从谷物中分离出来的Fusarium Proliferatum菌株的产生毒素的能力
O P Gavrilova1, A S Orina1, T Yu Gagkaeva1
1All-Russian Institute of Plant Protection, St. Petersburg, 196608 Russian Federation.
Acta naturae
|April 23, 2025
概括
这项研究从谷物中确定了12个Fusarium proliferatum菌株,证实了它们的分类学和异质性交配. 所有菌株都产生了显著水平的烟素,贝奥维里辛和莫尼利福尔菌毒素.
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
- 食品安全 食品安全
背景情况:
- Fusarium proliferatum是一种广泛传播的真菌,感染了各种植物.
- 这种真菌产生了一系列的真菌毒素,含量各不相同.
- 谷物中的菌毒素污染对食品安全构成重大风险.
研究的目的:
- 从分类学上识别Fusarium proliferatum从小麦,麦和玉米粒中分离出来的菌株.
- 为了确定已识别的菌株的交配类型.
- 量化这些菌株的二次毒性代谢物产量.
主要方法:
- 对翻译延长因子EF-1α,β-tubulin和RNA聚合酶II基因片段进行家族遗传学分析,用于菌株识别.
- 为确定交配类型而进行的基因特异性PCR.
- 高性能液体染色学-并联质谱学 (HPLC-MS/MS) 用于毒素量化.
主要成果:
- 通过遗传学分析证实了12个F. proliferatum菌株,形成了一个独特的分类.
- 所有菌株都表现出异体性交配, MAT1-1异形的频率更高.
- 在所有菌株中检测到显著水平的烟素B1,B2,B3,波韦里辛和莫尼利福尔明.
结论:
- 这项研究证实了F. proliferatum从谷物谷物中获得的菌株的同一性和交配特征.
- 所有分析的菌株都能够产生有害的真菌毒素,包括烟素和贝奥维里辛.
- 这项研究强调了在主食作物中与F. proliferatum相关的潜在真菌毒素风险.
更多相关视频
10:01Quantification of Fungal Colonization, Sporogenesis, and Production of Mycotoxins Using Kernel Bioassays
Published on: April 23, 2012
18.0K
09:21Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.
Published on: February 15, 2019
10.4K
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...
01:28Fungal 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...
01:26Fungal 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...
01:18Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
01:12Bacterial Toxins
Bacterial toxins are sophisticated virulence factors that enable pathogenic bacteria to interact with, invade, and damage host tissues. These toxins fall broadly into two types: protein exotoxins, which are secreted into the environment and target specific host receptors, and lipopolysaccharide endotoxins, which are structural components of the bacterial outer membrane released primarily during bacterial lysis or membrane shedding. Exotoxins generally act more selectively, binding to cell...