You are setting up your own lab, where you plan to study proteobacteria. You have narrowed your research focus and decided that
you are most interested in the role of proteobacteria in the global nitrogen cycle. Which species of proteobacteria should your researchers study? Check all that apply.a. Alphaproteobacteria b. Betaproteobacteria
c. Epsilonproteobacteria
d. Deltaproteobacteria
e. Gammaproteobacteria
The answer is b)Betaproteobacteria and e)Gammaproteobacteria
Explanation:
Nitrification, which is defined as the microbial oxidation of ammonia to form a nitrate, plays an important role in the global nitrogen cycle. There are two different groups of bacteria that can oxidize ammonia, as a first step in the nitrogen cycle. These groups are known as the Beta-proteobacteria (genera <em>Nitrosomonas</em> and <em>Nitrosaspira</em>) and the Gamma-proteobacteria (genus <em>Nitrosococcus</em>).
