Growth of electroautotrophic microorganisms using hydrovoltaic energy through natural water evaporation.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
11 Jun 2024
11 Jun 2024
Historique:
received:
15
12
2023
accepted:
03
06
2024
medline:
12
6
2024
pubmed:
12
6
2024
entrez:
11
6
2024
Statut:
epublish
Résumé
It has been previously shown that devices based on microbial biofilms can generate hydrovoltaic energy from water evaporation. However, the potential of hydrovoltaic energy as an energy source for microbial growth has remained unexplored. Here, we show that the electroautotrophic bacterium Rhodopseudomonas palustris can directly utilize evaporation-induced hydrovoltaic electrons for growth within biofilms through extracellular electron uptake, with a strong reliance on carbon fixation coupled with nitrate reduction. We obtained similar results with two other electroautotrophic bacterial species. Although the energy conversion efficiency for microbial growth based on hydrovoltaic energy is low compared to other processes such as photosynthesis, we hypothesize that hydrovoltaic energy may potentially contribute to microbial survival and growth in energy-limited environments, given the ubiquity of microbial biofilms and water evaporation conditions.
Identifiants
pubmed: 38862519
doi: 10.1038/s41467-024-49429-0
pii: 10.1038/s41467-024-49429-0
doi:
Substances chimiques
Water
059QF0KO0R
Nitrates
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
4992Subventions
Organisme : National Natural Science Foundation of China (National Science Foundation of China)
ID : 42307176
Informations de copyright
© 2024. The Author(s).
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