Transcriptional changes in Aspergillus flavus-infected maize kernels

ABSTRACT: Maize kernels are susceptible to infection by the opportunistic pathogen Aspergillus flavus. Infection results in reduction of grain quality and contamination of kernels with the highly carcinogenic mycotoxin, aflatoxin. To understand host response to infection by the fungus, transcription of approximately 9,000 maize genes were monitored during the host-pathogen interaction with a custom-designed Affymetrix GeneChip® DNA array. More than 1,000 maize genes were found differentially expressed at a fold change of 2 or greater. This included the up regulation of defense-related genes and signaling pathways. Transcriptional changes also were observed in primary metabolism genes. Starch biosynthetic genes were down regulated during infection, while genes encoding maize hydrolytic enzymes, pres

ORGANISM(S): Zea mays

SUBMITTER: Gary Payne 

PROVIDER: E-GEOD-57629 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress