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El acoplamiento entre biofilms distantes y el surgimiento del tiempo compartido de nutrientes
Jintao Liu1, Rosa Martinez-Corral2, Arthur Prindle1
1Division of Biological Sciences, University of California, San Diego, CA 92093, USA.
Science (New York, N.Y.)
|April 8, 2017
Resumen
Las comunidades bacterianas distantes pueden sincronizar su crecimiento usando señales eléctricas. Esta coordinación permite compartir los nutrientes en el tiempo, mejorando el crecimiento incluso con recursos limitados.
Área de la Ciencia:
- Microbiología
- Biología de sistemas
- La bioelectricidad
Sus antecedentes:
- Las bacterias dentro de las comunidades pueden organizar el comportamiento a través de las interacciones.
- La coordinación del comportamiento entre poblaciones bacterianas distantes no estaba clara anteriormente.
Objetivo del estudio:
- Para investigar si la señalización eléctrica puede acoplar comunidades biofilm bacterianas distantes.
- Para entender cómo las biofilms acopladas manejan la competencia de nutrientes y sincronizan el crecimiento.
Principales métodos:
- Utilizó las comunidades de Bacillus subtilis biofilm.
- Se observaron oscilaciones metabólicas y señalización eléctrica.
- Empleó modelos matemáticos para predecir y analizar el comportamiento de las biopelículas.
Principales resultados:
- Dos comunidades de biofilm de Bacillus subtilis acopladas a través de señales eléctricas sincronizaron el crecimiento.
- El acoplamiento condujo a una demanda sincronizada de nutrientes, aumentando la competencia.
- Las biopelículas cambiaron de oscilaciones en fase a antifase, permitiendo el tiempo compartido de nutrientes.
Conclusiones:
- Las biopelículas distantes pueden coordinar el comportamiento a través de la señalización eléctrica y el tiempo compartido.
- El tiempo compartido permite que las biopelículas aumenten el crecimiento bajo la limitación de nutrientes.
- Esta estrategia refleja la asignación de recursos en los sistemas diseñados.
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