Jump to Main Content
- Cordoba-Pedregosa, M. del C.; Cordoba, F.; Villalba, J.M.; Gonzalez-Reyes, J.A.
- Plant physiology 2003 v.131 no.2 pp. 697-706
- dehydroascorbic acid, etc ; Allium cepa; onions; roots; cell walls; plant extracts; meristems; ascorbic acids; hydrogen peroxide; metabolites; plant proteins; peroxidases; catalase; glutathione reductase (NADPH); enzyme activity; fractionation; purity; chemical constituents of plants; ascorbate peroxidase; glutathione dehydrogenase (ascorbate); Show all 20 Subjects
- ... Onion (Allium cepa) roots growing hydroponically show differential zonal values for intra- (symplastic) and extra- (apoplastic) cellular ascorbate (ASC) and dehydroascorbate (DHA) contents and for related enzyme activities. In whole roots, ASC and DHA concentrations were higher in root apex and meristem and gradually decreased toward the root base. Guaiacol peroxidase, ASC peroxidase, monodehydroa ...
- PubMed Central: