在佛罗里达州南部的甘上引起红色腐烂的Colletotrichum falcatum的分子表征和致病性
Fernanda Rodrigues Silva1,2, Mário Lúcio V de Resende2, Larissa Carvalho Ferreira1
1Department of Plant Pathology, University of Florida, Everglades Research and Education Center, Belle Glade, FL 33430-4702, USA.
Journal of fungi (Basel, Switzerland)
|November 26, 2024
概括
由Collettotrichum falcatum引起的红色腐烂病威胁着佛罗里达州的甘. 这项研究证实了病原体在佛罗里达州南部的存在,并确定了耐药的甘品种,以改善作物管理.
科学领域:
- 植物病理学 植物病理学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 红色腐烂病显著降低了甘产量和糖质.
- 致病剂Colletotrichum falcatum此前在佛罗里达州被发现,但缺乏全面的分子和病理数据.
- 有限的信息需要对佛罗里达州的C. falcatum菌株进行详细的描述.
研究的目的:
- 为了全面描述来自佛罗里达州的Colletotrichum falcatum分离物.
- 通过分子标记来确认病原体的身份.
- 评估甘中C. falcatum的致病性和疾病进展情况.
主要方法:
- 从佛罗里达州贝尔格莱德州的三种甘品种中分离出13种C. falcatum菌株.
- 用五种遗传标记 (ITS,ACT,TUB2,GAPDH,CHS-1) 进行了家族遗传学分析.
- 细胞水平的疾病进展记录和病原性评估通过叶子和整个幼苗的注射.
主要成果:
- 遗传学分析证实所有13个分离物都是C. falcatum.
- 致病性测试显示了不同的宿主反应,CP96-1252和CP89-2143品种表现出更强的耐药性.
- 这项研究提供了首份关于C. falcatum在佛罗里达州南部引起红色腐烂的分子和病理学报告.
结论:
- 这项研究证实C. falcatum是佛罗里达州南部甘的重大威胁.
- 已确定耐药的甘品种 (CP96-1252,CP89-2143) 为育种计划提供了潜力.
- 研究结果为红病管理和未来的甘抗药策略提供了关键的见解.
关键词:
在Collettotrichum falcatum的疾病周期中.埃弗格莱德斯 农业区 农业区佛罗里达州 佛罗里达州 佛罗里达州 佛罗里达州叶子护套试验方法分子识别分子识别红色的腐烂是红色的腐烂甘是一种糖,更多相关视频
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