Biomaterial Database

[Ultrastructure of Bac. anthracis and Bac. cereus]. 1975

A A Shakhbanov

A study was made of the ultrastructure of Bac. anthracis and Bac. cereus (strains 1835 and 205). There were established definite morphological differences between the bacilli under study. The cell wall was much thicker in the causative agent of anthrax, it was permeated by tubules; the surface of the wall was covered by a thick layer of osmiophilic material. The spore membrane of Bac. anthracis was multistratal in character; osmiophilic filaments were seen on the surface of exosporium. Fungoid processes from the cell wall were present in Bac. cereus (strain No. 205); intraplasmic membrane structures were considerably developed; a crystal located on the contralateral end of the cell was formed with the spore, both processes coinciding in time.

UI	MeSH Term	Description	Entries
D008566	Membranes	Thin layers of tissue which cover parts of the body, separate adjacent cavities, or connect adjacent structures.	Membrane Tissue,Membrane,Membrane Tissues,Tissue, Membrane,Tissues, Membrane
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D002473	Cell Wall	The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.	Cell Walls,Wall, Cell,Walls, Cell
D003593	Cytoplasm	The part of a cell that contains the CYTOSOL and small structures excluding the CELL NUCLEUS; MITOCHONDRIA; and large VACUOLES. (Glick, Glossary of Biochemistry and Molecular Biology, 1990)	Protoplasm,Cytoplasms,Protoplasms
D001408	Bacillus anthracis	A species of bacteria that causes ANTHRAX in humans and animals.
D001409	Bacillus cereus	A species of rod-shaped bacteria that is a common soil saprophyte. Its spores are widespread and multiplication has been observed chiefly in foods. Contamination may lead to food poisoning.
D013171	Spores, Bacterial	Heat and stain resistant, metabolically inactive bodies formed within the vegetative cells of bacteria of the genera Bacillus and Clostridium.	Bacterial Spores,Bacterial Spore,Spore, Bacterial