First, viral P6 suppresses the DRB4/DCL4 node of PTGS (Haas et al., 2008; Shivaprasad et al., 2008), a process that seems to also function in lsm1 and dcp5 judging from the comparably reduced levels of tasiRNAs along de-repression of their targets during infection. Here, LSM1 is linked to infection.