Microbial metabolism changes molecular compositions of riverine dissolved organic matter as regulated by temperature
Copyright © 2022 Elsevier Ltd. All rights reserved..
This study investigated the control of dissolved organic matter (DOM) molecular compositions by microbial community shifts under temperature regulation (range from 5 to 35 °C), using riverine DOM and in situ microorganisms as examples. The functioning of different microbial metabolisms, including the utilization and generation processes, was comprehensively analyzed. Though the overall quantity of DOM was less temperature-affected, more molecules were identified at moderate temperatures (e.g., 15 and 25 °C) and their accumulated mass peak intensities increased with the temperature. The results were ascribed to 1) the microbial production of macromolecular (m/z > 600) CHO, CHON, and CHONS species was stimulated at higher temperatures; 2) the microorganisms consumed more DOM molecules at both higher and lower temperatures; and 3) the simultaneously decreased utilization and increased generation of recalcitrant CHO and CHON molecules with m/z < 600 at higher temperatures. The strong correlations among the temperature, community structures, and DOM chemodiversity suggested that temperature promoted the community evenness to increase the DOM generation. In addition, the higher temperature decreased the abundance of microorganisms that utilized more recalcitrant molecules and produced fewer new molecules (e.g., Proteobacteria, Acinetobacter, and Erythrobacter) while increased others that functioned the opposite (e.g., Verrucomicrobia, Bacteroidetes, and Flavobacterium) to increase the DOM production. The constructed temperature-community-DOM chemistry relationship deepened the molecular-level understanding of DOM variations and provided implications for the warming future.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2022 |
|---|---|
| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:306 |
|---|---|
| Enthalten in: |
Environmental pollution (Barking, Essex : 1987) - 306(2022) vom: 01. Aug., Seite 119416 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Tang, Gang [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Dissolved Organic Matter |
|---|
| Anmerkungen: |
Date Completed 03.06.2022 Date Revised 04.08.2022 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1016/j.envpol.2022.119416 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM340551259 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM340551259 | ||
| 003 | DE-627 | ||
| 005 | 20231226005559.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2022 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.envpol.2022.119416 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1135.xml |
| 035 | |a (DE-627)NLM340551259 | ||
| 035 | |a (NLM)35526649 | ||
| 035 | |a (PII)S0269-7491(22)00630-3 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Tang, Gang |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Microbial metabolism changes molecular compositions of riverine dissolved organic matter as regulated by temperature |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 03.06.2022 | ||
| 500 | |a Date Revised 04.08.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2022 Elsevier Ltd. All rights reserved. | ||
| 520 | |a This study investigated the control of dissolved organic matter (DOM) molecular compositions by microbial community shifts under temperature regulation (range from 5 to 35 °C), using riverine DOM and in situ microorganisms as examples. The functioning of different microbial metabolisms, including the utilization and generation processes, was comprehensively analyzed. Though the overall quantity of DOM was less temperature-affected, more molecules were identified at moderate temperatures (e.g., 15 and 25 °C) and their accumulated mass peak intensities increased with the temperature. The results were ascribed to 1) the microbial production of macromolecular (m/z > 600) CHO, CHON, and CHONS species was stimulated at higher temperatures; 2) the microorganisms consumed more DOM molecules at both higher and lower temperatures; and 3) the simultaneously decreased utilization and increased generation of recalcitrant CHO and CHON molecules with m/z < 600 at higher temperatures. The strong correlations among the temperature, community structures, and DOM chemodiversity suggested that temperature promoted the community evenness to increase the DOM generation. In addition, the higher temperature decreased the abundance of microorganisms that utilized more recalcitrant molecules and produced fewer new molecules (e.g., Proteobacteria, Acinetobacter, and Erythrobacter) while increased others that functioned the opposite (e.g., Verrucomicrobia, Bacteroidetes, and Flavobacterium) to increase the DOM production. The constructed temperature-community-DOM chemistry relationship deepened the molecular-level understanding of DOM variations and provided implications for the warming future | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Dissolved organic matter | |
| 650 | 4 | |a Microbial community | |
| 650 | 4 | |a Microbial metabolism | |
| 650 | 4 | |a Molecular composition | |
| 650 | 4 | |a Proteobacteria | |
| 650 | 4 | |a Temperature | |
| 650 | 7 | |a Dissolved Organic Matter |2 NLM | |
| 700 | 1 | |a Zheng, Xing |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Shiwen |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Binrui |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shuling |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Tong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Bowei |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Chongxuan |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Environmental pollution (Barking, Essex : 1987) |d 1987 |g 306(2022) vom: 01. Aug., Seite 119416 |w (DE-627)NLM087741504 |x 1873-6424 |7 nnns |
| 773 | 1 | 8 | |g volume:306 |g year:2022 |g day:01 |g month:08 |g pages:119416 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.envpol.2022.119416 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 306 |j 2022 |b 01 |c 08 |h 119416 | ||