Multipartite coevolution shapes plant apoplastic immunity against rice blast fungus
Authors: Takeda, T., Shimizu, M., Kodan, A., Utsushi, H., Kanzaki, E., Natsume, S., Imai, T., Oikawa, K., Abe, A., Terauchi, R.
Date: 2025-07-06 · Version: 1
DOI: 10.1101/2025.07.03.663104 Category: Plant Biology
Model Organism: Multi-species
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The study demonstrates that a beta‑1,3‑glucan‑binding protein from the rice blast fungus Magnaporthe oryzae interacts with the rice thaumatin‑like protein OsPR5, which sequesters the fungal protein to trigger immunity, while the fungus secretes thaumatin‑binding proteins to counteract this defense. Additionally, a rice cell‑surface receptor kinase containing a thaumatin domain has evolved to detect the fungal GBP, highlighting a complex coevolutionary arms race in the rice apoplast.
beta‑1,3‑glucan‑binding protein Magnaporthe oryzae Oryza sativa thaumatin‑like proteins co‑evolutionary immunity