López-Rodríguez Ariadna, Hernández Martha, Carrillo-Galvez Adrian, Becerra José, Hernández Víctor
Laboratorio de Química de Productos Naturales, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.
Centro de Biotecnología, Facultad de Ciencias Forestales, Universidad de Concepción, Chile.
Nat Prod Res. 2023 Mar;37(5):769-775. doi: 10.1080/14786419.2022.2081851. Epub 2022 May 26.
Despite its worldwide relevance as an invasive plant, there are few studies on (gorse) and its allelopathic activity is almost unexplored. The allelochemical profile of gorse was analysed through methanolic extract of pods and roots, and its phytotoxic effects on germination. The methanolic extract of pods had no effect in germination, while extract of roots resulted in a U-shaped dose-response curve: reducing the germination at concentration 0.5 mg mL. GC-MS analysis detected compounds with proven antimicrobial and antioxidant activities in the pods and cytotoxic compounds in the roots, which could explain the bioassay results. The quinolizidine alkaloids (QAs) composition was evaluated to predict possible biological functions. It showed the presence of QAs in gorse that are absent in their native range, indicating broad defense strategies against bacteria, fungi, plants, and insects in the Chilean ecosystem. This could explain the superiority of gorse in the invaded areas.
尽管作为一种入侵植物具有全球相关性，但关于金雀花的研究却很少，其化感活性几乎未被探索。通过豆荚和根的甲醇提取物分析了金雀花的化感物质谱，及其对种子萌发的植物毒性作用。豆荚的甲醇提取物对种子萌发没有影响，而根提取物产生了U形剂量反应曲线：在浓度为0.5毫克/毫升时降低了种子萌发率。气相色谱-质谱联用（GC-MS）分析在豆荚中检测到具有已证实的抗菌和抗氧化活性的化合物，在根中检测到细胞毒性化合物，这可以解释生物测定结果。对喹诺里西啶生物碱（QAs）的组成进行了评估，以预测其可能的生物学功能。结果表明，金雀花中存在其原生范围内不存在的QAs，这表明在智利生态系统中，金雀花对细菌、真菌、植物和昆虫具有广泛的防御策略。这可以解释金雀花在入侵地区的优势。
