INVESTIGADORES
CASATI Paula
artículos
Título:
Transcriptional and Metabolic Changes Associated to the Infection by Fusarium verticillioides in Maize Inbreds with Contrasting Ear Rot Resistance
Autor/es:
VALERIA A. CAMPOS-BERMUDEZ; CAROLINA M. FAUGUEL; MARCOS A. TRONCONI; CASATI P.; DANIEL A. PRESELLO; ANDREO, CARLOS SANTIAGO
Revista:
PLOS ONE
Editorial:
PUBLIC LIBRARY SCIENCE
Referencias:
Lugar: San Francisco; Año: 2013 vol. 8 p. 61580 - 61580
ISSN:
1932-6203
Resumen:
Fusarium verticillioides causes ear rot and grain mycotoxins in maize (Zea mays L.), which are harmful to human and animalhealth. Breeding and growing less susceptible plant genotypes is one alternative to reduce these detrimental effects. Abetter understanding of the resistance mechanisms would facilitate the implementation of strategic molecular agricultureto breeding of resistant germplasm. Our aim was to identify genes and metabolites that may be related to the Fusariumreaction in a resistant (L4637) and a susceptible (L4674) inbred. Gene expression data were obtained from microarrayhybridizations in inoculated and non-inoculated kernels from both inbreds. Fungal inoculation did not produceconsiderable changes in gene expression and metabolites in L4637. Defense-related genes changed in L4674 kernels,responding specifically to the pathogen infection. These results indicate that L4637 resistance may be mainly due toconstitutive defense mechanisms preventing fungal infection. These mechanisms seem to be poorly expressed in L4674;and despite the inoculation activate a defense response; this is not enough to prevent the disease progress in thissusceptible line. Through this study, a global view of differential genes expressed and metabolites accumulated duringresistance and susceptibility to F. verticillioides inoculation has been obtained, giving additional information about themechanisms and pathways conferring resistance to this important disease in maize.