The microbial nexus: linking arsenic biogeochemistry with greenhouse gas emissions
微生物のネクサス：ヒ素生物地球化学と温室効果ガス排出の関連 (AI 翻訳)
Zhengyu Wu, Mengqi Li, Chenhao Liu, Ran Luo, Tenglong Song, Pengna Zhang, Yanhong Wang, Ping Li
🤖 gxceed AI 要約
日本語
本レビューは、ヒ素の微生物変換（酸化、還元、メチル化）と主要な温室効果ガス（CH4, N2O, CO2）との機械的結合を包括的に整理。4つの実験・環境的に検証された関連経路を提示し、微生物駆動のヒ素- GHG相互作用の理解を深める。
English
This review synthesizes the mechanistic coupling between microbial arsenic transformations and three major greenhouse gases (CH4, N2O, CO2). It presents four experimentally validated linkages, including methane oxidation coupled with arsenic reduction, and identifies knowledge gaps for future research.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本ではヒ素汚染地域（例えば、旧鉱山地域）での温室効果ガス動態理解に貢献可能性があるが、直接的な企業開示や政策連動は限定的。基礎科学としての位置づけ。
In the global GX context
This paper provides fundamental insights into natural GHG emissions in arsenic-rich environments, relevant for global climate modeling and understanding microbial contributions to carbon and nitrogen cycles, though not directly applicable to corporate disclosure frameworks.
👥 読者別の含意
🔬研究者:Microbiologists and biogeochemists studying GHG-emission hotspots can use these mechanistic pathways to refine models of natural emissions.
📄 Abstract（原文）
Microorganisms play a pivotal role in driving both arsenic (As) biogeochemical cycling and the significantly anomalous greenhouse gas (GHG) levels frequently observed in naturally high-As environments; however, the mechanistic coupling between these two processes remains insufficiently characterized. This review presents a comprehensive synthesis of the interplay between microbial transformations of As (oxidation, reduction, and methylation/demethylation) and three major greenhouse gases—CH 4 , N 2 O, and CO 2 . We first summarize the key microbial taxa and molecular mechanisms governing As redox transformation, CH 4 oxidation and methanogenesis, autotrophic CO 2 fixation, and denitrification-driven N 2 O production. Building on this mechanistic foundation, we elucidate four experimentally and environmentally validated linkages, including (1) direct methane oxidation coupled with As(V) reduction (AOM-AsR), highlighting the molecular mechanisms that drive arsenic mobilization during anaerobic/aerobic methane oxidation and their environmental implications; (2) direct As(III) oxidation coupled with denitrification, linking the As and nitrogen cycles, wherein incomplete denitrification acts as a significant biological source of N 2 O; (3) direct As(III) oxidation driving autotrophic carbon fixation, offering a potential regional net carbon sink across diverse environments; and (4) indirect feedbacks mediated by As methylation/demethylation and geochemical mobilization, where detoxification-driven shifts in As speciation and local toxicity indirectly regulate downstream methanogenic communities and CH 4 fluxes. Finally, we identify critical knowledge gaps regarding specific molecular pathways and multi-element interactions underlying these microbially driven couplings, and propose future research directions centered on deeper mechanistic elucidation. Overall, this review provides a robust scientific foundation for understanding the complex interplay between As biogeochemistry and GHG dynamics in specific environmental niches.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.3389/fmicb.2026.1818899first seen 2026-05-30 05:31:11 · last seen 2026-06-12 05:44:41
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。