MMP11 and infection: After infection with B. cinerea, the expression levels of SlLapA, SlPI-I and SlPI-II in pTRV2-GUS-infiltrated plants were significantly increased, whereas the levels in pTRV2-Sl3-MMP-infiltrated plants remained unchanged, comparable to those in the mock-inoculated plants but showing 3-5 folds of decreases as compared with those in B. cinerea-infected pTRV2-GUS-infiltrated plants (Fig. 8b).