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Nitrogen assimilation by a Citrus tree
Author(s) -
KATO TADASHI
Publication year - 1980
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1980.tb04467.x
Subject(s) - citrus unshiu , assimilation (phonology) , ammonium , chemistry , nitrogen assimilation , nitrogen , glutamine , nitrate , ammonium nitrate , proline , botany , amino acid , biology , biochemistry , organic chemistry , linguistics , philosophy
Primary assimilation of 15 N‐ammonium or 15 N‐nitrate by excised leaves of satsuma mandarin ( Citrus unshiu Markovitch) was examined under light and dark conditions. Under both conditions both types of nitrogen were most markedly incorporated into glutamine‐amide nitrogen in the primary step of the assimilation, and into proline in the later steps. Incorporation of ammonium or nitrate into amino acids was more active in the light than in the dark, although the stimulating effect of light on the incorporation was relatively small in both cases.