دورية أكاديمية
Microbial sulfate reduction and organic sulfur formation in sinking marine particles.
| العنوان: | Microbial sulfate reduction and organic sulfur formation in sinking marine particles. |
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| المؤلفون: | Raven MR; Department of Earth Science, University of California Santa Barbara, Santa Barbara, CA 93106, USA. raven@ucsb.edu., Keil RG; School of Oceanography, University of Washington, Seattle, WA 98195, USA., Webb SM; Stanford Synchrotron Radiation Lightsource, Stanford University, Menlo Park, CA 94025, USA. |
| المصدر: | Science (New York, N.Y.) [Science] 2021 Jan 08; Vol. 371 (6525), pp. 178-181. Date of Electronic Publication: 2020 Dec 17. |
| نوع المنشور: | Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, N.I.H., Extramural |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-9203 (Electronic) Linking ISSN: 00368075 NLM ISO Abbreviation: Science Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Publication: Original Publication: New York, N.Y. : [s.n.] 1880- |
| مستخلص: | Climate change is driving an expansion of marine oxygen-deficient zones, which may alter the global cycles of carbon, sulfur, nitrogen, and trace metals. Currently, however, we lack a full mechanistic understanding of how oxygen deficiency affects organic carbon cycling and burial. Here, we show that cryptic microbial sulfate reduction occurs in sinking particles from the eastern tropical North Pacific oxygen-deficient zone and that some microbially produced sulfide reacts rapidly to form organic sulfur that is resistant to acid hydrolysis. Particle-hosted sulfurization could enhance carbon preservation in sediments underlying oxygen-deficient water columns and serve as a stabilizing feedback between expanding anoxic zones and atmospheric carbon dioxide. A similar mechanism may help explain more-extreme instances of organic carbon preservation associated with marine anoxia in Earth history. (Copyright © 2021, American Association for the Advancement of Science.) |
| معلومات مُعتمدة: | P30 GM133894 United States GM NIGMS NIH HHS |
| تواريخ الأحداث: | Date Created: 20201218 Date Completed: 20210216 Latest Revision: 20210521 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1126/science.abc6035 |
| PMID: | 33335018 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1095-9203 |
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| DOI: | 10.1126/science.abc6035 |