Angelbeck D I, Kirsch E J
Appl Microbiol. 1969 Mar;17(3):435-40. doi: 10.1128/am.17.3.435-440.1969.
Aggregative growth of non-slime-forming strains of Zoogloea ramigera was induced by growing the organisms at a depressed pH. Calcium and magnesium ion was found to reverse aggregative growth of the organisms. Conversely, aggregation was stimulated when the available inorganic cation concentration of the growth medium was lowered by the use of a chelating agent. The aggregative effects of pH depression or cation depletion and the dispersal effects of cation supplementation were observed only during cellular growth. The data suggest that aggregate formation of non-slime-forming strains of Z. ramigera may be related to the calcium or magnesium metabolism of the organisms, or both.
通过在低pH值条件下培养生枝动胶菌的非黏液形成菌株，可诱导其聚集生长。发现钙和镁离子可逆转这些菌株的聚集生长。相反，当使用螯合剂降低生长培养基中可利用的无机阳离子浓度时，聚集作用会受到刺激。pH值降低或阳离子缺乏的聚集效应以及阳离子补充的分散效应仅在细胞生长期间观察到。数据表明，生枝动胶菌非黏液形成菌株的聚集体形成可能与该生物体的钙或镁代谢有关，或与两者都有关。
