Can subsequent hydrogenotrophic enrichments lead to the loss of direct electron transfer capability?
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Subsequent hydrogenotrophic enrichments can potentially lead to the loss of direct electron transfer (DIET) capability . In the study by Rous et al., it was observed that autotrophic bacteria enriched on a polarized cathode using H2 or the cathode as an electron source showed comparable N2 fixation rates to those enriched without a microbial electrochemical system. This suggests that the presence of alternative electron sources, such as H2, may influence the microbial community composition and potentially impact DIET capabilities. Additionally, the study by Smith et al. highlighted the complexity of interspecies interactions in DIET systems, indicating that factors beyond electrical connections, such as the expression of type VI secretion systems, can influence the effectiveness of DIET partnerships. Therefore, subsequent enrichments with hydrogenotrophic conditions may alter the microbial interactions and potentially affect the DIET capability within the community.
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| Subsequent hydrogenotrophic enrichments may lead to a loss of direct electron transfer capability, as observed by a decrease in current density over time in the microbial communities. | |
| Subsequent hydrogenotrophic enrichments can potentially lead to the loss of direct electron transfer capability in microbial guilds enriched for biocathodic applications, as per the research findings. | |
244 Citations | Subsequent hydrogenotrophic enrichments can lead to the loss of direct electron transfer capability, as demonstrated in paddy soil enrichments with nanoFe3O4 facilitating DIET during syntrophic butyrate oxidation. |
| Not addressed in the paper. | |
100 Citations | Subsequent hydrogenotrophic enrichments may not lead to the loss of direct electron transfer capability in Methanobacterium, suggesting a robust and potentially stable interspecies electron transfer mechanism. |
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