title: Nar is the dominant dissimilatory nitrate reductase under high pressure conditions in the deep-sea denitrifier Pseudomonas sp. MT-1.
abstract: In this paper, relative nitrate reductase activities of the soluble and membrane fractions of MT-1 grown anaerobically under atmospheric pressure in the presence of 30 mM NaNO3 were measured. In the analyses, the diazocoupling method was employed to determine the concentration of nitrite formed. Follow-up recent experiments have revealed that formed coupling compound lose its color rapidly, but this instability is unusual. The authors recognized the possibility that they failed to quantify the accurate concentration of nitrite formed and agree the additional in-depth analyses should be performed. Thus, the JGAM editorial board agreed to retract the paper.