SOME INTERRELATIONSHIPS IN GENERAL NITROGEN METABOLISM

Interrelationships of Calcium, Nitrogen, and Phosphorus in Vegetable Crops.

Coincident with the rapid advances being made in soil science, an increasing interest has been shown in the soil mechanisms as they control plant nutrition, growth, and crop production. One of the most influential factors involved is that of the interaction of nutrients. The equilibrium among ions in the soil and the culture solution has lately been designated as "nutrientelement balance. " Emp...

Some observations about retinal vascular-neuronal interrelationships.

The relationship between the intraretinal vessels of the human fundus and the surrounding neuronal tissue is discussed with regard to various disease states. Present evidence suggests that primary retinal neuronal death does not lead to secondary retinal capillary death. Primary retinal capillary non-perfusion generally leads to concomitant retinal neuronal degeneration, but if the occlusion ta...

Nitrogen metabolism in sheep.

I. 15NH4C1 was continuously infused for periods of 120-216 h into the rumens of sheep which were allowed to feed 2 out of every 10 min. These treatments achieved steady metabolic states and allowed the assessment of nitrogen conversions by means of tracer methodology. The sheep were given either a barley diet or one of three hay diets. In two trials, the flow of abomasal material was determined...

Nitrogen metabolism in haloarchaea

The nitrogen cycle (N-cycle), principally supported by prokaryotes, involves different redox reactions mainly focused on assimilatory purposes or respiratory processes for energy conservation. As the N-cycle has important environmental implications, this biogeochemical cycle has become a major research topic during the last few years. However, although N-cycle metabolic pathways have been studi...

Nitrogen Metabolism in Phytoplankton