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首页> 外文期刊>Nematropica >SUPPRESSION OF MELOIDOGYNE INCOGNITA BY EXTRACTS AND POWDERED FRUIT OF GLEDITSIA SINENSIS (CHINESE HONEYLOCUST)
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SUPPRESSION OF MELOIDOGYNE INCOGNITA BY EXTRACTS AND POWDERED FRUIT OF GLEDITSIA SINENSIS (CHINESE HONEYLOCUST)

机译：芦荟提取物和粉末状水果对拟南芥的抑制作用（中国蜂蜜）

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Although the Chinese honeylocust (Gleditsia sinensis) is receiving extensive pharmacological investigation because of its use in traditional Chinese medicine, little work has been undertaken to investigate use of G. sinensis products as soil amendments or as sources of nematode-antagonistic phytochemicals. In this study, seed pods (fruit) were dried and ground, and an ethanolic extract was prepared and examined for its effects on egg hatch, movement, and viability of Meloidogyne incognita in in vitro experiments. In addition, the dried fruit powder and the ethanolic extract were both tested in greenhouse experiments for effects on M. incognita populations and on growth of pepper (Capsicum annuum), and the dried fruit powder was also tested on water spinach (Ipomoea aquatica). In the in vitro experiments, concentrations of 1.0 and 10.0 mg/ml ethanolic extract of the fruit powder reduced second-stage juvenile (J2) viability by 96.5% to 98.4%; the higher concentration also suppressed egg hatch by 60.3%. In greenhouse pot tests, M. incognita population densities on pepper and water spinach were not suppressed by amending the soil with fruit powder or drenching with fruit powder extract (the latter tested only on pepper), as indicated by enumeration of galls/g root and eggs/g root. Additionally, G. sinensis fruit powder and extract exhibited phytotoxicity to pepper, resulting in decreased shoot length and fresh weight and root fresh weight. Shoot and root fresh weights of water spinach were also reduced by amendment of fruit powder into soil. Consequently, although G. sinensis produces nematotoxic compounds, neither fruit powder nor fruit powder extract applied to soil demonstrated potential as plant-derived sources for suppressing nematode populations in plant roots. Isolation and identification of the nematode-antagonistic compounds in the fruit of G. sinensis would indicate whether these chemicals are potential sources of biologically based nematicides.
机译：尽管由于其在中药中的应用，中国刺槐（Gleditsia sinensis）正在接受广泛的药理研究，但很少有人进行研究将中华球菌产品用作土壤改良剂或用作线虫拮抗植物化学物质的来源。在这项研究中，将种子荚果（果实）干燥并磨碎，制备了乙醇提取物，并在体外实验中检查了其对虫卵孵化，移动和南方根结线虫活力的影响。此外，干果粉和乙醇提取物均在温室实验中测试了对隐孢子虫种群和辣椒（Capsicum annuum）生长的影响，还对干果粉在水菠菜（Ipomoea aquatica）上进行了测试。在体外实验中，果粉中乙醇提取物的浓度为1.0和10.0 mg / ml，会使第二阶段少年（J2）的生存力降低了96.5％至98.4％;较高的浓度也将卵孵化抑制了60.3％。在温室盆栽试验中，通过用果粉修正土壤或用果粉提取物浸湿（后者仅在胡椒上进行测试）不能抑制胡椒和水菠菜上的隐孢子虫种群密度，如以s / g根和鸡蛋/克根。此外，中华茶果粉和提取物对辣椒具有植物毒性，导致芽长和鲜重及根鲜重减少。通过将果粉添加到土壤中，还可以减少水菠菜的芽和根的鲜重。因此，尽管中华按蚊产生了线虫化合物，但应用于土壤的果粉和果粉提取物均未显示出其作为植物来源抑制植物根中线虫种群的潜力。中华绒螯蟹果实中的线虫拮抗化合物的分离和鉴定将表明这些化学物质是否是生物杀线虫剂的潜在来源。

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