzothiophene (BT), 4-methyldibenzothiophene (4-MDBT) and 4, 6-dimethyldibenzothiophene (4, 6-DMDBT) as a sole sulfur source. MiSeq analysis revealed compositional shifts in the MG1 community according to the type of the sulfur source. A DBT-grown MG1 culture had Klebsiella, Pseudomonas, Rhodococcus and Sphingomonas as the most abundant genera. When diesel or 4, 6-DMDBT was provided as a sole sulfur source, Klebsiella and Pseudomonas spp. were the most abundant. In the BT culture, Rhodococcus spp. were the key biodesulfurizers, while Klebsiella, Pseudomonas and Sphingomonas spp. dominated the 4-MDBT-grown consortium. MG1 also utilized 2-hydroxybiphenyl (the product of the 4S biodesulfurization pathway) where Pseudomonas spp. uniquely dominated the consortium. The data improves our understanding of the sulfur source-driven structural adaptability of biodesulfurizing consortia.

SUBMITTER: Awadh M 

PROVIDER: S-EPMC7749429 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Diesel-born organosulfur compounds stimulate community re-structuring in a diesel-biodesulfurizing consortium.

Awadh Maysoon M   Mahmoud Huda H   Abed Raeid M M RMM   El Nayal Ashraf M AM   Abotalib Nasser N   Ismail Wael W  

Biotechnology reports (Amsterdam, Netherlands) 20201123


We enriched and characterized a biodesulfurizing consortium (designated as MG1). The MG1 consortium reduced the total sulfur of diesel by 25 % and utilized each of the diesel-born compounds dibenzothiophene (DBT), benzothiophene (BT), 4-methyldibenzothiophene (4-MDBT) and 4, 6-dimethyldibenzothiophene (4, 6-DMDBT) as a sole sulfur source. MiSeq analysis revealed compositional shifts in the MG1 community according to the type of the sulfur source. A DBT-grown MG1 culture had <i>Klebsiella</i>, <i  ...[more]

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