FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4281564516> ?p ?o ?g. }

• W4281564516 abstract "Oxygen minimum zones (OMZs) have been suggested as a suitable niche for the oxygen-sensitive process of biological fixation of dinitrogen (N 2 ) gas. However, most N 2 fixation rates reported from such waters are low. This low N 2 fixation activity has been proposed to result from the unusual community of N 2 fixers, in which cyanobacteria were typically underrepresented. The Northern Benguela Upwelling System (North BUS) is part of one of the most productive marine ecosystems and hosts a well-developed OMZ. Although previous observations indicated low to absent N 2 fixation rates, the community composition of diazotrophs needed to understand the North BUS has not been described. Here, we present a first detailed analysis of the diazotrophic diversity in the North BUS OMZ and the Angola tropical zone (ATZ), based on genetic data and isotope speciation. Consistent with a previous study, we detected a slight N deficit in the OMZ, but isotope data did not indicate any active or past N 2 fixation. The diazotroph community in the North BUS was dominated by non-cyanobacterial microbes clustering with members of gamma-proteobacteria, as is typical for other OMZ regions. However, we found a strikingly high diversity of Cluster III diazotrophs not yet described in other OMZs. In contrast to previous observations, we could also identify cyanobacteria of the clades Trichodesmium sp., UCYN-A and Cyanothece sp., in surface waters connected to or above the OMZ, which were potentially active as shown by the presence of genes and transcripts of the key functional marker gene for N 2 fixation, nifH . While the detection of diazotrophs and the absence of active N 2 fixation (based on isotopic speciation) are consistent with other OMZ observations, the detected regional variation in the diversity and presence of cyanobacteria indicate that we still are far from understanding the role of diazotrophs in OMZs, which, however, is relevant for understanding the N cycle in OMZ waters, as well for predicting the future development of OMZ biogeochemistry in a changing ocean." @default.
• W4281564516 created "2022-05-27" @default.
• W4281564516 creator A5003302071 @default.
• W4281564516 creator A5052238773 @default.
• W4281564516 creator A5058095094 @default.
• W4281564516 creator A5073125024 @default.
• W4281564516 creator A5074182727 @default.
• W4281564516 creator A5086062682 @default.
• W4281564516 date "2022-05-26" @default.
• W4281564516 modified "2023-09-26" @default.
• W4281564516 title "High Diazotrophic Diversity but Low N2 Fixation Activity in the Northern Benguela Upwelling System Confirming the Enigma of Nitrogen Fixation in Oxygen Minimum Zone Waters" @default.
• W4281564516 cites W1490878262 @default.
• W4281564516 cites W1593348032 @default.
• W4281564516 cites W1607029647 @default.
• W4281564516 cites W1609595954 @default.
• W4281564516 cites W1649415996 @default.
• W4281564516 cites W1661050252 @default.
• W4281564516 cites W1794309134 @default.
• W4281564516 cites W1821619417 @default.
• W4281564516 cites W1917662416 @default.
• W4281564516 cites W1966415834 @default.
• W4281564516 cites W1975196397 @default.
• W4281564516 cites W1975890284 @default.
• W4281564516 cites W1994796172 @default.
• W4281564516 cites W1999818691 @default.
• W4281564516 cites W2000793063 @default.
• W4281564516 cites W2003177272 @default.
• W4281564516 cites W2009516735 @default.
• W4281564516 cites W2013302273 @default.
• W4281564516 cites W2019183229 @default.
• W4281564516 cites W2024540858 @default.
• W4281564516 cites W2025254507 @default.
• W4281564516 cites W2027883024 @default.
• W4281564516 cites W2027989095 @default.
• W4281564516 cites W2032292978 @default.
• W4281564516 cites W2040593023 @default.
• W4281564516 cites W2045126558 @default.
• W4281564516 cites W2058233701 @default.
• W4281564516 cites W2059729107 @default.
• W4281564516 cites W2061255063 @default.
• W4281564516 cites W2067550833 @default.
• W4281564516 cites W2067685672 @default.
• W4281564516 cites W2069387267 @default.
• W4281564516 cites W2074679036 @default.
• W4281564516 cites W2078501977 @default.
• W4281564516 cites W2083819749 @default.
• W4281564516 cites W2084022052 @default.
• W4281564516 cites W2085573027 @default.
• W4281564516 cites W2090254593 @default.
• W4281564516 cites W2090514205 @default.
• W4281564516 cites W2092709528 @default.
• W4281564516 cites W2096239732 @default.
• W4281564516 cites W2102680356 @default.
• W4281564516 cites W2105341814 @default.
• W4281564516 cites W2108718991 @default.
• W4281564516 cites W2111047819 @default.
• W4281564516 cites W2111298353 @default.
• W4281564516 cites W2122571325 @default.
• W4281564516 cites W2127112950 @default.
• W4281564516 cites W2127536995 @default.
• W4281564516 cites W2128603648 @default.
• W4281564516 cites W2130973755 @default.
• W4281564516 cites W2139732915 @default.
• W4281564516 cites W2150210260 @default.
• W4281564516 cites W2160200822 @default.
• W4281564516 cites W2161516641 @default.
• W4281564516 cites W2180418843 @default.
• W4281564516 cites W2193183749 @default.
• W4281564516 cites W2332139698 @default.
• W4281564516 cites W2476387639 @default.
• W4281564516 cites W2518944437 @default.
• W4281564516 cites W2528176786 @default.
• W4281564516 cites W2738465850 @default.
• W4281564516 cites W2753786514 @default.
• W4281564516 cites W2769258721 @default.
• W4281564516 cites W2791433246 @default.
• W4281564516 cites W2799524357 @default.
• W4281564516 cites W2904424124 @default.
• W4281564516 cites W2913491728 @default.
• W4281564516 cites W2916167555 @default.
• W4281564516 cites W2922147619 @default.
• W4281564516 cites W2927961455 @default.
• W4281564516 cites W2972877623 @default.
• W4281564516 cites W2988380333 @default.
• W4281564516 cites W2998789083 @default.
• W4281564516 cites W3008829720 @default.
• W4281564516 cites W3009698987 @default.
• W4281564516 cites W3013406288 @default.
• W4281564516 cites W3016339008 @default.
• W4281564516 cites W3018799586 @default.
• W4281564516 cites W3033771474 @default.
• W4281564516 cites W3208142828 @default.
• W4281564516 cites W4206555024 @default.
• W4281564516 cites W4230747895 @default.
• W4281564516 cites W4244168240 @default.
• W4281564516 doi "https://doi.org/10.3389/fmars.2022.868261" @default.
• W4281564516 hasPublicationYear "2022" @default.
• W4281564516 type Work @default.
• W4281564516 citedByCount "1" @default.
• W4281564516 countsByYear W42815645162023 @default.

• next