Formation of arginine from ornithine and cyanamide in bush beans (Phaseolus vulgaris) and rape (Brassica napus)
1989
Wunsch, A. | Amberger, A.
The uptake of cyanamide by plants results in an increase of basic free amino acids, especially arginine. The enhanced increase in arginine content by additional doses of ornithine to cyanamide nutrition suggests that the usual synthesis of arginine (along the course: ornithine leads to citrulline leads to arginino succinate) is shortened to ornithine leads to arginine. Additionally, there is a reduced activity of arginase as a consequence of cyanamide application. Cyanamide is obviously metabolized by plants to lysine and histidine, and after supply of ornithine via the nutrient solution incorporated into arginine.
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