Abstract
Five strains of pink-pigmented, facultatively methylotrophic bacteria (PPFM) isolated from plant surfaces and grown in different carbon sources, were fixed, embedded and sectioned for examination with the electron microscope. The strains studied represented the two mainsub-groups, those that can use carbohydrates and those that can not use carbohydrates as a sole carbon and energy source. All of the isolates examined, produced crystalloid inclusions, internal membranous vesicles and internal “membranous sheets” although the number of cells with inclusions, varied with the carbon source and specific strain. Polybetahydroxybutyrate and polyphosphate bodies were observed in all strains, with all carbon sources used for growing cells which includes methanol, formate and glycerol. Isolates that could use glucose accumulated polyglucoside granules but not when other carbon sources were provided. The relationship of these inclusions to growth conditions is discussed.
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Corpe, W.A., Jensen, T.E. & Baxter, M. Fine structure of cytoplasmic inclusions of some methylotrophic bacteria from plant surfaces. Arch. Microbiol. 145, 107–112 (1986). https://doi.org/10.1007/BF00446765
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DOI: https://doi.org/10.1007/BF00446765