2019
DOI: 10.1016/j.watres.2019.114974
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Discrepant gene functional potential and cross-feedings of anammox bacteria Ca. Jettenia caeni and Ca. Brocadia sinica in response to acetate

Abstract: Although the enhancement of anammox performance for wastewater treatment due to the addition of small amount of acetate has been reported, discrepant metabolic responses of different anammox species have not been experimentally evaluated. Based on metagenomics and metatranscriptomic data, we investigated the competitiveness between two typical anammox species, Candidatus Jettenia caeni (J. caeni) and Candidatus Brocadia sinica (B. sinica), in anammox consortia under mixotrophic condition, where complex metabol… Show more

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Cited by 87 publications
(10 citation statements)
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“…Cross-feeding behavior between anammox bacteria and denitrifiers for nutrients like amino acids has been proposed. 26 This study analyzed the distribution of essential amino acid synthesis proteins and discovered that anammox bacteria dominated the system's amino acid synthesis for their own growth, accounting for 44.94% of amino acid synthesis proteins (Table S3). Acetyl-CoA is a vital precursor metabolite for amino acid synthesis.…”
Section: Microbial Community Evolution Dynamics and Interspecies Inte...mentioning
confidence: 99%
“…Cross-feeding behavior between anammox bacteria and denitrifiers for nutrients like amino acids has been proposed. 26 This study analyzed the distribution of essential amino acid synthesis proteins and discovered that anammox bacteria dominated the system's amino acid synthesis for their own growth, accounting for 44.94% of amino acid synthesis proteins (Table S3). Acetyl-CoA is a vital precursor metabolite for amino acid synthesis.…”
Section: Microbial Community Evolution Dynamics and Interspecies Inte...mentioning
confidence: 99%
“…The presence of organic carbon provides energy to the growth of denitrifiers and boosts N 2 O consumption by easing the carbon limitation of N 2 O reduction to N 2 , which is the last step of denitrification [ 52 ]. The enhancement of anammox performance for wastewater treatment by the addition of a small amount of acetate has been reported [ 62 , 63 ], contributing to a reduction in metabolic energy cost for the entire community under a low C/N ratio [ 63 ].…”
Section: N 2 O Emission Rate and Influence Factorsmentioning
confidence: 99%
“…It appears that Candidatus Brocadia spp. proliferate easily in systems treating COD-containing wastewaters (Table ), probably because they utilize organic carbon at higher rates compared to the other AMX-affiliated species, giving them an added advantage. Indeed, based on recent metatranscriptomic and metagenomic analyses, Feng et al reported superior acetate utilization by Candidatus Brocadia sinica compared to Candidatus Jettenia caeni due to more acetate metabolic pathways and higher expressions of adenosine monophosphate-forming acetyl-CoA synthetase genes. On the other hand, the dominance of Nitrosomonas spp.…”
Section: Microbial Ecology Of Anammox-mediated Nitrogen Removal Systemsmentioning
confidence: 99%