Why is it beneficial for bacteria to conjugate? I would think it's more beneficial to take a plasmid from another cell, than to give yours away or "share". Not homework, I'm just curious.


I am going to try answer it. Bacteria in general has different survival tactics. In general for bacteria the best way how to surviva is as much copies as it cans. So imagine situation, when bacteria is surround with others bacteria. Then the race will bega. All bacteria wants to survive with same tactic as i mentioned. Thats mean the best way how to archived this goal is make your replication fast.

So when you take plasmid with resitantion to antibiotics its advantige to have those, but when you actually is not exhibit to that antibiotic it slow down your chance to survive (because it slows down your replication, cell division)

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  • $\begingroup$ This article might be helpfull too here $\endgroup$ – L.Diago May 28 '18 at 18:13
  • $\begingroup$ So, it's to gain genetic variability? Because if they didn't have the ability to do HGT, the only mechanism to get genetic variability would be spontaneous mutation, which is way to slow, I guess. $\endgroup$ – Thale Mathiassen May 29 '18 at 9:23
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    $\begingroup$ @ThaleMathiassen Mutation rate is not too slow. Actually bacteria has mechanism to incries the rate. With the genetic variability you are right, HGT gets to bacteria something more, something new, what might be helpfull to survive. Good example is transduction in Griffith´s experiment. $\endgroup$ – L.Diago May 29 '18 at 9:52

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