Lysobacter enzymogenes prevents Phytophthora infection by inhibiting pathogen growth and eliciting plant immune responses.
Lysobacter enzymogenes prevents Phytophthora infection by inhibiting pathogen growth and eliciting plant immune responses.
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DOI：
10.3389/fpls.2023.1116147
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发表时间：
2023
影响因子：
5.6
通讯作者：
中科院分区：
文献类型：
--
作者：
疫霉病原体对重要的农业植物造成巨大损害。这组丝状病原体在系统发育上与真菌相距甚远，因此大多数化学杀菌剂难以控制它们。产酶溶杆菌 OH11 (OH11) 是一种生物防治细菌，可分泌 HSAF（热稳定抗真菌因子）作为广谱抗真菌武器。在这里，我们证明 OH11 还可以控制由三种主要卵菌（大豆疫霉、辣椒疫霉和致病疫霉）引起的多种植物疫霉病害。我们提供了丰富的证据证明，OH11通过抑制菌丝生长、消化包囊、抑制包囊萌发和引发植物免疫反应，保护宿主植物免受疫霉病原体感染。有趣的是，前两个过程需要 HSAF 的存在，而后两个过程则不需要。这表明产酶乳杆菌可以通过多种先前未知的机制预防疫霉属感染。因此，这项研究表明，产酶乳杆菌可以作为一种有前景的替代资源，用于促进植物对多种疫霉病菌的抗性。
The Phytophthora pathogen causes enormous damage to important agricultural plants. This group of filamentous pathogens is phylogenetically distant from fungi, making them difficult to control by most chemical fungicides. Lysobacter enzymogenes OH11 (OH11) is a biocontrol bacterium that secretes HSAF (Heat-Stable Antifungal Factor) as a broad-spectrum antifungal weapon. Here, we showed that OH11 could also control a variety of plant Phytophthora diseases caused by three major oomycetes (P. sojae, P. capsici and P. infestans). We provided abundant evidence to prove that OH11 protected host plants from Phytophthora pathogen infection by inhibiting mycelial growth, digesting cysts, suppressing cyst germination, and eliciting plant immune responses. Interestingly, the former two processes required the presence of HSAF, while the latter two did not. This suggested that L. enzymogenes could prevent Phytophthora infection via multiple previously unknown mechanisms. Therefore, this study showed that L. enzymogenes could serve as a promising alternative resource for promoting plant resistance to multiple Phytophthora pathogens.
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影响因子：
5.6
作者：
He F;Li B;Ai G;Kange AM;Zhao Y;Zhang X;Jia Y;Dou D;Liu F;Cao H
通讯作者：
Cao H
影响因子：
4
作者：
Puopolo, G.;Cimmino, A.;Pertot, I.
通讯作者：
Pertot, I.
影响因子：
4.4
作者：
Qian, Guoliang;Wang, Yulan;Liu, Fengquan
通讯作者：
Liu, Fengquan
影响因子：
2.6
作者：
Ren, Xuexiang;Ren, Shuangshuang;Qian, Guoliang
通讯作者：
Qian, Guoliang
影响因子：
5.2
作者：
Wang J;Shen D;Ge C;Du Y;Lin L;Liu J;Bai T;Jing M;Qian G;Dou D
通讯作者：
Dou D