Microbe‐derived non‐necrotic glycoside hydrolase family 12 proteins act as immunogenic signatures triggering plant defenses

• DOI: 10.1111/jipb.13337
• Publication Date: 2022-08-04T10:33:30Z
• Authors: Lan Wang; Hanmei Liu; Mingmei Zhang; Yu Ye; Lei Wang; Jinyi Zhu; Zhaodan Chen; Xiaobo Zheng; Yan Wang; Yuanchao Wang
• Keywords: Phytophthora sojae; Immune receptor

Plant pattern recognition receptors (PRRs) are sentinels at the cell surface sensing microbial invasion and activating innate immune responses. During infection, certain apoplastic effectors can be recognized by plant PRRs, culminating in responses accompanied death. However, intricated relationships between activation of death unclear. Here, we studied glycoside hydrolase family 12 (GH12) protein, Ps109281, secreted Phytophthora sojae into apoplast during infection. Ps109281 exhibits xyloglucanase activity, promotes P. infection a manner dependent on enzyme activity. is membrane-localized receptor-like protein RXEG1 triggers various species. Unlike other characterized GH12 members, fails to trigger plants. The loss induction activity closely linked sequence polymorphism N-terminus. This does not affect planta interaction with receptor RXEG1, indicating that response determined using different regions proteins. Such also exists fungal pathogens. Taken together, these results unravel evolution effector sequences underpinning outputs.