FIG. 1.

Expression of the subtilisin PII during the infection of nematodes. (A) Adhesion and killing of the nematode P. redivivus during infection by the fungus A. oligospora. The numbers of adhered (captured) and killed (captured and not moving) nematodes were counted using a microscope. (B) Results of analysis of transcript levels of PII and tubA, using competitive reverse transcription-PCR. Tubulin was used as a positive control gene fragment and for normalizing the data. ▪, PII transcript level; □, tubA transcript level; ▴, PII-tubA molar ratio.