Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki 761-0795, Japan.
The United Graduate School of Agricultural Sciences, Ehime University, Matsuyama 790-8566, Japan.
Cells. 2021 Sep 10;10(9):2385. doi: 10.3390/cells10092385.
The global population is increasing day by day. To meet the food demand for such a huge number of people, crop production must increase without damaging the environment, and to prevent synthetic chemical herbicides from polluting the environment, controlling weeds using bioherbicides is essential. Accordingly, using phytotoxic substances obtained from plants for biological weed management has attracted attention. The plant possesses phytotoxic compounds that have been previously recorded. Hence, we have conducted this research to characterize more phytotoxic compounds in . Aqueous methanolic extracts of plant significantly restricted the growth of the examined plants lettuce and Italian ryegrass in a species- and concentration-dependent manner. Three active phytotoxic compounds were isolated through various chromatographic methods and identified as compound , , and . Compound exhibited stronger phytotoxic potentials than the other two compounds and significantly suppressed the growth of (cress). The concentration of the compounds required for 50% growth reduction (I value) of the seedlings ranged between 0.0827 to 0.4133 mg/mL. The results suggest that these three phytotoxic compounds might contribute to the allelopathic potential of .
全球人口日益增加。为了满足如此庞大人口的粮食需求，作物产量必须在不破坏环境的情况下增加，为了防止合成化学除草剂对环境造成污染，必须使用生物除草剂来控制杂草。因此，利用植物中提取的具有植物毒性的物质进行生物杂草管理引起了人们的关注。该植物具有先前记录的植物毒性化合物。因此，我们进行了这项研究，以鉴定 中更多具有植物毒性的化合物。植物的水甲醇提取物以物种和浓度依赖的方式显著限制了所检查的植物生菜和黑麦草的生长。通过各种色谱方法分离出三种具有活性的植物毒性化合物，并鉴定为化合物 、 和 。化合物 表现出比其他两种化合物更强的植物毒性潜力，并且显著抑制了 （水芹）的生长。三种化合物对 幼苗生长抑制 50%时的浓度（I 值）范围在 0.0827 至 0.4133mg/mL 之间。结果表明，这三种具有植物毒性的化合物可能有助于 的化感潜力。
