�ber die Feinstruktur des Zytoplasmas in Ultrad�nnschnitten von Mycobakterium tuberculosis (BCG)

Zapf, K

doi:10.1007/bf00629291

Cited by 17 publications

(4 citation statements)

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“…Electron microscope studies of ultrathin sections of mycobacteria have been reported by the present authors (1, 2), Bassermann (3), Brieger and Glauert (4), Shinohara et al (5,6), and Zapf (7,8). According to these investigators, the nuclear apparatus was described as a nuclear vacuole with thread-like, coarse fibrillar, and/or granular nuclear material.…”

Section: Introductionsupporting

confidence: 70%

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Fine Structures of Intracytoplasmic Organelles of Mycobacteria

Koike

Takeya

1961

The Journal of Cell Biology

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The fine structure of the intracytoplasmic organelles of mycobacteria was studied by means of electron microscopy of ultrathin sections. A well-preserved nuclear apparatus was obtained by fixation with OsO4 in acetate-veronal buffer, containing calcium and tryptone, or in collidine-HCl buffer, followed by uranyl-acetate treatment and embedding in araldite. A low density nuclear region was filled with fine fibrils, 30 A in diameter, in parallel or concentric arrangement. A membranous organelle, tentatively designated as "lamellar structure," consists of unit membranes in lamellar arrangement. The thickness of each lamella in this membranous organelle coincides with that of the three-layered cytoplasmic membrane Moreover, the continuity of this unit membrane with the cytoplasmic membrane was demonstrated.

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Section: Introductionsupporting

confidence: 70%

“…A mitochondrion-like structure was first reported by Shinohara eta[. (5) and Zapf (7) in mycobacteria and was considered to be equivalent to mitochondria of higher organisms. Later, a similar structure was found in human-type tubercle bacilli by Yoshida et al (28).…”

Section: Fmurementioning

confidence: 99%

Fine Structures of Intracytoplasmic Organelles of Mycobacteria

Koike

Takeya

1961

The Journal of Cell Biology

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“…Occasional membranous bodies are detected, but their relationship to other structures in the hyphae is not apparent. Similar inadequacies of preparation technique may be responsible for the fact that only isolated membranous structures have been described previously in mycobacteria, although these organisms have been studied far more widely than streptomycetes Glauert and Brieger, 1956;Breiger and Glauert, 1956;Zapf, 1957;Shinohara, Fukushi, Suzuki, and Sato, 1958;Takeya et al, 1959;Chapman, Hanks, and Wallace, 1959). An extensive system of parallel intracytoplasmic membranes has been observed by Brieger, Glauert, and Allen (1959) in Mycobacterium leprae.…”

Section: Discussionmentioning

confidence: 65%

The Fine Structure of Streptomyces coelicolor

Glauert¹,

Hopwood²

1960

The Journal of Cell Biology

102

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Colonies and spore suspensions of Streptomyces codicolor were fixed by the method of Kellenberger, Ryter, and S~chaud (1958) and embedded in methacrylate or araldite. Thin sections were cut with an A. F. Huxley microtome and examined in a Siemens' Elmiskop I.At all stages of development the hyphae of Streptomyces coelicolor have an extensive membranous component in the cytoplasm. The membranes are continuous with the plasma membrane and have a variety of configurations at different places in the hyphae. Tubular structures, vesicles, and parallel stacks of membranes are seen. In some areas concentric layers of membranes form whorled structures which are particularly frequent in the region of developing cross-walls and within maturing spores. In the spores membranous structures often lie embedded in the nuclear material. In disintegrating hyphae the intracytoplasmic membranes round off into small vesicles and remain when the rest of the cytoplasmic structure has gone.In the absence of typical mitochondria and other cytoplasmic membranous structures it is possible that the membranous component of the cytoplasm of Streptomyces codicolor may perform the functions of the endoplasmic reticulum and/or the mitochondria of higher cells.

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“…Electron microscopy of various strains of mycobacteria has revealed fine structures, especially that of the intracytoplasmic membranous configuration (Shinohara, Fukushi, and Suzuki, 1957;Zapf, 1957;Shinohara et al, 1958Shinohara et al, , 1959Niklowitz, 1958;Fukushi, 1959;Takeya et al, 1959;Chapman, Hanks, and Wallace, 1959;Brieger, Glauert, and Allen, 1959;Takeya, 1959;Drews, 1960). Koike and Takeya (1961), using Mycobacterium sp., strain Jucho, and Imaeda and Convit (1962) with M. leprae, reported the relationship between the plasma membrane and the intracytoplasmic membranous structures.…”

mentioning

confidence: 99%

Formation of Intracytoplasmic Membrane System of Mycobacteria Related to Cell Division

Imaeda

Ogura

1963

J Bacteriol

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AND MITUA OGURA. Formation of intracytoplasmic membrane system of mycobacteria related to cell division. J. Bacteriol. 85:150-163. 1963.-Mycobacterium leprae, M. lepraemurium, and a Mycobacterium sp. were observed with an electron microscope. In these bacilli, the three-dimensional structure of the intracytoplasmic membrane system consists of tubular infoldings of the invaginated plasma membrane. The moderately dense substance, presumably representing the cell-wall precursor, is found in the membranous system, especially in the rapid growth phase of mycobacteria. This system always shows an intimate relationship with cell division. A low-density zone, probably corresponding to the low-density substance

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�ber die Feinstruktur des Zytoplasmas in Ultrad�nnschnitten von Mycobakterium tuberculosis (BCG)

Cited by 17 publications

References 1 publication

Fine Structures of Intracytoplasmic Organelles of Mycobacteria

Fine Structures of Intracytoplasmic Organelles of Mycobacteria

The Fine Structure of Streptomyces coelicolor

Formation of Intracytoplasmic Membrane System of Mycobacteria Related to Cell Division

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