1. Teagasc, Environmental Research Centre Johnstown Castle Wexford, Ireland and Microbial Ecology Lab. Microbiology; School of Natural Sciences and Ryan Institute National Univ. of Ireland; Galway Ireland
2. Teagasc, Environmental Research Centre Johnstown Castle; Wexford Ireland
3. UCD Bioresources Research Centre; Biosystems Engineering Univ. College; Dublin Ireland
4. Teagasc, Ashtown Research Centre; Dublin Ireland
5. Microbial Ecology Lab.; Microbiology School of Natural Sciences and Ryan Institute National Univ. of Ireland; Galway Ireland