Molecular identification of catalases from Nicotiana plumbaginifolia (L.)
- 19 September 1994
- journal article
- Published by Wiley in FEBS Letters
- Vol. 352 (1) , 79-83
- https://doi.org/10.1016/0014-5793(94)00923-6
Abstract
We have isolated three different catalase cDNAs from Nicotiana plumbaginifolia (cat1, cat2, and cat3) and a partial sequence of a fourth catalase gene (cat4) that shows no discernible expression based on Northern analysis. The catalase sequences were used to determine the similarity with other plant catalases and to study the transcriptional response to paraquat, 3-aminotriazole, and salicylic acid. 3-Aminotriazole induces mRNA levels of cat1, cat2 and cat3, indicating that a reduction in catalase activity positively affects catalase mRNA abundance. Salicylic acid that binds catalase in vitro, had no effect on catalase transcript levels at physiological concentrations. Paraquat resulted in the induction of cat1.Keywords
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