What are the ultrastructure of actinomycetes?
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Despite their name, which mean “ray fungus,” Actinomyces are typical bacteria. As in other Gram-positive bacteria, the cell wall peptidoglycan contains muramic acid, glutamic acid, and one or two additional amino acids. Actinomyces species also have lysine in the peptidoglycan. Most trains of A viscosus and A naeslundi bear well-developed and long fibrils. Pili on A viscosus and A naeslundi are two types. Type 1 pili are involved in attachment of the bacteria to hard surfaces in the mouth, where type 2 pili are involved in coaggregation reactions with other bacteria.
Actinomycetes contain a cell wall. Flagella grows in and on the substrate. Another internal structure is thallus (a tissue like mass that grows in cultures). One more internal structure is mycelium (tangled mass of hyphae that is found in nature). Actinomycetes can be identified by their branching growth pattern that results in large threadlike structures. These filaments may break apart to form rods or spheroidal shapes, called bacillus. Some actinomycetes can form spores.
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Here BDR11
Despite their name, which mean “ray fungus,” Actinomyces are typical bacteria. As in other Gram-positive bacteria, the cell wall peptidoglycan contains muramic acid, glutamic acid, and one or two additional amino acids. Actinomyces species also have lysine in the peptidoglycan. Most trains of A viscosus and A naeslundi bear well-developed and long fibrils. Pili on A viscosus and A naeslundi are two types. Type 1 pili are involved in attachment of the bacteria to hard surfaces in the mouth, where type 2 pili are involved in coaggregation reactions with other bacteria.
Actinomycetes contain a cell wall. Flagella grows in and on the substrate. Another internal structure is thallus (a tissue like mass that grows in cultures). One more internal structure is mycelium (tangled mass of hyphae that is found in nature). Actinomycetes can be identified by their branching growth pattern that results in large threadlike structures. These filaments may break apart to form rods or spheroidal shapes, called bacillus. Some actinomycetes can form spores.
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