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Prokaryotes constitute the majority of sedimentary biomass, where they cycle organic carbon and regulate organic matter transformation. The microbes inhabiting sediment are diverse, and the factors controlling microbial community composition are not fully understood. Here, we characterized the prokaryotic community using 16S rRNA gene sequencing in 24 stratigraphic layers within a 89 cm (dated to ~1900 years old) sediment core from an anchialine sinkhole in the Bahamas with a stratified water column and anoxic bottom water. The microbial community was dominated by members of the Alphaproteobacteria, Dehalococcoidia, Gammaproteobacteria, Bathyarchaeota, and Campylobacter classes. Most interestingly, subsurface microbial community structure could be correlated to previous evidence for timewise changes in the main source of organic matter that was supplied to the sediment accumulating during the last 2000 years, which itself was caused by regional terrestrial vegetation changes. The C:N r
A slew of Indian American and South Asian students are among the 40 finalists named by the Regeneron Pharmaceuticals and Society in their Science Talent Search, the nation’s oldest and
79 Indian-American including some South Asian Teens Named Nation s Top Scientists newsindiatimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from newsindiatimes.com Daily Mail and Mail on Sunday newspapers.
Society for Science Jan. 6 announced the top 300 scholars in the Regeneron Science Talent Search 2022, the nation’s oldest and most prestigious science and math competition for high school