SOBER1 phospholipase activity suppresses phosphatidic acid accumulation and plant immunity in response to bacterial effector AvrBsT.

@article{Kirik2009SOBER1PA,
  title={SOBER1 phospholipase activity suppresses phosphatidic acid accumulation and plant immunity in response to bacterial effector AvrBsT.},
  author={Angela Kirik and Mary Beth Mudgett},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2009},
  volume={106 48},
  pages={20532-7}
}
Arabidopsis thaliana ecotype Pi-0 is resistant to Pseudomonas syringae pathovar tomato (Pst) strain DC3000 expressing the T3S effector protein AvrBsT. Resistance is due to a loss of function mutation (sober1-1) in a conserved alpha/beta hydrolase, SOBER1 (Suppressor of AvrBsT Elicited Resistance1). Members of this superfamily possess phospholipase and carboxylesterase activity with diverse substrate specificity. The nature of SOBER1 enzymatic activity and substrate specificity was not known… CONTINUE READING