1. Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
2. Institute of Science and Technology, São Paulo State University (UNESP), Sorocaba, SP, Brazil
3. Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP, Brazil
4. Department of Bioscience, Aarhus University, Vejlsovej 25, PO BOX 314, DK-8600 Silkeborg, Denmark