ArticleJournal of bioenergetics and biomembranes2010
The obligate alkaliphile Bacillus clarkii K24-1U retains extruded protons at the beginning of respiration.
Article in Journal of bioenergetics and biomembranes, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 12 citations in OpenAlex.
- HFrontiers in microbiology · 2025Review
- Differences in Bioenergetic Metabolism of Obligately AlkaliphilicFrontiers in microbiology · 2022Review
- The archaeal-bacterial lipid divide, could a distinct lateral proton route hold the answer?Biology direct · 2020Article
- Formation of Proton Motive Force Under Low-Aeration Alkaline Conditions in Alkaliphilic Bacteria.Frontiers in microbiology · 2018Review
- A Hydrophobic Small Protein, BpOF4_01690, Is Critical for Alkaliphily of AlkaliphilicFrontiers in microbiology · 2018Article
- Contribution of intracellular negative ion capacity to Donnan effect across the membrane in alkaliphilic Bacillus spp.Journal of bioenergetics and biomembranes · 2016Article
- Bioenergetics and the role of soluble cytochromes C for alkaline adaptation in gram-negative alkaliphilic Pseudomonas.BioMed research international · 2015Review
- Relationship between rates of respiratory proton extrusion and ATP synthesis in obligately alkaliphilic Bacillus clarkii DSM 8720(T).Journal of bioenergetics and biomembranes · 2012Article
- Physiological function of soluble cytochrome c-552 from alkaliphilic Pseudomonas alcaliphila AL15-21(T).Journal of bioenergetics and biomembranes · 2011Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Alkaliphiles grow under alkaline conditions that might be disadvantageous for the transmembrane pH gradient (Delta pH, outside acidic). In this study, the behaviors of extruded protons by the respiration of obligate alkaliphilic Bacillus clarkii K24-1U were investigated by comparison with those of neutralophilic Bacillus subtilis IAM 1026. Although whole-cell suspensions of both Bacillus species consumed oxygen immediately after the addition of air, there were lag times before the suspensions were acidified. Under alkaline conditions, the lag time for B. clarkii significantly increased, whereas that for B. subtilis decreased. In the presence of valinomycin or ETH-157, which disrupts the membrane electrical potential (Delta psi), the cell suspensions of both Bacillus species acidified immediately after the addition of air. Artificial electroneutral antiporters (nigericin and monensin) that eliminate the Delta pH exhibited no significant effect on the lag times of the two Bacillus species except that monensin increased the lag times of B. clarkii. The inhibition of ATPase and the Na(+) channel also exhibited little effects on the lag times. The increased lag time for B. clarkii may represent the Delta psi-dependent proton retention on the outer surface of the cytoplasmic membrane to generate a sufficient Delta pH under alkaline conditions.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.