在塞尔维亚首次报告了Aspergillus welwitschiae导致玉米耳腐烂的病例
Milica Nikolic1, Iva Savić2, Ana Nikolic3
1Maize Research Institute Zemun Polje, 229787, Phytopathology, Slobodana Bajica 1, Beograd, Serbia, 11185; mnikolic@mrizp.rs.
Plant disease
|September 13, 2023
概括
气候变化正在增加东南欧洲的Aspergillus物种. 在塞尔维亚,Aspergillus welwitschiae被确定为黑玉米耳的新原因,产生菌毒素.
科学领域:
- 菌类学 菌类学是指菌类学.
- 植物病理学 植物病理学
- 气候变化的影响 气候变化的影响
背景情况:
- 东南欧洲面临气候变化,导致阿斯伯吉勒斯菌种增加.
- 此前曾在塞尔维亚玉米中发现过寄生虫.
- 玉米耳上的黑粉状菌体表明存在Aspergillus section Nigri. 的存在.
研究的目的:
- 在塞尔维亚识别导致黑玉米耳朵腐烂的真菌.
- 用形态学和分子方法来描述孤立的Aspergillus物种.
- 为了确认确定的物种的病原性.
主要方法:
- 从有症状的玉米核中分离和培养真菌.
- 在土豆乳糖,麦芽提取物和Czapek酵母自解酸上的形态特征.
- 使用内部转录间隔器 (ITS) 和calmodulin基因测序进行分子鉴定.
- 使用人工注射对玉米进行致病性测试.
主要成果:
- 获得了20个Aspergillus section Nigri的分离物.
- 分子分析确定这些分离物是Aspergillus welwitschiae.
- 致病性测试证实A.welwitschiae是黑玉米耳朵腐烂的致病原体.
- 这是塞尔维亚和西巴尔干地区首次报告A. welwitschiae.
结论:
- 在塞尔维亚,Aspergillus welwitschiae被确定为一种新型病原体,导致黑色玉米耳朵腐烂.
- 该研究强调了气候变化对真菌病原体出现的影响.
- 建议对A.welwitschiae的攻击性和真菌毒素生产进行进一步的研究.
相关概念视频
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Phylum Ascomycota, a major division within the subkingdom Dikarya, comprises a diverse range of fungal species, including both unicellular yeasts and filamentous molds such as Aspergillus and Penicillium. These fungi thrive in a variety of habitats, from aquatic ecosystems to terrestrial environments, playing crucial ecological and economic roles.Morphology and ReproductionThe defining characteristic of Ascomycetes, commonly referred to as sac fungi, is the ascus—a sac-like structure that...
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