Terminid
underlying the importance of SNAREs for both partners of plant-microbe interaction.
· In spite of the well understood role of secreted antimicrobial
compounds and polypeptides at the cell boundary, the transport
route from site of synthesis to the site of action is still a mystery.
SNAREs are supposed to have a fundamental role in plant defense
(Collins et al., 2003). Inactivation of allele AtSYP121 (encodes Qa-
SNARE) and its ortholog HvROR2 in barley have high levels of host
cell entry either by non-adapted fungal species or in the highly
resistant barley mlo mutant allele (Assaad et al., 2004). Absence of
the AtSYP121 gene results in a delay in the formation of localized cell
wall appositions at attack sites of non-adapted powdery mildews,
suggesting that AtSYP121 contributes to the timely establishment of
pathogen-triggered cell wall reinforcements (Assaad et al., 2004).
Besides playing a role during fungal
annaabi.ee 
