In this article we will discuss the structure and functions of pili and fimbriae. Structure of Pili and Fimbriae: Both fimbriae and pili are like flagella as both are the appendages on bacterial cell wall. They originate from cytoplasm that protrudes outside after penetrating the peptidoglycan layer of cell wall. Fimbriae are made up of 100% protein called fimbrilin or [...]
Actinomycetes are classified into 7 families. The classification is based on hyphal and reproductive structures. Family 1: Streptomycetaceae: Hyphae non-fragmented, aerial mycelium with chains of spores with 5 to 50 or more conidia per chain e.g. Streptomyces, Microdlobaspone and Sporictilhya. Family 2: Nocardiaceae: Hyphae typically fragmented e.g. Nocardia, Pseudonocardia. Family 3: Micromononsporaceae: Hyphae non-fragmented conidia borne singly or in pairs [...]
In this article we will discuss about the features of actinomycetes with its suitable diagram. Actinomycetes are called actinobacteria or high G + C rich Gram-positive filamentous bacteria due to their mycelium like (slender and branched) structures. These filaments are long and it may fragment into much smaller units and less broad than that of the fungal mycelium usually 0.5 [...]