HSPG2 and infection: Expression levels of genes for DGK homologs (CchDGK1 and CchDGK3), a nonspecific PLC (CchNPC6) and also genes related to pathogenesis, such as PR (CchPR1a and CchPR5) were monitored at several infection stages up to 12 hai, given that at this time, the cells showed morphological changes without exhibiting extensive damage or cell death.