Barnet Y M, Humphrey B
Can J Microbiol. 1975 Oct;21(10):1647-50. doi: 10.1139/m75-239.
Enzymes induced by two Rhizobium trifolii bacteriophages caused depolymerization of exopolysaccharides from most R. trifolii and R. leguminosarum strains tested, but did not, in general, attack the exopolysaccharides of R. meliloti, the slow-growing rhizobia, or Agrobacterium. Ca2+ and (or) Mg2+ were required for enzyme activity. In all strains tested, depolymerization of exopolysaccharide occurred when there was successful phage infection, but depolymerization also occurred with exopolysaccharides from nonsusceptible strains.
两种三叶草根瘤菌噬菌体诱导产生的酶，可使大多数受试的三叶草根瘤菌和豌豆根瘤菌菌株的胞外多糖发生解聚，但一般不会攻击苜蓿根瘤菌（生长缓慢的根瘤菌）或土壤杆菌的胞外多糖。酶活性需要钙离子和（或）镁离子。在所有受试菌株中，当噬菌体成功感染时，胞外多糖会发生解聚，但来自非敏感菌株的胞外多糖也会发生解聚。
