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Un atlas global de las bacterias dominantes encontradas en el suelo
Manuel Delgado-Baquerizo1,2, Angela M Oliverio3,4, Tess E Brewer3,5
1Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA. m.delgadobaquerizo@gmail.com noah.fierer@colorado.edu.
Science (New York, N.Y.)
|January 20, 2018
Resumen
A pesar de la inmensa diversidad bacteriana del suelo, una pequeña fracción de los filotipos bacterianos dominan a nivel mundial. Este estudio identifica estos taxones clave, creando una lista fundamental para futuras investigaciones de microbios del suelo.
Área de la Ciencia:
- Microbiología
- Ecología
- Ciencias del suelo
Sus antecedentes:
- Las comunidades bacterianas del suelo exhiben una gran diversidad, lo que dificulta la caracterización global.
- Comprender las bacterias dominantes del suelo es crucial para el funcionamiento del ecosistema.
Objetivo del estudio:
- Identificar taxones bacterianos consistentemente abundantes en las comunidades mundiales de suelos.
- Para crear el primer atlas global de taxones bacterianos dominantes del suelo.
- Proporcionar una lista específica para futuros esfuerzos genómicos y de cultivo.
Principales métodos:
- Análisis de muestras de suelo de 237 ubicaciones en seis continentes.
- Identificación y cuantificación de los filotipos bacterianos.
- Agrupación de taxones dominantes en grupos ecológicos.
Principales resultados:
- Aproximadamente 500 filotipos bacterianos (2% del total) constituyen consistentemente casi la mitad de las comunidades bacterianas del suelo en todo el mundo.
- Un pequeño número de taxones bacterianos son globalmente abundantes a pesar de la diversidad general.
- Se construyó el primer atlas global de taxones bacterianos dominantes del suelo.
Conclusiones:
- Un conjunto central de taxones bacterianos es globalmente abundante en los suelos.
- Esta lista de "los más buscados" facilita la investigación específica sobre los microbios del suelo.
- Los hallazgos avanzarán en la comprensión de las funciones microbianas en los procesos ecosistémicos.
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