Pyrimidine derivatives in higher plants
โ Scribed by E.G. Brown
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 108 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0031-9422
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๐ SIMILAR VOLUMES
Triterpenoids are widespread in the subsurface where they occur under various forms (ahcanes, alkenes. aromatic hydrocarbons, acids... ) resulting from the geological transformations of their precursors present in Irving organisms. They are mainly derived from hopanoids of bactenal ongin and from mt
ATP-sulphurylase was detected m extracts of roots and leaves of several species of higher plant. The enzyme occurs in the supernatant fraction, has a pH optimum of 8.0 and an absolute requirement for Mg ~+ ions. Sulphurylase activity is inhibited by selenate and molybdate but not by eysteine, methio