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首页> 美国卫生研究院文献>Scientific Reports >Weeding volatiles reduce leaf and seed damage to field-grown soybeans and increase seed isoflavones
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Weeding volatiles reduce leaf and seed damage to field-grown soybeans and increase seed isoflavones

机译：除草挥发物可减少田间种植的大豆对叶片和种子的损害并增加种子异黄酮

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Field experiments were conducted over 3 years (2012, 2013, and 2015), in which half of the young stage soybean plants were exposed to volatiles from cut goldenrods three times over 2–3 weeks, while the other half remained unexposed. There was a significant reduction in the level of the total leaf damage on exposed soybean plants compared with unexposed ones. In 2015, the proportion of damage to plants by Spodoptera litura larvae, a dominant herbivore, was significantly less in the exposed field plots than in the unexposed plots. Under laboratory conditions, cut goldenrod volatiles induced the direct defenses of soybean plants against S. litura larvae and at least three major compounds, α-pinene, β-myrcene, and limonene, of cut goldenrod volatiles were involved in the induction. The number of undamaged seeds from the exposed plants was significantly higher than that from unexposed ones. Concentrations of isoflavones in the seeds were significantly higher in seeds from the exposed plants than in those from the unexposed plants. Future research evaluating the utility of weeding volatiles, as a form of plant–plant communications, in pest management programs is necessary.
机译：在三年内（2012年，2013年和2015年）进行了田间试验，其中一半的年轻大豆植株在2-3周内暴露于来自切碎的金毛的挥发物3次，而另一半则未暴露。与未暴露的大豆植物相比，暴露的大豆植物的总叶片损伤水平显着降低。 2015年，裸露的食草动物斜纹夜蛾幼虫对植物的伤害比例显着低于未暴露的田地。在实验室条件下，切碎的菊科植物挥发物诱导了大豆植物对抗斜纹夜蛾幼虫的直接防御作用，并且至少三种主要化合物切碎的菊科植物挥发物α-，烯，β-月桂烯和li烯参与了诱导。裸露植物的未损坏种子数量明显高于未裸露植物的种子。暴露植物中种子中的异黄酮浓度明显高于未暴露植物中种子中的异黄酮浓度。今后有必要评估除草挥发物作为一种植物与植物的交流形式，在有害生物管理计划中的用途。

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