The purpose of this study was to establish a dual-fluorescent labeling bioassay for screening antifungal agents against anthracnose disease using stable C.gloeosporioides and C.capsici transformants harboring a plasmid encoding thesGFP and the DsRedExpgene
respectively in a new type of whole-cell assay based on a 96-well plate format.
The presence of an active growth inhibitor reduces the level of fluorescent protein
expression in fungal germlings, and thus fluorescence.
Measurement of fungal survival is the basis for the determination of the MIC for each an extract.
The quality of the assay was evaluated using a statistical parameter, Z' factor, to indicate the assay dynamic range and the data variation associated with sample and
control measurement.