Nitrogen assimilation is the formation of organic nitrogen compounds like amino acids from inorganic nitrogen compounds present in the environment. Organisms like plants, fungi and certain bacteria that can fix nitrogen gas (N 2) depend on the ability to assimilate nitrate or ammonia for their needs. Other organisms, like animals, depend ...

2021年1月15日 · Assimilation. In nitrogen assimilation, plants finally consume the nitrates made by soil bacteria and use them to make nucleotides, amino acids, and other vital chemicals for life. Plants take up nitrates through their roots and use them …

Nitrates and ammonia resulting from nitrogen fixation are assimilated into the specific tissue compounds of algae and higher plants. Animals then ingest these algae and plants, converting them into their own body compounds.

Nitrogen assimilation is the process by which inorganic nitrogen compounds are used to form organic nitrogen compounds such as amino acids, amides, etc. Plants and other organisms, which cannot utilise nitrogen molecules directly, depend …

2022年5月1日 · In this review, we summarize the function and regulation of these enzymes reported in three major crops—rice, maize, and wheat, also in the model plant Arabidopsis, and we highlight their application in improving NUE of crops via manipulating N assimilation.

2023年8月5日 · In assimilation, plants take up ammonia and incorporate nitrogen into amino acids, nucleic acids, and other vital organic molecules. Plants predominantly assimilate nitrogen through their roots in the form of nitrates (NO 3–) and ammonium ions (NH 4+).

Six key processes compose the nitrogen cycle: assimilation, ammonification, ammonium oxidation, nitrite oxidation, denitrification, and nitrogen fixation. Each transforms one form of nitrogen into another through biological activity.

Nitrogen assimilation and mobilization are crucial processes for the growth and development of perennial species. Modification of the expression of key enzymes in nitrogen metabolism is a reasonable strategy for enhancing growth of forest trees.

The use of nitrogen by plants involves several steps, including uptake, assimilation, translocation and, when the plant is ageing, recycling and remobilization. For crops, NUE has been defined as the grain yield per unit of nitrogen available from the soil, including nitrogen fertilizer.

2021年4月21日 · Nitrogen metabolism of microorganisms is described under three sub-heads in this chapter as assimilation/utilization of inorganic nitrogen, de novo biosynthesis of amino acids and utilization of amino acids both as carbon and nitrogen source.