Project description:In this experiment, we used advanced proteomics techniques to discern differences in energy allocation between three strains of ammonia oxidizing bacteria: Nitrosomonas europaea, Nitrosomonas ureae, and Nitrosospira multiformis, during ammonia starved and ammonia replete conditions. Replicate cultures in late log phase from the three strains were starved of ammonia for 24 hours and compared to replicate control cultures grown for the same period. All three species were grown with three biological replicates for each condition and species with the exception of two replicates from the N. ureae starved cultures due to sample processing loss. This study has, to our knowledge, produced the first complete proteomes of Nitrosospira multiformis and Nitrosomonas ureae.

2018-05-16 | PXD008954 | Pride

Ammonia oxidizing bacteria in plant seeds

Project description:Ammonia oxidizing bacteria in Elymus seeds of 4 locations raw sequence reads

| PRJNA632329 | ENA

Complete ammonia-oxidizing bacteria (comammox)

Project description:Complete ammonia-oxidizing bacteria (comammox) Raw sequence reads

| PRJNA1158330 | ENA

Complete ammonia-oxidizing bacteria (comammox)

Project description:Complete ammonia-oxidizing bacteria (comammox) Raw sequence reads

| PRJNA1158332 | ENA

ammonia oxidizing bacteria of reservoir sediment

Project description:ammonia oxidizing bacteria of sediment Raw sequence reads

| PRJNA558444 | ENA

ammonia oxidizing bacteria of reservoir sediment

Project description:ammonia oxidizing bacteria of sediment Raw sequence reads

| PRJNA609392 | ENA

Acidification alters the composition of ammonia oxidizing microbial assemblages in marine mesocosms

Project description:Increasing atmospheric CO2 concentrations are causing decreased pH over vast expanses of the ocean. This decreasing pH may alter biogeochemical cycling of carbon and nitrogen via the microbial process of nitrification, a key process that couples these cycles in the ocean, but which is often sensitive to acidic conditions. Recent reports indicate a decrease in oceanic nitrification rates under experimentally lowered pH. How composition and abundance of ammonia oxidizing bacteria (AOB) and archaea (AOA) assemblages respond to decreasing oceanic pH, however, is unknown. We sampled microbes from two different acidification experiments and used a combination of qPCR and functional gene microarrays for the ammonia monooxygenase gene (amoA) to assess how acidification alters the structure of ammonia oxidizer assemblages. We show that despite widely different experimental conditions, acidification consistently altered the community composition of AOB by increasing the relative abundance of taxa related to the Nitrosomonas ureae clade. In one experiment this increase was sufficient to cause an increase in the overall abundance of AOB. There were no systematic shifts in the community structure or abundance of AOA in either experiment. These different responses to acidification underscore the important role of microbial community structure in the resiliency of marine ecosystems. SUBMITTER_CITATION: Title: Acidification alters the composition of ammonia oxidizing microbial assemblages in marine mesocosms Journal: Marine Ecology Progress Series Issue: 492 Pages: 1-8 DOI: 10.3354/meps 10526 Authors: Jennifer L Bowen Patrick J Kearns Michael Holcomb Bess B Ward

2013-08-27 | GSE49956 | GEO

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