[Search for actinomycetes--antagonists of fungi causing sugar beet root rot].

Actinomycetes belonging to Streptomyces were isolated from the rhizosphere of sugar beet grown on an infected area after cultivation for many years. 44.1 per cent of them proved to be antagonists of phytopathogenic test fungi.

[New species of the genus Nocardia and its antibiotic properties].

A culture of a new species of Nocardia, i.e. N.