National Key Laboratory of Smart Farm Technology and System, Key Laboratory of Soybean Biology in Chinese Ministry of Education, College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
Int J Mol Sci. 2023 Nov 20;24(22):16521. doi: 10.3390/ijms242216521.
Symbiotic nodulation between leguminous plants and rhizobia is a critical biological interaction. The type III secretion system (T3SS) employed by rhizobia manipulates the host's nodulation signaling, analogous to mechanisms used by certain bacterial pathogens for effector protein delivery into host cells. This investigation explores the interactive signaling among type III effectors HH103Ω, HH103Ω, and HH103Ω from HH103. Experimental results revealed that these effectors positively regulate nodule formation. Transcriptomic analysis pinpointed as the key gene facilitating this effector-mediated signaling. Overexpression of enhances nodulation, indicating a dual function in nodulation and phosphorus homeostasis. This research elucidates the intricate regulatory network governing -soybean ( (L.) Merr) interactions and the complex interplay between type III effectors.
豆科植物与根瘤菌之间的共生结瘤是一种关键的生物学相互作用。根瘤菌使用的 III 型分泌系统（T3SS）操纵宿主的结瘤信号，类似于某些细菌病原体用于将效应蛋白递送到宿主细胞的机制。本研究探讨了 HH103 中的 HH103Ω、HH103Ω 和 HH103Ω 之间的交互信号。实验结果表明，这些效应器正向调节根瘤的形成。转录组分析确定 为促进这种效应子介导的信号的关键基因。过表达 增强了根瘤的形成，表明其在根瘤形成和磷稳态中具有双重功能。这项研究阐明了调控 -大豆（ (L.) Merr）相互作用的复杂调控网络以及 III 型效应子之间的复杂相互作用。
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