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Sensores de plantas y animales de firmas microbianas conservadas
Pamela C Ronald1, Bruce Beutler
1Department of Plant Pathology, University of California, Davis, CA 95616, USA. pcronald@ucdavis.edu
Science (New York, N.Y.)
|November 25, 2010
Resumen
Las plantas y los animales evolucionaron por separado, pero comparten mecanismos de defensa similares contra los microbios. Los descubrimientos de receptores que detectan patógenos en ambos reinos siguieron caminos científicos paralelos, destacando la evolución convergente en la defensa del huésped.
Área de la Ciencia:
- Biología evolutiva Biología evolutiva.
- Inmunología Inmunología.
- Microbiología Microbiología.
Sus antecedentes:
- Las plantas y los animales se separaron hace aproximadamente mil millones de años.
- A pesar de su evolución independiente, ambos reinos multicelulares se enfrentan a constantes amenazas microbianas.
- Los microbios influyeron significativamente en la trayectoria evolutiva de las plantas y los animales.
Objetivo del estudio:
- Explorar la evolución paralela de los mecanismos de defensa del huésped en plantas y animales.
- Investigar el papel de las interacciones microbianas en la configuración de la vida multicelular.
- Para comparar las vías de descubrimiento de los receptores de reconocimiento de patógenos en plantas y animales.
Principales métodos:
- Análisis comparativo de la historia evolutiva.
- Revisión de estudios moleculares y genéticos sobre las interacciones huésped-patógeno.
- Examen de las metodologías de descubrimiento de receptor-ligando en la investigación de plantas y animales.
Principales resultados:
- Los receptores que detectan las firmas moleculares microbianas son cruciales para la defensa del huésped tanto en plantas como en animales.
- La identificación de estos receptores de defensa y sus objetivos en plantas y animales utilizó una lógica y métodos científicos similares.
- Las presiones microbianas han impulsado la evolución convergente de los sistemas de inmunidad innata.
Conclusiones:
- Las presiones selectivas compartidas de los microbios han llevado a sistemas de defensa análogos en plantas y animales.
- El estudio de las interacciones huésped-patógeno revela estrategias evolutivas comunes en todos los reinos.
- La comprensión de estas vías paralelas puede informar la investigación futura en inmunología y biología evolutiva.
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