1 Graduate School of Biotechnology and Environmental Monitoring (UFSCar), Federal University of São Carlos (UFSCar), Sorocaba, Brazil. viviani@ufscar.br.
2 Graduate School of Evolutive Genetics and Molecular Biology (UFSCar), São Carlos, Brazil. viviani@ufscar.br.
3 Graduate School of Biotechnology and Environmental Monitoring (UFSCar), Federal University of São Carlos (UFSCar), Sorocaba, Brazil.
4 Graduate School of Evolutive Genetics and Molecular Biology (UFSCar), São Carlos, Brazil.
5 Department of Chemistry, Connecticut College, New London, CT, USA.
6 Dept. Biological Sciences, Vanderbilt University, Nashville, TN, USA.