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Trichoderma stromaticum, a mycoparasite of the cacao witches‘ broom pathogen Moniliophthora perniciosa, is being used in Bahia, Brazil to control the disease under field conditions. The endophytic potential of this biocontrol agent was studied in both shoot and root tissues of sterile and nonsterile cacao and bean seedlings. Agar plate and light and electron microscopy studies showed that T. stromaticum...
When human erythrocytes are osmotically stressed or chemically treated, they hemolyze on cooling below 10 degrees C (called cold shock). We have studied the effects of osmotic stress and cooling on the state of membrane by the spin-probe method and freeze-fracture electron microscopy. At room temperature, the membrane fluidity detected by 12-doxyl stearate spin probe showed a steady decrease with...
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