Neeraja Vajrala

TL;DR: It is shown through combined physiological and stable isotope tracer analyses that NH2OH is both produced and consumed during the oxidation of NH3 to NO2− by Nitrosopumilus maritimus, that consumption is coupled to energy conversion, and that NH 2OH is the most probable product of the archaeal AMO homolog.

TL;DR: Octyne can be useful in short-term assays to discriminate AOA and AOB contributions to soil nitrification.

TL;DR: Global transcriptional and proteomic analyses characterized the response of a model AOA to ammonia starvation, and unexpected cobalamin biosynthesis was upregulated in response to both ammonia starvation and Cu stress, indicating the importance of this cofactor in retaining functional integrity during times of stress.

TL;DR: Fe acquisition-related proteins, such as a number of TonB-dependent Fe-siderophore receptors for ferrichrome and enterobactin and diffusion protein OmpC, were expressed to higher levels under Fe limitation, providing biochemical evidence for adaptation of N. europaea to Fe-limited conditions.

TL;DR: A role in Fe regulation by the Fur protein encoded by N. europaea NE0616 gene is clearly indicated and additional studies are required to fully delineate role of this fur homolog.