| Dissolved organic matter defines microbial communities during initial soil formation after deglaciation | |
Shen, Jie; Liang, Ziyan1; Kuzyakov, Yakov2,7; Li, Weitao3 ; He, Yuting4; Wang, Changquan5; Xiao, Yang; Chen, Ke6; Sun, Geng8; Lei, Yanbao8
| |
| 2023 | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| ISSN | 0048-9697 |
| Volume | 878Issue:xPages:- |
| Abstract | Ecosystem succession and pedogenesis reshuffle the composition and turnover of dissolved organic matter (DOM) and its interactions with soil microbiome. The changes of these connections are especially intensive during initial pedogenesis, e.g. in young post-glacial areas. The temporal succession and vertical development of DOM effects on microbial community structure remains elusive. Using Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FTICR MS), high-throughput sequencing, and molecular ecological networks, we characterized the molecular diversity of water-extractable DOM and identified its links to microbial communities in soil profiles along deglaciation chronosequence (12, 30, 40, 52, 80, and 120 years) in the southeastern Tibetan Plateau. Low-molecular-weight compound content decreased, whereas the mid- and high-molecular-weight compounds increased with succession age and soil depth. This was confirmed by the increase in double bond equivalents and averaged oxygen-to-carbon ratios (O/ C), and decrease in hydrogen-to-carbon ratios (H/C), which reflect DOM accumulation and stabilization. Microbial community succession shifted towards the dominance of oligotrophic Acidobacteria and saprophytic Mortierellomycota, reflecting the increase of stable DOM components (H/C < 1.5 and wider O/C). Less DOM-bacterial positive networks during the succession reduced specialization of labile DOM production (such as lipid- and protein-like compounds), whereas more DOM-fungal negative networks increased specialization of stable DOM decomposition (such as tannin-and condensed aromatic-like compounds). Consequently, DOM stability is not intrinsic during initial pedogen-esis: stable DOM compounds remain after fast bacterial utilization of labile DOM compounds, whereas fungi decom-pose slowly the remaining DOM pools. |
| Keyword | HAILUOGOU GLACIER NUTRIENT LIMITATION PRIMARY SUCCESSION MASS-SPECTROMETRY GONGGA MOUNTAIN CARBON CHRONOSEQUENCE FOREFIELD CHEMISTRY BACTERIAL |
| Subject Area | Environmental Sciences & Ecology |
| DOI | 10.1016/j.scitotenv.2023.163171 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000976387900001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/13453 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Chinese Acad Sci, Chengdu Inst Biol, China Croatia Belt & Rd Joint Lab Biodivers & Ecos, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliza, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 3.RUDN Univ, Peoples Friendship Univ Russia, Moscow 117198, Russia 4.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China 5.Chengdu Popularizat Agr Tech Stn, Chengdu 610041, Peoples R China 6.Sichuan Agr Univ, Coll Resources, Chengdu 611130, Peoples R China 7.Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 621010, Peoples R China 8.Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia 9.Chinese Acad Sci, Chengdu Inst Biol, Number 9 Renmin South Rd, Chengdu 610041, Sichuan, Peoples R China |
| Recommended Citation GB/T 7714 | Shen, Jie,Liang, Ziyan,Kuzyakov, Yakov,et al. Dissolved organic matter defines microbial communities during initial soil formation after deglaciation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,878(x):-. |
| APA | Shen, Jie.,Liang, Ziyan.,Kuzyakov, Yakov.,Li, Weitao.,He, Yuting.,...&Lei, Yanbao.(2023).Dissolved organic matter defines microbial communities during initial soil formation after deglaciation.SCIENCE OF THE TOTAL ENVIRONMENT,878(x),-. |
| MLA | Shen, Jie,et al."Dissolved organic matter defines microbial communities during initial soil formation after deglaciation".SCIENCE OF THE TOTAL ENVIRONMENT 878.x(2023):-. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Dissolved organic ma（3047KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment