Abstract
Shadowed motile elements from actinomycetes were observed with an electron microscope. Included were three strains of Actinoplanes, two of Ampullariella, two of Dermatophilus, two of Spirillospora, and four of “Nocardia” turbata. In addition, three types of previously undescribed actionmycetes were represented: (i) the C4 group (four strains) forming substrate mycelium breaking into motile rods; (ii) strain 9-41, forming Microellobosporia-like sporangia with motile spores; and (iii) strain P2, forming aerial hyphae releasing motile cocci when put in water. All the known chemical cell wall types of actinomycetes except the Nocardia asteroides type and the Actinomyces israeli type were represented in this array of motile actinomycetes. Motile elements were, depending on the genus, cocci, rods (often curved), or pyriform. Flagella were always in tufts (or single), never peritrichous. A relationship seems to exist between the location of the tuft and the cell wall composition. The spores of one strain of Actinoplanes were herniated, thus resembling plasmoptysis forms of bacteria.
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- BECKER B., LECHEVALIER M. P., GORDON R. E., LECHEVALIER H. A. RAPID DIFFERENTIATION BETWEEN NOCARDIA AND STREPTOMYCES BY PAPER CHROMATOGRAPHY OF WHOLE-CELL HYDROLYSATES. Appl Microbiol. 1964 Sep;12:421–423. doi: 10.1128/am.12.5.421-423.1964. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BECKER B., LECHEVALIER M. P., LECHEVALIER H. A. CHEMICAL COMPOSITION OF CELL-WALL PREPARATIONS FROM STRAINS OF VARIOUS FORM-GENERA OF AEROBIC ACTINOMYCETES. Appl Microbiol. 1965 Mar;13:236–243. doi: 10.1128/am.13.2.236-243.1965. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cummins C. S. Ornithine in mucopeptide of Gram-positive cell walls. Nature. 1965 Jun 19;206(990):1272–1272. doi: 10.1038/2061272a0. [DOI] [PubMed] [Google Scholar]
- ERIKSON D. Factors promoting cell division in a soft mycelial type of Nocardia: Nocardia turbata n. sp. J Gen Microbiol. 1954 Oct;11(2):198–208. doi: 10.1099/00221287-11-2-198. [DOI] [PubMed] [Google Scholar]
- GORDON M. A. THE GENUS DERMATOPHILUS. J Bacteriol. 1964 Aug;88:509–522. doi: 10.1128/jb.88.2.509-522.1964. [DOI] [PMC free article] [PubMed] [Google Scholar]
- LECHEVALIER H., HOLBERT P. E. ELECTRON MICROSCOPIC OBSERVATION OF THE SPORANGIAL STRUCTURE OF A STRAIN OF ACTINOPLANES. J Bacteriol. 1965 Jan;89:217–222. doi: 10.1128/jb.89.1.217-222.1965. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lechevalier H. A., Lechevalier M. P., Holbert P. E. Electron microscopic observation of the sporangial structure of strains of Actinoplanaceae. J Bacteriol. 1966 Oct;92(4):1228–1235. doi: 10.1128/jb.92.4.1228-1235.1966. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lechevalier H., Lechevalier M. P. Classification des actinomycètes aérobies basée sur leur morphologie et leur composition chimique. Ann Inst Pasteur (Paris) 1965 May;108(5):662–673. [PubMed] [Google Scholar]
- Lowy J. Structure of the proximal ends of bacterial flagella. J Mol Biol. 1965 Nov;14(1):297–299. doi: 10.1016/s0022-2836(65)80251-0. [DOI] [PubMed] [Google Scholar]
- Willoughby L. G. A conidial actinoplanes isolate from Blelham Tarn. J Gen Microbiol. 1966 Jul;44(1):69–72. doi: 10.1099/00221287-44-1-69. [DOI] [PubMed] [Google Scholar]