有毒的Beauveria bassiana OR500626菌株有效地控制了Tetranychus urticae的生长
J K Al-Zahrani1,2, M A Osman1,2, L A Aldakheel3
1Imam Abdulrahman Bin Faisal University, College of Science, Department of Biology, Dammam, Saudi Arabia.
概括
一种真菌Beauveria bassiana可以有效地控制双斑蜘蛛,Tetranychus urticae. 这项研究证实了其作为农业生物控制剂的潜力.
科学领域:
- 农业科学 农业科学
- 昆虫学 昆虫学是一门学科.
- 菌群学 菌群学是指菌群学的学科.
背景情况:
- 贝沃里亚巴西安纳是一种用于生物害虫控制的虫病致虫菌.
- 双斑蜘蛛 (Tetranychus urticae) 是一个重要的农业害虫.
- 一种特定的菌株OR500626从红棕虫中分离出来.
研究的目的:
- 为了评估Beauveria bassiana OR500626对双斑蜘蛛的疗效.
- 为了确定B. bassiana在T. urticae上的毒性和感染机制.
主要方法:
- 试管体分析用于计算不同T. urticae生命阶段的LC50值.
- 蜘蛛暴露于不同度的B. bassiana conidia.
- 使用电子显微镜可视化真菌感染和透.
主要成果:
- B. bassiana表现出高毒性,导致生命阶段的死亡率从15.98%到100%.
- LC50值有所不同:不成熟阶段为24.09×103,男性为35.43×103,女性为11.03×103.
- 胞在12小时内粘附于虫,在24-36小时内发芽,并在96小时内透皮质.
结论:
- 贝奥维里亚巴西安娜 (Beauveria bassiana) OR500626是一种强大的生物控制剂,可以对抗Tetranychus urticae.
- 这种真菌有效地感染和杀死蜘蛛,证实了它的农业应用潜力.
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