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Interspecies Interactions of the 2,6-Dichlorobenzamide Degrading Aminobacter sp. MSH1 with Resident Sand Filter Bacteria: Indications for Mutual Cooperative Interactions That Improve BAM Mineralization Activity.
Vandermaesen, Johanna; Du, Siyao; Daly, Aisling J; Baetens, Jan M; Horemans, Benjamin; De Baets, Bernard; Boon, Nico; Springael, Dirk.
Afiliação
  • Vandermaesen J; Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20 Bus 2459, B-3001 Heverlee, Belgium.
  • Du S; Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20 Bus 2459, B-3001 Heverlee, Belgium.
  • Daly AJ; KERMIT, Department of Data Analysis and Mathematical Modelling, Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
  • Baetens JM; KERMIT, Department of Data Analysis and Mathematical Modelling, Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
  • Horemans B; Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20 Bus 2459, B-3001 Heverlee, Belgium.
  • De Baets B; KERMIT, Department of Data Analysis and Mathematical Modelling, Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
  • Boon N; Center for Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
  • Springael D; Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20 Bus 2459, B-3001 Heverlee, Belgium.
Environ Sci Technol ; 56(2): 1352-1364, 2022 01 18.
Article em En | MEDLINE | ID: mdl-34982540
ABSTRACT
Bioaugmentation often involves an invasion process requiring the establishment and activity of a foreign microbe in the resident community of the target environment. Interactions with resident micro-organisms, either antagonistic or cooperative, are believed to impact invasion. However, few studies have examined the variability of interactions between an invader and resident species of its target environment, and none of them considered a bioremediation context. Aminobacter sp. MSH1 mineralizing the groundwater micropollutant 2,6-dichlorobenzamide (BAM), is proposed for bioaugmentation of sand filters used in drinking water production to avert BAM contamination. We examined the nature of the interactions between MSH1 and 13 sand filter resident bacteria in dual and triple species assemblies in sand microcosms. The residents affected MSH1-mediated BAM mineralization without always impacting MSH1 cell densities, indicating effects on cell physiology rather than on cell number. Exploitative competition explained most of the effects (70%), but indications of interference competition were also found. Two residents improved BAM mineralization in dual species assemblies, apparently in a mutual cooperation, and overruled negative effects by others in triple species systems. The results suggest that sand filter communities contain species that increase MSH1 fitness. This opens doors for assisting bioaugmentation through co-inoculation with "helper" bacteria originating from and adapted to the target environment.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Água Subterrânea / Purificação da Água / Phyllobacteriaceae Idioma: En Revista: Environ Sci Technol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Bélgica

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Água Subterrânea / Purificação da Água / Phyllobacteriaceae Idioma: En Revista: Environ Sci Technol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Bélgica