Publication: A regulatory network promotes apoplastic alkalinization to prime plant immunity in tissues distal to site of infection
A regulatory network promotes apoplastic alkalinization to prime plant immunity in tissues distal to site of infection
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Wang, H., Li, X., Zhai, K., Rhodes, J., Sang, T., Zhao, J., Gao, Y., Ma, S., Song, B., Pan, Q., Hu, M., Xin, P., Chu, J., Wang, P., Zipfel, C., & Zhou, J.-M. (2026). A regulatory network promotes apoplastic alkalinization to prime plant immunity in tissues distal to site of infection. Cell, 189(5), 1389-1406.e19. https://doi.org/10.1016/j.cell.2026.01.027
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Immune activation in plants triggers extracellular alkalinization, presumably by inhibiting plasma membrane H-ATPases. The precise role and underlying mechanisms of this process remain poorly understood. Here, we show that Pseudomonas syringae bacteria induce apoplastic alkalinization not only at the site of infection but also in neighboring distal tissues to prime defenses and disease resistance in Arabidopsis. We show that several calcium-dependent protein kinases phosphorylate Ser899 of two major autoinhibited H-ATPases to dampen t
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Wang, H., Li, X., Zhai, K., Rhodes, J., Sang, T., Zhao, J., Gao, Y., Ma, S., Song, B., Pan, Q., Hu, M., Xin, P., Chu, J., Wang, P., Zipfel, C., & Zhou, J.-M. (2026). A regulatory network promotes apoplastic alkalinization to prime plant immunity in tissues distal to site of infection. Cell, 189(5), 1389-1406.e19. https://doi.org/10.1016/j.cell.2026.01.027
