绿肥(GM)通过改善土壤质量和微生物区来增强有机农业,然而,它对植物抗性的影响尚不清楚。研究转基因作物紫菜-玉米轮作系统,在中国被广泛采用的转基因做法,我们的目标是确定玉米对秋季粘虫(FAW)的抗性,节食夜蛾(史密斯),一个主要的害虫。三种施肥处理的温室试验(化肥,GM,和组合)表明,转基因应用显著提高了玉米对一汽的抗性,幼虫喂养偏好和p重量降低证明。通用汽车还丰富了土壤养分,有益的根瘤菌,和抗性相关的化合物,如水杨酸,茉莉酸,和2,4-二羟基-7-甲氧基-1,4-苯并恶嗪-3-酮(DIMBOA),在玉米中。结果表明,转基因改良的土壤和微生物群落在通过增加植物抗性来调节寄主植物对害虫的适应方面可能具有低估的作用。这项研究可以为开发和实施环境友好和可持续的种植系统提供信息,以增强对病虫害的抵抗力。
Green manure (GM) enhances organic agriculture by improving soil quality and microbiota, yet its effects on plant resistance are unclear. Investigating the GM crop hairy vetch-maize rotation system, a widely adopted GM practice in China, we aimed to determine maize resistance to fall armyworm (FAW), Spodoptera frugiperda (Smith), a major pest. Greenhouse experiments with three fertilization treatments (chemical fertilizer, GM, and a combination) revealed that GM applications significantly improved maize resistance to FAW, evidenced by reduced larval feeding preference and pupal weight. GM also enriched soil nutrients, beneficial rhizobacteria, and resistance-related compounds, such as salicylic acid, jasmonic acid, and 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), in maize. The results suggest that GM-amended soils and microbial communities may have an underestimated role in regulating host plant adaptation to pests by increasing plant resistance. This study can provide information for developing and implementing environmentally friendly and sustainable cropping systems with enhanced resistance to pests and diseases.