AUTHOR=Chen Ying , Wang Fengping 

TITLE=Insights on nitrate respiration by Shewanella

JOURNAL=Frontiers in Marine Science

VOLUME=1

YEAR=2015

URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2014.00080

DOI=10.3389/fmars.2014.00080

ISSN=2296-7745

ABSTRACT=<p>Shewanellae are well known for their ability to utilize a number of electron acceptors and are therefore considered to have important roles in element cycling in the environment, such as nitrogen cycling through dissimilatory nitrate reduction to ammonia (DNRA) and denitrification. Possessing two periplasmic nitrate reductase systems (NAP-α and NAP-β) is a special trait of the <italic>Shewanella</italic> genus, and both enzymes are likely to provide selective advantage to the host. This review relates the current knowledge and aspects of the nitrate respiration system of <italic>Shewanella</italic>. Specifically, the potential physiological functions and regulation mechanisms of the duo-NAP system are discussed in addition to the evolution of anaerobic respiration systems of <italic>Shewanella</italic>.</p>