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Pili sex

pili, sex

filamentous or elongated proteinaceous structures which extend from the cell surface in gram-negative bacteria that contain certain types of conjugative plasmid. These pili are the organs associated with genetic transfer and have essential roles in conjugation. Normally, only one or a few pili occur on a given donor cell. this preferred use of pili refers to the sexual appendage, to be distinguished from bacterial fimbriae (fimbriae, bacterial), also known as common pili, which are usually concerned with adhesion.


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Bacterial Genetics Project

... way. I was hoping to somehow use florescent labeling to observe the sex pili, but I have not been able to figure out what materials I need. Is there some way to label ...

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by Quiksilver737
Sat Mar 19, 2011 8:44 pm
 
Forum: Genetics
Topic: Bacterial Genetics Project
Replies: 0
Views: 1646

The Fiber Disease

... fimbriae (singular: fimbria) these help to stick to body surfaces. Pili can attach two bacterial cells together: sex pili are necessary for the transfer of certain plasmids between bacteria. Mask design of ...

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by Nadas Moksha
Sat Oct 28, 2006 3:28 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5429453

The Fiber Disease

... homologues in intracellular bacteria of amoebae. We sought and observed sex pili-like cell surface appendages for R. bellii. We also found that R. bellii very efficiently ...

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by London
Fri Jul 21, 2006 10:22 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5429453

take home quiz

... prokaryotes stick to their substrate or each other? A) a capsule B) pili C) flagella D) sex pili E) All of the choices help prokaryotes stick to their substrate or each other. 10) ...

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by dionne2004
Thu Mar 23, 2006 6:02 pm
 
Forum: Cell Biology
Topic: take home quiz
Replies: 3
Views: 10421

flagella and cilia

... differ in function. Cilli and flagelli are used in locomotion, while pili are used in nutrition and respiration(common pilli) and making the connection between "male" and "female" bacteria(that posses or not the F plasmid)(sex pilli). Pilli also serve as receptors for bacteriophages

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by MrMistery
Mon Oct 10, 2005 6:16 pm
 
Forum: Cell Biology
Topic: flagella and cilia
Replies: 12
Views: 9881


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