| ABSTRACT In the northeastern region of Brazil, saline soils are constraints to banana production, becoming necessary to understand the mechanisms of salt tolerance. Two bananas genotypes, Tap Maeo, tolerant, and Berlin, sensitive, were subjected to treatment with 50 mol m-3 NaCl or without salt. This study evaluated the effects of salt on the following physiological aspects: leaf area, content and distribution of Na+, membrane integrity, proton AT Pase activity. Besides, a search for differentially expressed genes was performed using the Differential Display technique. Tap Maeo genotype showed the smallest reduction in leaf area, smaller accumulation of Na+ and malondialdehyde (MDA), and higher activity of proton AT Pase activity. Two sequences... |
