鉴定,致病机制和控制Stagonosporopsis cucurbitacearum导致瓜子中收获后果腐烂的病原体
Xue Zhang1, Jinxin Liu1, Wen Yan2
1College of Plant Protection, Northeast Agricultural University, Harbin, China.
Pest management science
|May 19, 2025
概括
一种新的真菌,Stagonosporopsis cucurbitacearum,导致中国西瓜的收获后果腐烂. 有效的防治包括使用卡本达津或特布可纳杀菌剂,并在储存期间将西瓜与其他水果分开.
科学领域:
- 植物病理学 植物病理学
- 菌类学 菌类学是指菌类学.
- 农业科学 农业科学
背景情况:
- 收获后的水果腐烂对瓜子 (Cucumis melo L.) 产量产生了重大影响.
- 一种新的致病性真菌,Stagonosporopsis cucurbitacearum,已被确定导致2023年中国的水果腐烂.
研究的目的:
- 确定和描述在中国收获后瓜子果腐烂的病原体.
- 为了研究Stagonosporopsis cucurbitacearum的致病机制.
- 评估化学杀菌剂对控制这种疾病的有效性.
主要方法:
- 从受感染的瓜子水果中隔离和识别真菌.
- 酶活性测定用于评估细胞壁降解.
- 使用carbendazim和tebuconazole的真菌杀菌剂疗效试验.
主要成果:
- Stagonosporopsis cucurbitacearum被证实是中国收获后瓜子水果腐烂的致病因.
- 这种真菌产生细胞壁降解酶,导致肉软化和快速增殖.
- 卡本达齐姆和特布可纳显著抑制了真菌发芽,并将疾病发病率降低了约70%.
结论:
- 卡本达齐姆和特布可纳是有效的杀菌剂,用于管理瓜子上的Stagonosporopsis cucurbitacearum.
- 这些杀菌剂的收获前应用和收获后的水果分离是推的控制策略.
- 了解致病机制有助于制定有针对性的疾病管理策略.
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