多裂骆驼蓬乙醇提取物的杀菌抑菌试验研究

荒漠植物多裂骆驼蓬（Peganum multisectum (Maxim) Bobr）系蒺藜科的一种多年生草本植物,其种子的乙醇提取物对供试的4种常见细菌和9种植物病菌有较好的杀菌、抑菌活性。研究表明,随着提取液浓度的降低,杀菌、抑菌活性逐渐降低,但延长处理时间,其杀菌、抑菌活性升高,其中对金黄色葡萄球菌(Staphylococcus aureus)和普通变形杆菌 (Proteus vulgaris)的杀菌活性最强,杀菌活性可达90%以上。当用1∶10的种子提取液进行真菌孢子萌发抑制试验时,发现对病原真菌的作用中以对苹果白粉菌和黄瓜白粉菌抑菌活性最显著,其孢子的校正抑制率分别达79.52%和77.71%。实验结果表明,荒漠植物多裂骆驼蓬是潜力很大、有待开发的生物农药药用植物资源。

Bactericidal and Microbiostatic Test of Fungistatic Agent Extracted from Peganum multisectum Bobr by Alcohol

Desert plant,Peganum multisectum(Maxim) Bobr is a perennial herb of Zygophyllaceae.It is found in the bioassay that the fungistatic agent of the alcoholic extracted from the seed of Peganum multisectum had remarkable bactericidal and mycostatic activities on four species of bacteria and nine species of typical plant pathogenic fungi.Our results showed that the bactericidal activity decreased along with the decrease of agent concentration,but increased along with treatment time.Especially,the bactericidal activity of agent was significantly increased to over 90% when treated to Staphylococcus aureus and Proteus vulgarist.When tested by concentration 1:1 of agent,it was shown that the mycostatic activity of agent on Podosphaera leucotricha and sphaerotheca fuliginea was the most significant,which was up to 79.52% and 77.71% respectively.The results showed that desert plant,Peganum multisectum Bobr was a potential plant resource that needs to open and apply.