Digital Commons Network^™

Bacterial And Archaeal Specific-Predation In The North Atlantic Basin, Lm Seyler, S Tuorto, Lr Mcguinness, Dl Gong, Lj Kerkof

VIMS Articles

Stable isotope probing (SIP) was used to track prokaryotic and eukaryotic carbon uptake along a meridional transect (Long. 52°W) in the North Atlantic to assess if ¹³C-resource partitioning between bacteria and archaea and ¹³C-labeled eukaryotic predators could be detected. One-liter SIP microcosms were amended with ¹³C-acetate or ¹³C-urea and incubated for 48 h. Our data indicated archaea often outcompeted bacteria for ¹³C-urea while both archaea and bacteria could incorporate ¹³C-acetate. This ¹³C label could also be tracked into eukaryotic microbes. The largest number of ¹³C-labeled eukaryotic OTUs, and the greatest percentage of …