Use of the Puccinia sorghi haustorial transcriptome to identify and characterize AvrRp1-D recognized by the maize Rp1-D resistance protein.

The common rust disease of maize is caused by the obligate biotrophic fungus Puccinia sorghi. The maize Rp1-D allele imparts resistance against the P. sorghi IN2 isolate by initiating a defense response that includes a rapid localized programmed cell death process, the hypersensitive response (HR).

Molecular Characterization of a Pathogen-Inducible Bidirectional Promoter from Hot Pepper ().

In hot pepper, the sesquiterpene phytoalexin capsidiol is catalyzed by the two final-step enzymes, a sesquiterpene cyclase (EAS) and a hydroxylase (EAH), which are genetically linked and present as head-to-head orientation in the genome. Transcriptomic analysis revealed that a subset of and is highly induced following pathogen infection, suggesting the coregulation of and by a potential bidirectional activity of the promoter (pCaD). A series of the nested deletions of pCaD in both directions verified the bidirectional promoter activity of the pCaD.