1. IBB-Institute for Biotechnology and Bioengineering, Centre for Biological Engineering, Universidade do Minho, Braga, Portugal
2. Centro de Engenharia Biológica, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal. Phone: +351 253 60 44 00; Fax: +351 253 67 89 86; E-mail: protozoa@deb.uminho.pt
3. IBB-Institute for Biotechnology and Bioengineering Centre for Biological Engineering Universidade do Minho Braga, Portugal