Abstract
Until recently, inaccurate classification of many actinomycete taxa has hindered not only the development of efficient selective isolation procedures (Goodfellow and Williams, 1986, Goodfellow, 1988) but also the establishment of actinophage typing systems, for reliable identification of actinomycete species or genera (Prauser, 1984). Consequently the use of actinophage as a natural tool has not been accepted as an effective and inexpensive aid to taxonomy of many novel genera and could not be exploited for selective isolation purposes.