The distribution of asparaginase activity in legumes
| Autor: | Edith M. Lees, A.B. Blakeney |
|---|---|
| Rok vydání: | 1970 |
| Předmět: |
Nodule (geology)
Asparaginase Biophysics engineering.material Biochemistry chemistry.chemical_compound Nitrogen Fixation Botany Asparagine Molecular Biology Aspartic Acid Carbon Isotopes biology fungi food and beverages Metabolism Plants biology.organism_classification chemistry Asparagine metabolism Asparaginase activity engineering Bacteria Rhizobium |
| Zdroj: | Biochimica et biophysica acta. 215(1) |
| ISSN: | 0006-3002 |
| Popis: | Legumes have been examined for asparaginase activity, taking into consideration their symbiotic association with bacteria in their nitrogen-fixing nodules. It has been shown that legumes grown without these bacterial asociations can hydrolyse asparagine and that asparaginase is located principally in the roots of the plants. However, in a normally nodulated plant the non-bacteroid portion of the nodule has a high concentration of asparagine, and asparaginase activity is much higher per g of tissue in this part of the nodule than in the remainder of the root section of the plant. Bacteroids from the nodule are also able to hydrolyse asparagine. The possible contribution of the nodule to the asparagine metabolism of the whole plant is discussed. |
| Databáze: | OpenAIRE |
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