What does pilus mean?
A pilus is a hair-like structure found on the surface of certain bacteria, used for attachment, DNA transfer, or sensing the environment. It is a type of appendage that protrudes from the cell surface and plays a crucial role in bacterial interactions. The pilus is typically used for attachment to surfaces, facilitating DNA transfer, or aiding in movement towards nutrients. The term is primarily used in microbiology and is often used interchangeably with fimbria. Understanding the pilus is important for studying bacterial behavior and interactions. The pilus is a key feature of certain bacteria, allowing them to interact with their environment and other bacteria. It is a vital component of bacterial biology.
nounA pilus is a hair-like structure on the surface of certain bacteria, used for attachment, DNA transfer, or sensing the environment. It is a type of appendage that protrudes from the cell surface.
- A hair-like structure on bacteria
- A type of bacterial appendage
"The bacterium Escherichia coli uses its pilus to attach to surfaces and facilitate DNA transfer."
"The pilus plays a crucial role in bacterial conjugation."
"Some bacteria use their pilus to move towards nutrients."
The plural form pili is used when referring to multiple pilus structures.
"The bacteria had multiple pili on their surface, allowing them to attach to different surfaces."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of pilus
The term pilus comes from the Latin word for 'hair'. It has been used in biology to describe hair-like structures on cells, particularly bacteria. The concept of the pilus has evolved over time as our understanding of bacterial structure and function has improved.
How pilus is actually used
The term pilus is primarily used in microbiology and is often used interchangeably with fimbria, although some sources make a distinction between the two.