ISSN:
1432-072X
Keywords:
Bacillus pulvifaciens
;
Vegetative cells
;
Spotes
;
Ultrastructure
;
Electron microscopy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The ultrastructure of vegetative cells and spores of Bacillus pulvifaciens was studied by CTEM and SEM methods. The vegetative cells are rods, 1.6–4.5 μm long and 0.4–0.6 μm wide, exhibiting typical ultrastructural features of Gram-positive bacteria. The spores are of ellipsoidal shape, 0.6×1.2 μm in size, with six longitudinal ribs reaching up to 130 nm in height. There are satelite ribs on both sides of the longitudinal ribs, reaching up to 20 nm in height. Between the longitudinal ribs, additional transversal ribs were observed in SEM. A special tubular layer, separating the outer and inner coat of the spores, was revealed in ultrathin sections. This layer seems to be a typical ultrastructural feature of Bacillus pulvifaciens spores.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00250269
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