Microbial functional diversity across biogeochemical provinces in the central Pacific Ocean.
Microbial functional diversity across biogeochemical provinces in the central Pacific Ocean.
复制标题
中太平洋生物地球化学省的微生物功能多样性。
DOI:
10.1073/pnas.2200014119
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发表时间:
2022-09-13
影响因子:
11.1
通讯作者:
Saito, Mak A.
中科院分区:
文献类型:
--
作者:
Saunders, Jaclyn K.;McIlvin, Matthew R.;Dupont, Chris L.;Kaul, Drishti;Moran, Dawn M.;Horner, Tristan;Laperriere, Sarah M.;Webb, Eric A.;Bosak, Tanja;Santoro, Alyson E.;Saito, Mak A.
Enzymatic proteins are the engines of life, generating energy, fixing CO2 into organic matter, and building biomass. At scale, these biological catalysts have the power to drive global elemental cycles. These microbial machines were responsible for the oxygenation of the atmosphere, can mediate the formation and destruction of greenhouse gases, and potentially influence cloud formation. Here, we used metaproteomics across the central Pacific Ocean to investigate how microbial protein distributions change across vertical and horizontal scales, identify interactions among microbial consortia, and characterize metabolic hot spots in line with major geochemical features. These observations provide insights into microbial community dynamics and can act as empirical constraints for biogeochemical ecosystem models to improve understanding of microbial interactions on a changing planet. Enzymes catalyze key reactions within Earth’s life-sustaining biogeochemical cycles. Here, we use metaproteomics to examine the enzymatic capabilities of the microbial community (0.2 to 3 µm) along a 5,000-km-long, 1-km-deep transect in the central Pacific Ocean. Eighty-five percent of total protein abundance was of bacterial origin, with Archaea contributing 1.6%. Over 2,000 functional KEGG Ontology (KO) groups were identified, yet only 25 KO groups contributed over half of the protein abundance, simultaneously indicating abundant key functions and a long tail of diverse functions. Vertical attenuation of individual proteins displayed stratification of nutrient transport, carbon utilization, and environmental stress. The microbial community also varied along horizontal scales, shaped by environmental features specific to the oligotrophic North Pacific Subtropical Gyre, the oxygen-depleted Eastern Tropical North Pacific, and nutrient-rich equatorial upwelling. Some of the most abundant proteins were associated with nitrification and C1 metabolisms, with observed interactions between these pathways. The oxidoreductases nitrite oxidoreductase (NxrAB), nitrite reductase (NirK), ammonia monooxygenase (AmoABC), manganese oxidase (MnxG), formate dehydrogenase (FdoGH and FDH), and carbon monoxide dehydrogenase (CoxLM) displayed distributions indicative of biogeochemical status such as oxidative or nutritional stress, with the potential to be more sensitive than chemical sensors. Enzymes that mediate transformations of atmospheric gases like CO, CO2, NO, methanethiol, and methylamines were most abundant in the upwelling region. We identified hot spots of biochemical transformation in the central Pacific Ocean, highlighted previously understudied metabolic pathways in the environment, and provided rich empirical data for biogeochemical models critical for forecasting ecosystem response to climate change.
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影响因子:
2.2
作者:
Kobayashi S;Hira D;Yoshida K;Toyofuku M;Shida Y;Ogasawara W;Yamaguchi T;Araki N;Oshiki M
通讯作者:
Oshiki M
影响因子:
64.8
作者:
Harris CR;Millman KJ;van der Walt SJ;Gommers R;Virtanen P;Cournapeau D;Wieser E;Taylor J;Berg S;Smith NJ;Kern R;Picus M;Hoyer S;van Kerkwijk MH;Brett M;Haldane A;Del Río JF;Wiebe M;Peterson P;Gérard-Marchant P;Sheppard K;Reddy T;Weckesser W;Abbasi H;Gohlke C;Oliphant TE
通讯作者:
Oliphant TE
DOI:
10.1038/ismej.2017.148
发表时间:
2018-01
期刊:
The ISME journal
影响因子:
--
作者:
Eyice Ö;Myronova N;Pol A;Carrión O;Todd JD;Smith TJ;Gurman SJ;Cuthbertson A;Mazard S;Mennink-Kersten MA;Bugg TD;Andersson KK;Johnston AW;Op den Camp HJ;Schäfer H
通讯作者:
Schäfer H
DOI:
10.1038/s41396-020-00828-3
发表时间:
2021-04
期刊:
The ISME journal
影响因子:
--
作者:
Bayer B;Saito MA;McIlvin MR;Lücker S;Moran DM;Lankiewicz TS;Dupont CL;Santoro AE
通讯作者:
Santoro AE
DOI:
10.1073/pnas.0506625102
发表时间:
2005-10-11
影响因子:
11.1
作者:
Francis, CA;Roberts, KJ;Oakley, BB
通讯作者:
Oakley, BB