Search results for "Allantoic acid"
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Üher den Ureidstoffwechsel heim Lauhmoosprotonema von Funaria hygrometrica L. (SIBTH.)
1974
Summary The uptake of allantoine-7- 14 C by moss protonema grown in submerged culture is controlled by light and by the degree of catabolisation within the cell. The rate of uptake was enhanced by the application of ATP + glucose to the medium of a dark grown culture. The degradation products of allantoine-7- 14 C in light grown protonema are allantoic acid and urea. Urea is degraded in the Henseleit-Krebs-cycle to ornithine, citrulline and arginine. Urea is a further source of radioactive CO 2 . In darkness, the single product of allantoine degradation is allantoic acid. Allantoicase is blocked in the dark but the metabolism can be activated by the application of ATP or ATP + glucose to th…
Über den Ureidstoffwechsel beim Laubmoosprotonema von Funaria hygrometrica L. (Sibth.)
1973
Summary 1. Allantoin and allantoic acid were about 6 % of the total nitrogen content of moss protonema (Funaria hygrornetica L.). 2. The level of endogenous allantoin depends on the spectrum colour of the irradiation. The peaks coincide with the peaks of a chlorophyll absorption spectrum from a methanolic extract of moss protonema. 3. The total amount of allan to in consists of two parts. One part is supplied by metabolism in darkness but the main one depends on light. Green- and far red light are “physiological dark conditions” for the moss protonema. In the dark ureide degradation comes to an end with allantoic acid. There are only traces of urea. 4. The coinciding correlations between th…