Nitrate uptake in Neurospora crassa has been investigated under various conditions of nitrogen nutrition by measuring the rate of disappearance of nitrate from the medium and by determining mycelial nitrate accumulation. The nitrate transport system is induced by either nitrate or nitrite, but is not present in mycelia grown on ammonia or Casamino Acids. The appearance of nitrate uptake activit...

Background & Aims of the Study: Nitrate is one of the most important contaminants in aquatic environments that can leached to water resources from various sources such as sewage, fertilizers and decomposition of organic waste. Reduction of nitrate to nitrite in infant’s blood stream can cause “blue baby” disease in infants. The aim of this study was to evaluate the...

Ž . A water soluble truncated heme domain a tetramer of MWs45 kDa of the tetrameric nitrate reductase complex from the green alga Chlorella Õulgaris has been overexpressed and purified. This truncated heme domain with four identical Ž . subunits has a high redox potential midpoint potential E sq16 mV as compared with other heme-containing 1r2 flavoproteins. We have undertaken a determination of...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The objective of this work is to study reduction of nitrate concentration using zero-valent iron (ZVI) which has its application in permeable reactive barriers (PRBs). Also, to find out effect of concrete penetrating corrosion inhibiting admixture ...