Phase and antigenic variation govern competition dynamics through positioning in bacterial colonies.
Phase and antigenic variation govern competition dynamics through positioning in bacterial colonies.
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DOI:
10.1038/s41598-017-12472-7
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发表时间:
2017-09-22
影响因子:
4.6
通讯作者:
Maier B
中科院分区:
文献类型:
--
作者:
Zöllner R;Oldewurtel ER;Kouzel N;Maier B
Cellular positioning towards the surface of bacterial colonies and biofilms can enhance dispersal, provide a selective advantage due to increased nutrient and space availability, or shield interior cells from external stresses. Little is known about the molecular mechanisms that govern bacterial positioning. Using the type IV pilus (T4P) of Neisseria gonorrhoeae, we tested the hypothesis that the processes of phase and antigenic variation govern positioning and thus enhance bacterial fitness in expanding gonococcal colonies. By independently tuning growth rate and T4P-mediated interaction forces, we show that the loss of T4P and the subsequent segregation to the front confers a strong selective advantage. Sequencing of the major pilin gene of the spatially segregated sub-populations and an investigation of the spatio-temporal population dynamics was carried out. Our findings indicate that pilin phase and antigenic variation generate a standing variation of pilin sequences within the inoculation zone, while variants associated with a non-piliated phenotype segregate to the front of the growing colony. We conclude that tuning of attractive forces by phase and antigenic variation is a powerful mechanism for governing the dynamics of bacterial colonies.
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DOI:
10.1038/nrmicro2713
发表时间:
2012-01-31
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
通讯作者:
--
影响因子:
3.6
作者:
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通讯作者:
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DOI:
10.1073/pnas.0710150104
发表时间:
2007-12-11
影响因子:
11.1
作者:
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通讯作者:
Nelson, David R.
DOI:
10.3390/pathogens3010164
发表时间:
2014-02-25
期刊:
Pathogens (Basel, Switzerland)
影响因子:
--
作者:
Bidmos FA;Bayliss CD
通讯作者:
Bayliss CD
影响因子:
2.5
作者:
Dewenter, Lena;Volkmann, Thorsten E.;Maier, Berenike
通讯作者:
Maier, Berenike