title: Growth of Chlorella sorokiniana in the presence of sulfite elevates cell content of superoxide dismutase and imparts resistance towards paraquat.
abstract: 1. Growth of Chlorella sorokiniana in the presence of 7.5 mM sulfite, which halved the growth rate while doubling the superoxide dismutase (SOD; EC 1.15.1.1) content per cell, rendered the cells resistant to the toxic effects of 30 μM paraquat. 2. While increasing total SOD content, sulfite increased the relative amount of the H2O2-resistant manganese-containing SOD. 3. It appears that O2 (-) may be involved in mediating the toxicity of SO2 in this green alga.
authors.affiliation: Department of Field and Vegetable Crops, Faculty of Agriculture, Hebrew University, Rehovot, Israel.
authors.forename: H D
authors.initials: HD
authors.lastname: Rabinowitch
authors.forename: I
authors.initials: I
authors.lastname: Fridovich