Objetivo Bacteria have a range of immune mechanisms, but it is unclear why this diverse armamentarium evolved. The most important immune mechanisms are (1) Surface Modification (SM) (2) Abortive infection (Abi) (3) Restriction Modification (R-M) (4) CRISPR-Cas and (5) prokaryotic Argonaute (pAgo), all of which can occur as stand-alone mechanisms or in combination. The individual mechanisms differ in key aspects, such as their fitness costs (constitutive versus inducible), specificity (indiscriminate versus specific), the recipient of the benefits (individual versus group), the speed of de novo resistance evolution (rapid versus slow), and heritability of immunity. Here I will take a combined in vitro and in vivo approach to tease apart the variables that drive the evolution of these diverse stand-alone and integrated bacterial immune strategies in nature, and examine their associated co-evolutionary dynamics. I focus on three ecological variables that are consistently important in host-symbiont co-evolution: (1) force of infection (2) spatial structure (3) presence of mutualists (plasmids). First, I will perform in vitro manipulations using Pseudomonas aeruginosa PA14 variants that carry either single or multiple immune mechanisms. Next, I will sequence metagenomes, transcriptomes and viromes of microbial communities from environments that differ in ecological variables that are important in vitro, to examine their importance in vivo. Key ecological mechanisms identified in the first two parts of the project will be used to guide mesocosm experiments to experimentally confirm that these mechanisms are the drivers of the observed patterns of resistance and co-evolution in nature. Finally, I will share my data with mathematical biologists to generate theoretical models to predict and manipulate the evolution of bacterial immune mechanisms, which will facilitate tailored species protection in agriculture and industry. Ámbito científico natural sciencesbiological sciencesmicrobiologybacteriologynatural sciencesbiological sciencesmicrobiologyvirologynatural sciencesbiological sciencesevolutionary biologymedical and health sciencesbasic medicineimmunologynatural sciencesbiological sciencesgeneticsmutation Palabras clave bacteria phage plasmid surface modification restriction modification CRISPR-Cas prokaryotic argonaute abortive infection Programa(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Tema(s) ERC-2016-STG - ERC Starting Grant Convocatoria de propuestas ERC-2016-STG Consulte otros proyectos de esta convocatoria Régimen de financiación ERC-STG - Starting Grant Institución de acogida THE UNIVERSITY OF EXETER Aportación neta de la UEn € 1 420 837,00 Dirección THE QUEEN'S DRIVE NORTHCOTE HOUSE EX4 4QJ Exeter Reino Unido Ver en el mapa Región South West (England) Devon Devon CC Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 1 420 837,00 Beneficiarios (3) Ordenar alfabéticamente Ordenar por aportación neta de la UE Ampliar todo Contraer todo THE UNIVERSITY OF EXETER Reino Unido Aportación neta de la UEn € 1 420 837,00 Dirección THE QUEEN'S DRIVE NORTHCOTE HOUSE EX4 4QJ Exeter Ver en el mapa Región South West (England) Devon Devon CC Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 1 420 837,00 UNIVERSITY OF OTAGO Nueva Zelanda Aportación neta de la UEn € 62 500,00 Dirección SAINT DAVID STREET 9054 Dunedin Ver en el mapa Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 62 500,00 THE UNIVERSITY OF LIVERPOOL Reino Unido Aportación neta de la UEn € 15 000,00 Dirección BROWNLOW HILL 765 FOUNDATION BUILDING L69 7ZX Liverpool Ver en el mapa Región North West (England) Merseyside Liverpool Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 15 000,00