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在Ophiostomataceae中塑造酵母菌形态发生的原生和生态作用
Khaled Abdrabo El-Sayid Abdrabo1, Guan Jie Phang2, Yu-Hsuan Fan2
1Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung city, Taiwan; Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Egypt.
Fungal biology
|January 16, 2026
概括
在Ophiostomataceae中的真菌变态,在酵母和菌形式之间切换的能力,可能起源于共同的祖先,并与它们的生态生活方式有关,包括致病和菌相互作用.
科学领域:
- 菌类学 菌类学是指菌类学.
- 进化生物学 进化生物学
- 菌类遗传学 菌类遗传学
背景情况:
- 奥菲奥斯托马氏家族包括各种各样的真菌,表现出酵母-菌二态.
- 这种二态性对于病原性 (例如,荷兰树病) 和共生 (例如,草真菌) 生活方式至关重要.
- 了解二态的作用是真菌适应能力和生态功能的关键.
研究的目的:
- 研究Ophiostomataceae属的二态和真菌生活方式之间的相互作用.
- 为了确定家族内部的进化起源和二形态的模式.
- 为了探索二态化与草生活方式之间的相关性.
主要方法:
- 培养了六个Ophiostomataceae属 (Raffaelea,Harringtonia,Leptographium,Ophiostoma,Heinzbutinia,Esteya) 代表了四种生活方式.
- 在标准化条件下评估酵母形态型的生长,DL-proline作为唯一的源.
- 分析了变态的进化史和遗传信号.
主要成果:
- 除了一个外,所有测试的菌株都显示出酵母形态型增长的增加 (≥50%).
- 各种物种对注射器大小的反应各不相同,这表明物种之间存在差异.
- 两形态可能在共同的祖先中进化,并显示出强烈的家族遗传信号,在血统中保持存在或丧失.
结论:
- 模态是Ophiostomataceae的一个祖先特征,在血统中保存.
- 在这个家族中,二形态和草生活方式在进化上是相关的.
- 这种相互作用显著塑造了Ophiostomataceae的进化轨迹.
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