Journal of Bioremediation & Biodegradation
Open Access

Research Article

Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Napdeficient Mutant of Paracoccus pantotrophus

Jun Yin^1*, Wes Stevenson¹, Zhiling Guo², Ben Koopman² and Spyros A Svoronos¹

¹Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA

²Department of Environmental Engineering, University of Florida, Gainesville, FL 32611, USA

*Corresponding Author:

Jun Yin
Department of Chemical Engineering
Nuclear Science Building, Room 402
University of Florida, Gainesville, FL 32611-6005, USA
Tel: +3522266574
E-mail: sarayj@ufl.edu

Received date: July 30, 2016; Accepted date: August 09, 2016; Published date: April 22, 2016

Citation: Yin J, Stevenson W, Guo Z, Koopman B, Svoronos SA (2016) Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Nap-deficient Mutant of Paracoccus pantotrophus. J Bioremediat Biodegrad 7:367. doi:10.4172/2155-6199.1000367

Copyright: © 2016 Yin J, et al. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

In this study it is shown that addition of crude protein extract containing either membrane bound nitrate reductase (Nar) or periplasmic nitrate reductase (Nap) shortens the diauxic lag of denitrifying bacteria switched from aerobic to anoxic conditions. The specific growth rate under anoxic conditions, following resumption of exponential growth, was found to be linearly related to the extract dose.

Keywords