Certain pili, known as conjugation pili, unite prokaryotic cells to one another and permit the passage of DNA between the cells. The term fimbriae is often used for the attachment pili. Many bacteria, especially pathogens, are enclosed at their surface by a layer of polysaccharides and proteins called the glycocalyx.
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Certain pili, known as conjugation pili, unite prokaryotic cells to one another and permit the passage of DNA between the cells. The term fimbriae is often used for the attachment pili. Many bacteria, especially pathogens, are enclosed at their surface by a layer of polysaccharides and proteins called the glycocalyx.