一种从植物病原菌Fusarium graminearum中分离出来的新型ormycovirus
Haoxin Xie1, Tianbo Liu2, Jun Guo1
1State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agroproducts, Key Laboratory of Biotechnology in Plant Protection of MOA of China, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China.
Archives of virology
|September 18, 2024
概括
研究人员在真菌Fusarium graminearum中发现了一种新型真菌病毒Fusarium graminearum或mycovirus 1 (FgOV1). 这一发现扩大了我们对真菌病毒及其遗传构成的理解.
科学领域:
- 菌类学 菌类学是指菌类学.
- 病毒学 病毒学
- 分子生物学分子生物学
背景情况:
- 菌 (Fusarium graminearum) 是一种重要的植物病原菌.
- 菌类病毒是感染真菌的病毒,可以影响它们的宿主.
- 已知ormycovirus属,但其在F. graminearum中的存在尚未得到证实.
研究的目的:
- 在Fusarium graminearum中识别和表征新型真菌病毒.
- 确定已识别的真菌病毒的遗传构成和遗传关系.
主要方法:
- 病毒RNA片段的隔离和测序.
- 对开放式读取框架 (ORF) 和编码蛋白质的分析.
- 遗传学分析以确定病毒分类.
主要成果:
- 鉴定了一种新的真菌病毒,Fusarium graminearum或真菌病毒1 (FgOV1).
- FgOV1拥有两个RNA段 (RNA1和RNA2),分别编码一个RNA依赖RNA聚合酶和一个假设的蛋白质.
- 遗传学分析将FgOV1置于米病毒类.
结论:
- 这是第一次报告一种感染Fusarium graminearum的ormycovirus.
- FgOV1代表已知的真菌病毒多样性的新增.
- 对FgOV1的表征提供了对ormycovirus演变和宿主病毒相互作用的见解.
相关概念视频
Fungal Group Zygomycota
Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
Fungal Phylum Microsporidia
Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
Fungal Phylum Ascomycota
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...
Fungal Phylum Basidiomycota
Basidiomycota is a diverse phylum of fungi that includes ecologically significant decomposers such as white rot fungi, symbionts like mycorrhizal fungi, plant pathogens such as rusts and smuts, and edible species like Agaricus bisporus (the common button mushroom). These fungi play crucial roles in nutrient cycling, symbiotic relationships, and even human health. Their defining feature is the basidium, a microscopic club-shaped structure responsible for producing basidiospores.Fruiting Bodies...
Subviral Agents
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
Microbe-Plant Interactions
Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...


