Analysis of the expression of genes related to oxylipin biosynthesis in fusarium verticillioides and maize kernels during their interaction

SFX unipr(opens in a new window)|Order document(opens in a new window)|View at Publisher| Export | Download | More... Journal of Plant Pathology Volume 97, Issue 1, 2015, Pages 193-197 Analysis of the expression of genes related to oxylipin biosynthesis in fusarium verticillioides and maize kernels during their interaction (Article) Scala, V.a , Beccaccioli, M.a, Dall’Asta, C.b, Giorni, P.c, Fanelli, C.a a Department of Environmental Biology, University of Rome Sapienza, Rome, Italy b Department of Organic and Industrial Chemistry, Food Chemistry and Natural Substances Unit, University of Parma, Italy c Istitute of Entomology and Plant Pathology, Catholic University Sacro Cuore, Piacenza, Italy View additional affiliations View references (27) Abstract Fusarium verticillioides is a pathogen that can cause ear and stalk rot in maize. Under suitable environmental conditions, this fungus produces large amount of fumonisins, a potential carcinogenic to humans and animals classified as IARC2B. Recent studies have shown that pathogen and host exchange an oxylipin-based cross talk during their interaction. This study was aimed at investigating whether environmental conditions, namely water activity (aw) at 0.90 and 20°C, which are the thresholds for F. verticillioides development, affect the maize/fungal oxylipin gene expression profile. Fungal Fvlds1-3, Fvlox, Zmlox3 and the maize defense-related ZmPR1 genes significantly changed their expression after infection at 0.90 aw and 20°C. Moreover, the expression of maize genes peaked after that of fungal genes, indicating that, under these experimental conditions, plant and pathogen coordinate the oxylipin gene expression reciprocally. This kind of modulation of fungal and plant gene expression is suggestive of the “zig zag model” proposed for other plant-pathogen interaction systems