豚からブタに伝染する菌群の特徴
Jinping Fan1,2, Mengzhen Song1,2, Yanguang Ling1,2
1College of Animal Sciences and Technology, Huazhong Agriculture University, Wuhan, China.
Microbiology spectrum
|August 25, 2025
まとめ
豚の排泄物や陰道はブタの腸内真菌の源であり,豚の排泄物が主な原因である. この研究は 母から子へと菌が伝染し 豚の腸の健康に 影響を及ぼしていることを示しています
科学分野:
- 獣医学
- 微生物学
- 動物科学
背景:
- 新生児の腸内微生物群は 免疫の発達に不可欠です
- 腸内微生物の母から子への感染は 極めて重要ですが 菌類のコミュニティは 十分に研究されていません
- 乳母からブタの子への 菌媒介の理解は 幼児の腸の健康にとって 鍵となるものです
研究 の 目的:
- 豚の,豚の糞,そして小豚の糞の真菌群の特徴について
- 豚からブタへの真菌の感染経路を調査する.
- 支配的なキノコの分類と 豚の健康への潜在的影響を特定する.
主な方法:
- 12匹の母猪と12匹の新生児から糞とのサンプルを採取した.
- 内部転写されたスペーサー1 (ITS1) rRNA遺伝子配列は,真菌群の分析に使用された.
- 迅速な期待最大化微生物源追跡 (FEAST) を用いて,真菌の起源を決定した.
主要な成果:
- 雌豚の排泄物には 菌類の多様性が最も高く 豚の排泄物に次いで 雌豚の排泄物があります
- 2つのグループでは,キノコのベータ多様性の有意な違いが観察されました.
- 豚の排泄物の真菌群は,母猪の排泄物 (47. 1%) と母猪の陰道 (4. 2%) によって著しく影響を受けた.
- アスコミコタとバシディオミコタは,すべてのサンプルタイプで支配的な属体でした.
- 6つのコア・キノコの属/種がブタからブタ仔に感染する可能性があると特定された.
結論:
- の糞とは 豚の腸菌の貯蔵庫として機能します
- 豚からブタに真菌が垂直に伝染していることは明らかです.
- 特定された菌類は,豚の腸内微生物群の発達と健康に重要な役割を果たす可能性があります.
関連する概念動画
Bacterial Phylum Spirochaetes
1.5K
Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased...
1.5K
Bacterial Phylum Actinobacteria
854
Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
854
Bacterial Phylum Bacteroidota
885
The phylum Bacteroidota includes over 700 species classified into four primary orders: Bacteroidales, Cytophagales, Flavobacteriales, and Sphingobacteriales. These gram-negative, non-sporulating rods exhibit saccharolytic capabilities and can be aerobic or fermentative, encompassing obligate aerobes, facultative aerobes, and obligate anaerobes. Many species display gliding motility, though some are nonmotile or use flagella. The genus Bacteroides is well-studied due to its significant role in...
885
Atypical Pneumonia
84
Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease...
84
Bacterial Gastroenteritis
88
Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid...
88
Clinical Significance of Antibiotic Resistance
90
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
90


