1. Department of Chemistry, Biochemistry Laboratory Universidade Federal de Lavras (UFLA) Lavras Brazil
2. Department of Materials Science and Engineering Universidade Federal de São Carlos (UFSCar) São Paulo Brazil
3. Department of Engineering, Laboratory of Materials and Biosystems (LAMAB) Universidade Federal de Lavras (UFLA) Lavras Brazil
4. Phytopathology department, Laboratory of electron microscopy and ultrastructural analysis Universidade Federal de Lavras (UFLA) Lavras Brazil