Editors' ChoicePlant biology

Move and Countermove

Sci. Signal.  01 Apr 2014:
Vol. 7, Issue 319, pp. ec86
DOI: 10.1126/scisignal.2005312

Receptors on plant cell surfaces are tuned to recognize molecular patterns associated with pathogenic bacteria. Macho et al. found that activation of one of these receptors in Arabidopsis results in phosphorylation of a specific tyrosine residue, which in turn triggers the plant’s immune response to the phytopathogen Pseudomonas syringae. P. syringae counters by secreting a specifically targeted phosphatase, thus stalling the plant’s immune response.

A. P. Macho, B. Schwessinger, V. Ntoukakis, A. Brutus, C. Segonzac, S. Roy, Y. Kadota, M.-H. Oh, J. Sklenar, P. Derbyshire, R. Lozano-Durán, F. G. Malinovsky, J. Monaghan, F. L. Menke, S. C. Huber, S. Y. He, C. Zipfel, A bacterial tyrosine phosphatase inhibits plant pattern recognition receptor activation. Science 343, 1509–1512 (2014). [Abstract] [Full Text]