(a) Actinomycetes are small finely branched filamentous forms.
(b) They resemble the mycelium of fungi. Actinomycetes reproduce through conidia or Conidiosphores.
(c) They are prokaryotic forms.
(d) They are decomposers of the soil.
(e) Antibiotics are produced by some of them.
(f) Some members of actinomycetes produce disease in man, plants and animals.
(g) Actinomycetes are similar to bacteria in metabolic activities.
(h) They are similar to true fungi in their structure.
(i) The mycelium is aseptate.
(j) The cytoplasm of mycelium consists of vacuoles and fat droplets.