Sentence examples for an essential nitrogen from inspiring English sources

The availability of nitrogen is one of the most limiting factors for plant growth and fixed nitrogen from the legume/rhizobial symbiosis provides an essential nitrogen source for agriculture and natural ecosystems.

Through donation of its amide group and its conversion to glutamic acid, glutamine serves as an essential nitrogen donor in three autonomous enzymatic reactions responsible for purine synthesis and in two responsible for pyrimidine synthesis.

More importantly, monophlebids feed on plant sap, which is a poor source of essential nitrogen compounds (Sandström and Moran 1999).

The use of protein hydrolysates in these products is based on the premise that predigested proteins, when fed as amino acids and peptides, provide essential nitrogen in a non-antigenic, easily absorbed form.

Their enzymes for taking up essential nitrogen in the form of nitrate are built around an iron atom and a molybdenum atom.

An unpredictable food supply, scant access to soil and the essential nitrogen it holds: no wonder young roaches must know how to scam.

Although the fixation of atmospheric nitrogen is an essential part of the nitrogen cycle, ammonification and nitrification are the predominant methods by which organic nitrogen is prevented from returning to the atmosphere and is kept cycling through the biosphere.

Furthermore, this member of the poplar GS family exhibited the highest levels of gene expression suggesting it plays an essential role in nitrogen metabolism.

Nitrification, the biological oxidation of ammonium to nitrite and nitrate, is an essential process in nitrogen cycling and wastewater treatment bioreactors.

PtGS2 transcripts were mainly localized in the lamina and parenchyma cells of leaves and found at much lower level in the vascular bundles, which suggest that it plays an essential role in nitrogen metabolism associated with photosynthetic activity [ 13, 14].

The primary effect of N deprivation is the reduced availability of nitrogen, an essential nutrient for de novo synthesis of amino acids, nucleic acids and various other cellular constituents.