Abstract
Changes in the activities of peroxidase, ascorbate peroxidase, catalase and superoxide dismutase in rice in response to infection by Rhizoctonia solani were studied. A significant increase in peroxidase activity was observed in R. solani-inoculated rice leaf sheaths 1 day after inoculation and the maximum enzyme activity was recorded 3 days after inoculation at which period a 3-fold increase in peroxidase activity was observed compared to the untreated control. Three peroxidase isozymes viz., PO-4, PO-5 and PO-6 were induced in rice upon infection by R. solani. Ascorbate peroxidase and catalase activities significantly increased 1-2 days after inoculation and the maximum enzyme activities were recorded 5 days after inoculation. Superoxide dismutase activity increased significantly 2 days after inoculation and increased progressively, reaching four times the control value at 7 days after inoculation.
Original language | English |
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Pages (from-to) | 91-96 |
Number of pages | 6 |
Journal | Acta Physiologiae Plantarum |
Volume | 25 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2003 |
Externally published | Yes |
Keywords
- Ascorbate peroxidase
- Catalase
- Oryza sativa
- Peroxidase
- Rhizoctonia solani
- Superoxide dismutase
ASJC Scopus subject areas
- Physiology
- Agronomy and Crop Science
- Plant Science