鉴定和生物控制一种致病性Aspergillus niger,导致果中软腐烂Marc Marc unshiu
Meng-Ping Huang1, Jiang-Sheng He1, Yi Tu1
1College of Smart Agriculture/Institute of Special Plants, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
Antonie van Leeuwenhoek
|January 15, 2026
概括
这项研究确定了Aspergillus niger作为一个关键的病原体,导致普通中的软腐烂. 酵母Debaryomyces nepalensis显示出作为对抗这种真菌病的生物控制剂的巨大潜力.
科学领域:
- 植物病理学 植物病理学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 果产业因收获后的软腐烂病而面临重大经济损失.
- 用于控制的化学杀菌剂引起了人们对病原体耐药性和环境影响的担忧.
- 在类植物疾病管理中,急需安全和可持续的替代方案.
研究的目的:
- 隔离和识别导致普通 (Citrus unshiu Marc) 软腐烂的主要病原体.
- 评估对抗性酵母酵母Debaryomyces nepalensis作为对已识别的病原体的生物控制剂的有效性.
- 研究生物控制剂对类水果宿主防御反应的影响.
主要方法:
- 使用形态和分子分析将致病真菌分离和识别.
- 通过对普通果进行人工注射实验来确认致病性.
- 对Debaryomyces nepalensis和一种商用药物 (Bacillus amyloliquefaciens) 对尼日尔菌诱导的软腐烂的生物控制疗效的评估.
- 通过测量酶活性 (CAT,POD,SOD) 和总糖含量来评估宿主防御反应.
主要成果:
- 黑色虫被确定为普通菜软腐烂的致病原体,在9天内导致100%的疾病发病率.
- 无论是Debaryomyces nepalensis (22.98%的疗效) 还是Bacillus amyloliquefaciens (31.54%的疗效) 在注射后15天显著降低了软腐烂的严重程度.
- 生物控制治疗导致防御酶 (CAT,POD,SOD) 的活性增加,并维持了受感染水果的总糖含量.
结论:
- 尼帕林菌是一种有效的生物控制剂,可以对抗阿斯伯吉路斯尼日尔诱导的普通话软腐烂.
- 生物控制机制涉及引发类水果宿主防御反应.
- 这项研究提供了一种可持续的替代化学杀菌剂,用于管理类软腐烂病.
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