OXYGEN-DEPENDENT ASSIMILATION OF NITRATE BY BACILLUS FOLYMYXA

Assimilation of nitrate by yeasts.

Nitrate assimilation has received much attention in filamentous fungi and plants but not so much in yeasts. Recently the availability of classical genetic and molecular biology tools for the yeast Hansenula polymorpha has allowed the advance of the study of this metabolic pathway in yeasts. The genes YNT1, YNR1 and YNI1, encoding respectively nitrate transport, nitrate reductase and nitrite red...

Oxidative assimilation by Bacillus subtilis.

It is a common observation that the oxidation of many substrates is not carried to completion by various species of microorganisms and that instead a portion of the substrate is assimilated by the cells. In those species possessing a high level of endogenous respiration and in which the rate of respiration is not increased markedly following the addition of a utilizable substrate, oxygen consum...

Nitrate assimilation in Chlamydomonas.

Nitrate assimilation in Lotus japonicus.

This paper summarizes some recent advances in the understanding of nitrate assimilation in the model legume Lotus japonicus. First, different types of experimental evidence are presented that emphasize the importance of the root in the nitrate-reducing assimilatory processes in this plant. Secondly, the main results from an ethyl methanesulphonate mutagenesis programme are presented. In this pr...

Steady state analysis of nitrate-ammonium assimilation by phytoplankter? 2

The ammonium:nitrate delivery ratio to cells of Dunaliella tertiolecta in continuous culture had no effect on the ambient nitrate concentrations at steady state, indicating that the assimilation of these radicals is competitive, not suppressive, under nitrogen limiting conditions. The physiological parameters, C : cell and Chl: cell, were invariant over the range of delivery ratios. Cellular gr...