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Phomopsis liquidambaris inoculation induces resistance in peanut to leaf spot and root rot
BioControl ( IF 2.5 ) Pub Date : 2020-04-15 , DOI: 10.1007/s10526-020-10013-2
Feng-Min Zhang , Wei He , Chun-Ya Wu , Kai Sun , Wei Zhang , Chuan-Chao Dai

Soil-borne pathogens severely reduce the agricultural yield of peanuts. Accordingly, the application of biocontrol agents for plant disease management is a potentially powerful method for peanut cultivation. This study aimed to (1) evaluate the protective effect of the fungal endophyte Phomopsis liquidambaris for peanut plants against leaf spot disease caused by Colletotrichum gloeosporioides and against root rot disease caused by Fusarium oxysporum under outdoor conditions and (2) explore the potential biological control mechanisms of P. liquidambaris under greenhouse conditions. In our outdoor pot experiments, P. liquidambaris significantly reduced leaf spot and root rot diseases while increasing peanut yields. Under greenhouse conditions, P. liquidambaris–induced resistance against pathogens was associated with increased antioxidant enzyme activity, callose deposition, cell lignification, and phytoalexins accumulation. The demonstrated ability of P. liquidambaris to control disease makes it a strong biocontrol agent candidate.

中文翻译:

拟南芥(Phomopsis liquidambaris)接种诱导花生对叶斑和根腐病的抗性

土壤传播的病原体严重降低了花生的农业产量。因此,将生物防治剂用于植物病害管理是花生栽培的潜在有效方法。这项研究旨在(1)评价真菌内生菌液体拟南芥Phomopsis liquidambaris)对花生植物抵抗由炭疽菌引起的叶斑病和在室外条件下对抗由尖孢镰刀菌引起的根腐病的保护作用,以及(2)探讨潜在的生物学控制机制的P. liquidambaris在温室条件下。在我们的室外锅实验中,P液体的显着减少了叶斑病和根腐病,同时提高了花生产量。在温室条件下,液态拟杆菌对病原体的抗性与抗氧化酶活性增加,antioxidant质沉积,细胞木质化和植物抗毒素积累有关。证明的液态疟原虫防治疾病的能力使其成为强大的生物防治剂候选物。
更新日期:2020-04-15
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