1. Laboratory of Soil Microbiology, Soil Science Department Federal University of Ceará Fortaleza Brazil
2. Laboratory of Microbial Ecology and Biotechnology, Biology Department Federal University of Ceará Fortaleza Brazil
3. Cell and Molecular Biology Laboratory Center for Nuclear Energy in Agriculture, University of Sao Paulo Piracicaba Brazil
4. Soil Quality Lab., Department of Agricultural Engineering and Soil Science Federal University of Piauí Teresina Brazil