INVESTIGADORES
MARCO Diana Elizabeth
congresos y reuniones científicas
Título:
Explaining the coexistence of N2-fixing and non-fixing rhizobia in the legume-Rhizobium symbiosis using mathematical modelling and experiments.
Autor/es:
DIANA MARCO; GABRIEL MOYANO; DAMIAN KNOPOFF; CRISTINA TURNER; GERMAN TORRES
Lugar:
Huerta Grande
Reunión:
Congreso; 7ma Escuela Argentina de Matemática y Biología BIOMAT; 2016
Institución organizadora:
BIOMAT, CONICET
Resumen:
We analyze the ecology stability of Rhizobium-legume symbiosis, using population dynamic modelsexperimentally based. We include in the model two rhizobial strains differing in their abilityto fix N2 for the plant, and explore the influence of horizontal transfer of symbiotic genes, competitionbetween fix+ and fix- strains for nodulation and nodule co-occupation by the two strains.We also explore the case of potential sanctions applied by the plant to ineffective rhizobia. Ourmodel gives insights to explain the coexistence between fixing and non-fixing strains observed inthe field.
