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November 18, 2025Applied and Environmental Microbiology0 citationsOpen Access

β-alanine metabolism and manganese reduction in Halomonas sp. MNB13 from ferromanganese nodules

Non-proteinogenic β-alanine metabolism in Halomonas sp. MNB13 regulates manganese reduction in deep-sea ferromanganese nodules

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Authors

SGShuju GuoXXXiuli XuHSHui Shuai

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Overview

Comparative transcriptomic analysis reveals β-alanine metabolism enhances Mn(Ⅱ) release in Halomonas sp. MNB13, highlighting microbial-mediated biogeochemical processes.

Key Points

  • Manganese reduction was significantly enhanced by β-alanine metabolism in Halomonas sp. MNB13, leading to increased Mn(II) release.
  • Exogenous β-alanine significantly promoted organic acid secretion and enhanced bacterial growth, mitigating reactive oxygen species effects.
  • Transcriptomic analysis showed that Mn oxides upregulate β-alanine metabolism, leading to changes in intracellular concentrations.
  • These findings provide new insights into the role of amino acid metabolism in deep-sea manganese cycling.

Cite This Study

Guo et al. (2025) studied this question.

synapsesocial.com/papers/6924feebc0ce034ddc3519a0https://doi.org/10.1128/aem.02164-25
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