THE ISOLATION AND CULTURE OF THE NITRIFYING ORGANISMS: PART I. NITROBACTER

Abstract

It has been found that two factors, accumulation of nitrate and inadequate aeration, seriously limit the growth of Nitrobacter under classical culture conditions. Techniques are described in which the effect of these factors is minimized and by which pure cultures of Nitrobacter, with cell densities at least 10 times the normal maximum, are easily and rapidly obtained.