Institution: | Department of Ecology and Environmental Science, University of Kuopio, P.O. Box 1627, 70211 Kuopio, Finland; Department of Biochemistry and Biotechnology, University of Kuopio, P.O. Box 1627, 70211 Kuopio, Finland; Regional Environment Centre, Bio Teknia L3, 70211 Kuopio, Finland; To whom correspondence should be addressed. E-mail: |