RESPIRATION ACTIVITY IN FLEXIBACTER CHINENSIS UNDER STARVATION STRESS

Document Type: Regular Paper

Authors

1 National Institute for Genetic Engineering and Biotechnology (NIGEB), Tehran, 14155-6343 I. R. of Iran,

2 National Institute for Genetic Engineering and Biotechnology (NIGEB), Tehran, 14155-6343 I. R. of Iran

3 Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK

Abstract

Electron transport system (ETS) activity was found to be related to the initial inoculum size,
culturability and viability of E. coli. In this experiment, ETS activity of Flexibacter chinensis was measured
by INT-method under a variety of conditions such as starvation media with different amendments and
different temperatures. The relation between ETS activity, cell culturability, and viability was investigated.
We found that the addition of glucose increased ETS activity without affecting cell culturability. Urea
addition led to an increase in survival, but did not increase ETS activity.

Keywords