title: Protozoa and bacteria in the rhizosphere of Sinapis alba L., Trifolium repens L., and Lolium perenne L.
mesh_terms: D001419:Bacteria / Q000302:isolation & purification*; D016798:Ciliophora / Q000302:isolation & purification*; D056890:Eukaryota / Q000302:isolation & purification*; D010944:Plants; D012988:Soil Microbiology