Biofumigation is an environmentally friendly strategy used to control nematodes and plant diseases. The volatile oil of Zanthoxylum bungeanum has high insecticidal and antibacterial activity. However, it is not known if the seed of Z. bungeanum is a suitable material for biofumigation to control southern root-knot nematodes (SRKN) on tomato, and how it may regulate the soil bacterial community structure. We used pot experiments in the greenhouse to determine the effects of Z. bungeanum seeds on SRKN, plant growth parameters, soil physicochemical and microbial characteristics. A total of 26 volatile components, including nematicidally active substances, were identified from Z. bungeanum seeds. Z. bungeanum seed biofumigation significantly reduced the SRKN population by 88.89% and 81.55% on the 50th and 100th day after transplanting, respectively. Compared to the control, the total soluble sugar, soluble solids, soluble protein, titratable acid, root activity and the fruit yield per tomato plant increased significantly. The content of soil alkali-hydrolyzed nitrogen, available potassium and the soil enzyme activities were also significantly increased. The soil bacterial diversity and the co-occurrence network complexity were increased by Z. bungeanum seed biofumigation. Relatively more keystone OTUs in biofumigation soil had potential plant growth-promoting capabilities. The function of Z. bungeanum seed increasing tomato production in SRKN-infected soil depends on directly killing SRKN and improving soil properties. These results indicate that Z. bungeanum seed can be used as both a nematicide and a high quality organic fertilizer in tomato production.

生物熏蒸是一种用于控制线虫和植物病害的环保策略。花椒的挥发油具有很高的杀虫和抗菌活性。然而，如果该种子它不知道花椒是合适的，以控制对番茄南方根节线虫（SRKN）材料生物熏蒸，以及它如何可调节土壤细菌群落结构。我们在温室中使用盆栽实验来确定Z. bungeanum种子对SRKN，植物生长参数，土壤理化和微生物特性的影响。从Bungeanum种子中鉴定出总共26种挥发性成分，包括杀线虫活性物质。蹦极种子生物熏蒸在移植后第50天和第100天分别使SRKN种群分别减少88.89％和81.55％。与对照相比，每株番茄的总可溶性糖，可溶性固形物，可溶性蛋白，可滴定酸，根系活性和果实产量显着增加。土壤碱解氮，速效钾含量和土壤酶活性也显着提高。Bungeanum种子生物熏蒸增加了土壤细菌多样性和共现网络的复杂性。生物熏蒸土壤中相对更多的主要OTU具有潜在的促进植物生长的能力。蹦极犬的功能在受SRKN感染的土壤中增加番茄产量的种子依赖于直接杀死SRKN和改善土壤特性。这些结果表明，在番茄生产中，邦氏芽孢杆菌种子既可以用作杀线虫剂又可以用作高质量的有机肥料。