Scholarlink

<p>Deep-sea hydrothermal vents release large amounts of methane gas from the Earth’s interior to the overlying ocean where it is microbially oxidized before reaching the atmosphere. However, the magnitude of aerobic methane oxidation and activity of methanotrophic communities in hydrothermal plume-impacted waters remain poorly constrained. Here we provide evidence that aerobic methanotrophy represents a prominent process that quantitatively mitigates methane emissions in hydrothermal plume-impacted waters. We found that plume dispersion at the Yokosuka vent field broadly enriched methane in water columns and stimulated highly active, metabolically versatile methanotrophic communities dominated by Methylomonadaceae (&gt;65% of the RNA-based community), which emerged as the strong candidates that drove the elevated methane oxidation rates (up to 17.2 nmol L<sup>−1</sup> day<sup>−1</sup> at ~100 m from the vent). We estimated that total aerobic methane consumption across plume-impacted zones of the Okinawa Trough can reach 12.8 Gg CH<sub>4</sub> yr<sup>−1</sup>. These findings highlight the significant role of aerobic methanotrophs in reducing the emissions of hydrothermally-derived methane to the atmosphere.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Significant enrichment of aerobic methanotrophs drives rapid consumption of methane in hydrothermally impacted deep waters

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月28日

查看全文
  • Shi-Hai Mao,
  • Jia-Ke Li,
  • Min Yu,
  • Zhen Zhou,
  • Zihao Zhao,
  • Haojin Cheng,
  • Ronghua Liu,
  • Zhichao Zhou,
  • Jiwen Liu,
  • Valerie De Anda,
  • Xiao-Hua Zhang,
  • Gui-Peng Yang,
  • Andreas Teske,
  • Gerhard J. Herndl,
  • Guang-Chao Zhuang

摘要

Deep-sea hydrothermal vents release large amounts of methane gas from the Earth’s interior to the overlying ocean where it is microbially oxidized before reaching the atmosphere. However, the magnitude of aerobic methane oxidation and activity of methanotrophic communities in hydrothermal plume-impacted waters remain poorly constrained. Here we provide evidence that aerobic methanotrophy represents a prominent process that quantitatively mitigates methane emissions in hydrothermal plume-impacted waters. We found that plume dispersion at the Yokosuka vent field broadly enriched methane in water columns and stimulated highly active, metabolically versatile methanotrophic communities dominated by Methylomonadaceae (>65% of the RNA-based community), which emerged as the strong candidates that drove the elevated methane oxidation rates (up to 17.2 nmol L−1 day−1 at ~100 m from the vent). We estimated that total aerobic methane consumption across plume-impacted zones of the Okinawa Trough can reach 12.8 Gg CH4 yr−1. These findings highlight the significant role of aerobic methanotrophs in reducing the emissions of hydrothermally-derived methane to the atmosphere.