METABOLIC CHANGES IN LOTUS JAPONICUS AND LOTUS TENUIS IN RESPONSE TO FUSARIUM SOLANI INFECTION

NIEVA, A.S.; ERBAN A.; FEHRLE I.; KOPKA J.; RUIZ O.A.

CORDOBA

Congreso; XXXII REUNIÓN ARGENTINA DE FISIOLOGÍA VEGETAL - XVI CONGRESO LATINOAMERICANO DE FISIOLOGÍA VEGETAL; 2018

SAFV

The interactions between plants and fungal endophytes could modify thehost performance. Some agents, such as environment, plant species and age couldalter the development of the system and the balance from mutualism topathogenesis. Several compounds involved in different plant metabolitespathways can be modified as response to the interaction with endophytes. Ouraim was focusing in to determinate the homeostasis of metabolite levels in theresponse of two Lotus species to the symptomless infection of Fusariumsolani. Both species were able to be infected by this fungal strain, withcontrasting responses, evidenced in changes in the biomass. The main compoundsinvolved in the primary metabolism have been determined using GC-EI/TOF-MStechnology, on leaves and roots extracts of L. tenuis and L.japonicus infected by F. solani, after 37 days post inoculation.Non-inoculated plants were used as control. The metabolic profiling has shown differencesin the amount of sugars, phosphates, phenylpropanoids and polyols. Our resultsleft in evidence a significant change in the plants primary metabolism andprovide a solid base of study to know more accurately the relationships betweenplants and microorganisms (benefical or pathogenic) and the plant responsesgenerated from them.