Ishiguro E E, Wolfe R S
J Bacteriol. 1974 Jan;117(1):189-95. doi: 10.1128/jb.117.1.189-195.1974.
Morphogenesis of Geodermatophilus strain 22-68 involves two stages, a motile rod (R form) and an irregularly shaped cluster of coccoid cells (C form). A variety of mono- and divalent cations have been found to induce R-form to C-form morphogenesis and to maintain the organism in the C form. Concentration optima for all cations exceeded 100 mM. Results indicated that uptake of cations was accompanied by extrusion of intracellular protons, causing an increase in intracellular pH. A variety of organic amines also induced morphogenesis. Organic amines were taken up in the dissociated free base form, causing the intracellular pH to rise. None of these compounds was utilized as a carbon or nitrogen source.
地嗜皮菌菌株22 - 68的形态发生包括两个阶段，一个是运动性杆状（R型），另一个是不规则形状的球状细胞簇（C型）。已发现多种单价和二价阳离子可诱导R型向C型形态发生，并使该生物体维持在C型。所有阳离子的最佳浓度均超过100 mM。结果表明，阳离子的摄取伴随着细胞内质子的排出，导致细胞内pH值升高。多种有机胺也可诱导形态发生。有机胺以解离的游离碱形式被摄取，导致细胞内pH值升高。这些化合物均未被用作碳源或氮源。
