ArticleThe ISME journal2018
Syntrophic growth with direct interspecies electron transfer between pili-free Geobacter species.
Article in The ISME journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed, 138 citations in OpenAlex.
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- Novel energy utilization mechanisms of microorganisms in the hydrosphere.Fundamental research · 2025Review
- A widespread and ancient bacterial machinery assembles cytochrome OmcS nanowires essential for extracellular electron transfer.Cell chemical biology · 2025Article
- Electron transport across the cell envelope via multihemeFrontiers in chemistry · 2025Review
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- Electron Transfer in the Biogeochemical Sulfur Cycle.Life (Basel, Switzerland) · 2024Review
- NonelectroactiveISME communications · 2024Article
- Biophotoelectrochemical process co-driven by dead microalgae and live bacteria.The ISME journal · 2023Article
- Microbial nanowires: type IV pili or cytochrome filaments?Trends in microbiology · 2023Review
- Enhancing electrical outputs of the fuel cells with Geobacter sulferreducens by overexpressing nanowire proteins.Microbial biotechnology · 2023Article
- Biochar Facilitated Direct Interspecies Electron Transfer in Anaerobic Digestion to Alleviate Antibiotics Inhibition and Enhance Methanogenesis: A Review.International journal of environmental research and public health · 2023Review
- Different outer membranemLife · 2022Article
- Cryo-EM structure of an extracellular Geobacter OmcE cytochrome filament reveals tetrahaem packing.Nature microbiology · 2022Article
- Article
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Authors and funding
4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Direct interspecies electron transfer (DIET) may prevail in microbial communities that show methanogenesis and anaerobic methane oxidation and can be an electron source to support anaerobic photosynthesis. Previous mutagenic studies on cocultures of defined Geobacter species indicate that both conductive pili and extracellular cytochromes are essential for DIET. However, the actual functional role of the pili in DIET is uncertain, as the pilus mutation strategy used in these studies affected the extracellular cytochrome profile. Here we repressed the function of pili by deleting the pilus polymerization motor PilB in both Geobacter species. The PilB mutation inhibited the pilus assembly but did not alter the pattern of extracellular cytochromes. We report that the two pilus-free Geobacter species can form aggregates and grow syntrophically with DIET. The results demonstrate that the Gmet_2896 cytochrome of Geobacter metallireducens plays a key role in DIET and that conductive pili are not necessary to facilitate DIET in cocultures of Geobacter species, and they suggest cytochromes by themselves can meditate DIET, deepening the understanding of DIET.
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