Conjugative plasmid

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[[Reproduction by Conjugation|Conjugation]] is the process by which a section of [[DNA|DNA]] is tranferred from one living cell (the host) to a second living cell (the recipient). A [[Plasmid|plasmid]] is a small circular piece of DNA which is found free in the cytoplasm of bacteria cells. In most cases bacterial conjugation utilizes the sex pilus which is encoded for within the bacterium such as [[E. coli|E. coli]]. The sex pilus makes the initial contact between the two bacteria cells, depolymerises, and in doing so, pulls the two bacteria cells into very close proximity of one another. Conjugation is usually regulated by the conjugation plasmid; an example of which is the F. plasmid in E. coli. F. plasmids can sometimes carry some bacterial genomic DNA which is called an F' (F Prime) plasmid<ref>Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley, (2012;177), Introduction to Genetic Analysis, 10th Edition, New York, W.H. Freeman, Palgrave, Macmillan</ref>. Non-conjugative plasmids can be transferred during conjugation if they have specific mobilisation (mob) genes <ref>Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley, (2012), Introduction to Genetic Analysis, 10th Edition, New York, W.H. Freeman, Palgrave, Macmillan</ref>.<br>
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[[Reproduction by Conjugation|Conjugation]] is the process by which a section of [[DNA|DNA]] is transferred from one living [[cell|cell]] (the host) to a second living cell (the recipient). A [[Plasmid|plasmid]] is a small circular piece of DNA which is found free in the [[cytoplasm|cytoplasm]] of [[bacteria cells|bacteria cells]]. In most cases, bacterial conjugation utilizes the [[sex pilus|sex pilus]] which is encoded for within the [[bacterium|bacterium]] such as [[E. coli|''E. coli'']]''.'' The sex pilus makes the initial contact between the two bacteria cells, depolymerises, and in doing so, pulls the two bacteria cells into very close proximity of one another. Conjugation is usually regulated by the conjugation [[plasmid|plasmid]]; an example of which is the [[F_plasmid|F. plasmid]] in ''E. coli.'' F. plasmids can sometimes carry some bacterial genomic DNA which is called an F' (F Prime) plasmid<ref>Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley, (2012;177), Introduction to Genetic Analysis, 10th Edition, New York, W.H. Freeman, Palgrave, Macmillan</ref>. Non-conjugative plasmids can be transferred during conjugation if they have specific mobilisation (mob) genes <ref>Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley, (2012), Introduction to Genetic Analysis, 10th Edition, New York, W.H. Freeman, Palgrave, Macmillan</ref>.  
  
 
=== References  ===
 
=== References  ===
  
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Latest revision as of 09:21, 18 November 2017

Conjugation is the process by which a section of DNA is transferred from one living cell (the host) to a second living cell (the recipient). A plasmid is a small circular piece of DNA which is found free in the cytoplasm of bacteria cells. In most cases, bacterial conjugation utilizes the sex pilus which is encoded for within the bacterium such as E. coli. The sex pilus makes the initial contact between the two bacteria cells, depolymerises, and in doing so, pulls the two bacteria cells into very close proximity of one another. Conjugation is usually regulated by the conjugation plasmid; an example of which is the F. plasmid in E. coli. F. plasmids can sometimes carry some bacterial genomic DNA which is called an F' (F Prime) plasmid[1]. Non-conjugative plasmids can be transferred during conjugation if they have specific mobilisation (mob) genes [2].

References

  1. Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley, (2012;177), Introduction to Genetic Analysis, 10th Edition, New York, W.H. Freeman, Palgrave, Macmillan
  2. Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley, (2012), Introduction to Genetic Analysis, 10th Edition, New York, W.H. Freeman, Palgrave, Macmillan
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