Malika Rached-Kanouni1, Zahia Kadi, Hichem Khammar, Rima Bouzobra, Fadhila Belghit and Labed Ababsa
Abstract
The objective of our study is to analyze the effects of heat stress (high temperatures) on Casuarina equisetifolia seedlings. In our experiment, variations in protein content, peroxidase (GPX) and catalase (CAT) activities are monitored on the leaves. Heat stress is carried out at temperatures of 36 ðC, 38 ðC, 40 ðC, 42 ðC and 44 ðC for a period of 3 hours with the aim of estimating the degree of adaptation of seedlings by biochemical markers. The results obtained indicate that protein accumulation is obtained at 44 ðC. Catalase and peroxidase activities are significant at 38 ðC and 42 ðC respectively.