FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4225639639> ?p ?o ?g. }

• W4225639639 abstract "Microbial nitrification is a critical process governing nitrogen availability in aquatic systems. Freshwater nitrifiers have received little attention, leaving many unanswered questions about their taxonomic distribution, functional potential, and ecological interactions. Here, we reconstructed genomes to infer the metabolism and ecology of free-living picoplanktonic nitrifiers across the Laurentian Great Lakes, a connected series of five of Earth's largest lakes. Surprisingly, ammonia-oxidizing bacteria (AOB) related to Nitrosospira dominated over ammonia-oxidizing archaea (AOA) at nearly all stations, with distinct ecotypes prevailing in the transparent, oligotrophic upper lakes compared to Lakes Erie and Ontario. Unexpectedly, one ecotype of Nitrosospira encodes proteorhodopsin, which could enhance survival under conditions where ammonia oxidation is inhibited or substrate limited. Nitrite-oxidizing bacteria (NOB) Candidatus Nitrotoga and Nitrospira fluctuated in dominance, with the latter prevailing in deeper, less-productive basins. Genome reconstructions reveal highly reduced genomes and features consistent with genome streamlining, along with diverse adaptations to sunlight and oxidative stress and widespread capacity for organic nitrogen use. Our findings expand the known functional diversity of nitrifiers and establish their ecological genomics in large lake ecosystems. By elucidating links between microbial biodiversity and biogeochemical cycling, our work also informs ecosystem models of the Laurentian Great Lakes, a critical freshwater resource experiencing rapid environmental change. IMPORTANCE Microorganisms play critical roles in Earth's nitrogen cycle. In lakes, microorganisms called nitrifiers derive energy from reduced nitrogen compounds. In doing so, they transform nitrogen into a form that can ultimately be lost to the atmosphere by a process called denitrification, which helps mitigate nitrogen pollution from fertilizer runoff and sewage. Despite their importance, freshwater nitrifiers are virtually unexplored. To understand their diversity and function, we reconstructed genomes of freshwater nitrifiers across some of Earth's largest freshwater lakes, the Laurentian Great Lakes. We discovered several new species of nitrifiers specialized for clear low-nutrient waters and distinct species in comparatively turbid Lake Erie. Surprisingly, one species may be able to harness light energy by using a protein called proteorhodopsin, despite the fact that nitrifiers typically live in deep dark water. Our work reveals the unique biodiversity of the Great Lakes and fills key gaps in our knowledge of an important microbial group, the nitrifiers." @default.
• W4225639639 created "2022-05-05" @default.
• W4225639639 creator A5000415572 @default.
• W4225639639 creator A5002807962 @default.
• W4225639639 creator A5037120129 @default.
• W4225639639 creator A5078351589 @default.
• W4225639639 date "2022-06-28" @default.
• W4225639639 modified "2023-10-11" @default.
• W4225639639 title "Genome Streamlining, Proteorhodopsin, and Organic Nitrogen Metabolism in Freshwater Nitrifiers" @default.
• W4225639639 cites W1488872032 @default.
• W4225639639 cites W1584790813 @default.
• W4225639639 cites W1590141371 @default.
• W4225639639 cites W1845405292 @default.
• W4225639639 cites W1918192518 @default.
• W4225639639 cites W1924987555 @default.
• W4225639639 cites W1952026831 @default.
• W4225639639 cites W1956297315 @default.
• W4225639639 cites W1958058086 @default.
• W4225639639 cites W1963957860 @default.
• W4225639639 cites W1965026439 @default.
• W4225639639 cites W1967623924 @default.
• W4225639639 cites W1979230311 @default.
• W4225639639 cites W1981640528 @default.
• W4225639639 cites W1987490818 @default.
• W4225639639 cites W1991235980 @default.
• W4225639639 cites W1998840349 @default.
• W4225639639 cites W2015970680 @default.
• W4225639639 cites W2016298022 @default.
• W4225639639 cites W2017911769 @default.
• W4225639639 cites W2020126175 @default.
• W4225639639 cites W2020324273 @default.
• W4225639639 cites W2022440255 @default.
• W4225639639 cites W2023324972 @default.
• W4225639639 cites W2029267744 @default.
• W4225639639 cites W2030207143 @default.
• W4225639639 cites W2032670022 @default.
• W4225639639 cites W2033054377 @default.
• W4225639639 cites W2034285706 @default.
• W4225639639 cites W2038833563 @default.
• W4225639639 cites W2053399270 @default.
• W4225639639 cites W2054187688 @default.
• W4225639639 cites W2055232346 @default.
• W4225639639 cites W2058634232 @default.
• W4225639639 cites W2063168105 @default.
• W4225639639 cites W2069480047 @default.
• W4225639639 cites W2072241820 @default.
• W4225639639 cites W2072590703 @default.
• W4225639639 cites W2075468739 @default.
• W4225639639 cites W2076385158 @default.
• W4225639639 cites W2079905572 @default.
• W4225639639 cites W2085926377 @default.
• W4225639639 cites W2088082576 @default.
• W4225639639 cites W2088818920 @default.
• W4225639639 cites W2096093282 @default.
• W4225639639 cites W2101291993 @default.
• W4225639639 cites W2102619694 @default.
• W4225639639 cites W2102652793 @default.
• W4225639639 cites W2103115373 @default.
• W4225639639 cites W2103901746 @default.
• W4225639639 cites W2108375169 @default.
• W4225639639 cites W2109507782 @default.
• W4225639639 cites W2112364185 @default.
• W4225639639 cites W2112438501 @default.
• W4225639639 cites W2113475314 @default.
• W4225639639 cites W2115921802 @default.
• W4225639639 cites W2117131162 @default.
• W4225639639 cites W2117457769 @default.
• W4225639639 cites W2120902911 @default.
• W4225639639 cites W2121139063 @default.
• W4225639639 cites W2124844742 @default.
• W4225639639 cites W2125230147 @default.
• W4225639639 cites W2125454787 @default.
• W4225639639 cites W2127774996 @default.
• W4225639639 cites W2132926880 @default.
• W4225639639 cites W2135394573 @default.
• W4225639639 cites W2135550091 @default.
• W4225639639 cites W2140525159 @default.
• W4225639639 cites W2140551328 @default.
• W4225639639 cites W2141052558 @default.
• W4225639639 cites W2142678478 @default.
• W4225639639 cites W2143485490 @default.
• W4225639639 cites W2149826483 @default.
• W4225639639 cites W2151114555 @default.
• W4225639639 cites W2152492312 @default.
• W4225639639 cites W2152885278 @default.
• W4225639639 cites W2153325555 @default.
• W4225639639 cites W2153867876 @default.
• W4225639639 cites W2155350436 @default.
• W4225639639 cites W2155704095 @default.
• W4225639639 cites W2159384236 @default.
• W4225639639 cites W2163066505 @default.
• W4225639639 cites W2165259257 @default.
• W4225639639 cites W2166123725 @default.
• W4225639639 cites W2170551349 @default.
• W4225639639 cites W2171777099 @default.
• W4225639639 cites W2172106300 @default.
• W4225639639 cites W2172210212 @default.
• W4225639639 cites W2173732482 @default.
• W4225639639 cites W2178043251 @default.
• W4225639639 cites W2186906700 @default.

• next