Associations Of Actinomycetes With Algae

The review focuses on the behaviour of streptomycetes and a green eukaryotic alga (Chlorella) in mixed cultures. Possibility of establishing common lichen-like thalli is confirmed; favourable cultural conditions are specified and distinctive properties of resulting associations documented. Compatible partners could be chosen by simple tests, developed to detect positive tropism of actinomycetes towards algae, as well as to monitor changes in cosedimentation patterns in mixtures of actinomycete and algal cells. Pairs displaying reciprocal or one-sided antagonism were noncompatible; growth stimulation was noted with effective combinations of partners. Natural communities of algae and bacteria, with predominance of streptomycetes, were found of some outcrops on carbonaceous rocks in temperate climates. A bibliography on behaviour of mixed cultures of actinomycetes with other organisms is included.