Bu ders öğrencilere, bitkilerin inorganik azotu
topraktan almalarından başlayıp, azotun bitki hücrelerinde asimilasyonuna kadar
geçen bütün metabolik aşamaları ileri düzeyde öğretmeyi amaçlar.
This course aims to teach students all metabolic
stages of nitrogen (N) assimilation in plants, from the uptake of nitrogen from
the soil to its assimilation in plant cells. Biological organisms including
plants need nitrogen (N) because it is a component of the amino acids for all
proteins and the nucleic acids such as DNA and RNA. For N atoms in dinitrogen
are bound by a very strong triple bond, this gas is very stable and cannot be
utilized as a source of nutrition by plants but a few highly specialized
microorganisms. Molecular N2 is the major component (78%) of the
earth's atmosphere but most organisms cannot use free nitrogen, to build the
chemicals required for growth and reproduction. Before its incorporation into
plants, N2 must first be assimilated in the form of NH4
or NO3 ions. This process of reduction of N2, commonly
known as nitrogen fixation.