any bacteria (some of which are pathogenic for humans and animals) belonging to the order Actinomycetales
造句
The microorganisms involved in symbiosis with the alder tree are actinomycetes of the genus Frankia. 而與赤楊共生的微生物是放線菌。
The foam is caused by the excessive growth of some filamentous bacteria and actinomycetes in activated sludge mixed liquor. 大量研究表明，污泥中某些絲狀菌或放線菌的過度增殖是造成活性污泥工藝中泡沫問題的主要原因。