CHIT1 and infection: Early responses of tomato when exposed to the pathogen or its combination with the BCA suggested an overexpression of genes associated with the JA/ET signaling pathway, such as LOXD, CHI3, and PAL. However, in more advanced infection stages on plants either inoculated with Forl or inoculated with Forl and treated with Bs MBI600, marker genes of the SA signaling pathway such as PR-1A and GluA were found to be upregulated, showing a 50–58- and 90–140-fold increases, respectively, in their expression levels.