电子转移黄蛋白及其脱酶对于Arthrobotrys oligospora的真菌病原性是必需的
Yonglan Liu1, Zhangyu Li1, Junjie Liu1
1State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China.
International journal of molecular sciences
|October 26, 2024
概括
电子转移黄蛋白 (ETF) 对于诸如Arthrobotrys oligospora之类的线虫捕捉真菌至关重要,影响新陈代谢和捕食行为. 突变破坏了线粒体功能和陷形成,影响了线虫相互作用.
科学领域:
- 生物化学 生物化学
- 菌类学 菌类学是指菌类学.
- 分子生物学分子生物学
背景情况:
- 电子转移黄蛋白 (ETF) 在脂肪酸氧化和氨基酸代谢中至关重要.
- 菌ETF可以通过改变细胞代谢物来影响机会性真菌病原性.
- Arthrobotrys oligospora是一种线虫入侵真菌,具有没有特征的ETF功能.
研究的目的:
- 描述ETF及其脱酶在Arthrobotrys oligospora中的作用.
- 研究ETF突变对真菌代谢和病原性的影响.
- 了解线虫捕获和真菌-线虫相互作用的调节.
主要方法:
- 在Arthrobotrys oligospora中Aoetfα,Aoetfβ和Aoetfdh的基因淘汰/突变.
- 分析线粒体完整性和脂肪酸代谢.
- 对线虫信号和营养物质的反应中陷形成的评估.
- 对线虫捕食活动和吸引力的评估.
主要成果:
- 在Aoetfα,Aoetfβ和Aoetfdh的突变导致严重的线粒体缺陷并阻断脂肪酸代谢.
- 与致病性相关的陷结构被线虫信号和营养物质 (氨,尿素) 抑制.
- 虫捕食活动减少并延迟突变;然而,丰富的营养恢复了Aoetfβ突变的陷形成和活动.
- 由于Aoetfβ的删除,产生了类似于丁酸盐的气味,吸引了Caenorhabditis elegans.
结论:
- ETF及其脱酶对于捕捉线虫的真菌至关重要,调节线粒体新陈代谢.
- 线粒体代谢物波动与真菌病原和线虫相互作用有关.
- ETF功能影响真菌和它们的线虫宿主之间的复杂关系.
相关概念视频
01:29Fungal 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...
01:29Electron Transport Chain Components
1
The electron transport chain is a crucial metabolic pathway facilitating energy conversion in prokaryotic and eukaryotic cells. The ETC comprises four membrane-associated protein complexes that mediate a series of redox reactions located in the inner mitochondrial membrane of eukaryotes and the plasma membrane of prokaryotes. These complexes function by transferring electrons from electron donors, such as NADH and FADH2, to terminal electron acceptors, including oxygen in aerobic respiration...
1
01:15Diversity of Protists I
1
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
1
01:27Diversity of Protists II
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...