Peroxidase-activities of 2 Rice Cultivars Differing in Salinity Tolerance As Affected By Proline and Nacl
(1995) Biologia Plantarum : journal for experimental botany — Vol. 37, n° 4, p. 577-586 (1995)
Files
pdfdocument.pdf
Restricted Access - Adobe PDF
- 649.59 KB
Details
- Authors
- Abstract
- Proline content, ion accumulation, cell wall and soluble peroxidase activities were determined in control and salt-treated calli (150 mM NaCl) and whole plants (30 mM NaCl) of two rice cultivars (salt sensitive cv. IKP and salt tolerant cv. Aiwu). Under salinity, the highest accumulation of Na+, Cl- and proline occurred in calli, roots and younger leaves of cv. IKP, coupled with the highest decrease in K+ content; accumulations of Na+ and Cl- were restricted to older leaves in cv. Aiwu. Relative growth rates of calli and roots or shoots from both cultivars were not linked to peroxidase activities: High concentrations (1 M) of exogenously applied glycerol did not inhibit in vitro activities of soluble peroxidase extracted from control and salt-treated calli or plants. Conversely, 35 - 55% (in cv. IKP) or 60 - 80% (in cv. Aiwu) of soluble peroxidase activities were found in presence of isosmotic proline concentration. There were no differences between proline and glycerol effects on in vitro cell wall peroxidase activities.
- Affiliations
Citations
Lutts, S., & Guerrier, G. (1995). Peroxidase-activities of 2 Rice Cultivars Differing in Salinity Tolerance As Affected By Proline and Nacl. Biologia Plantarum : journal for experimental botany, 37(4), 577-586. https://doi.org/10.1007/BF02908842 (Original work published 1995)