無乳鏈球菌為革蘭陽性球菌,單個、成雙、鏈狀排列、長短不一。是乳腺炎的病原體,常存在于乳牛的皮膚、乳頭及乳房內(nèi),通過擠乳人員的手或擠乳機械以及蠅類的機械攜帶而傳播。這種鏈球菌引起乳房炎后不產(chǎn)生明顯免疫力,目前尚無可靠的多價菌苗。革蘭陽性球菌,單個、成雙、鏈狀排列、長短不一。
Streptococcus agalactiae Lehmann and Neumann 拉丁名

(ATCC? 12403?) 統(tǒng)一編號
Deposited As Streptococcus sp.
Strain Designations 別名 Typing strain D136C(3) [3 Cole 106, CIP 82.45]
Isolation 分離基物 Fatal septicemia
Biosafety Level 生物安全等級 2
Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
無乳鏈球菌培養(yǎng)特性:在血瓊脂平板上35 ℃培養(yǎng)18 ~ 24 h ,形成灰白色、表面光滑、有乳光、圓形、β溶血的菌落。部分菌株無β溶血環(huán)。
Antigenic Properties Lancefield's group B, type III
Product Format 提供形式 freeze-dried
Storage Conditions 保藏條件
Frozen: -80°C or colder
Freeze-Dried: 2°C to 8°C
Live Culture: See Propagation Section
Preceptrol? no
Genome Sequenced Strain Yes
Type Strain 模式菌種 no
Antigenic Properties Lancefield's group B, type III
Comments 注釋 Genome sequencing strain
Medium 培養(yǎng)基 ATCC? Medium 44: Brain Heart Infusion Agar/Broth
ATCC? Medium 260: Trypticase soy agar/broth with defibrinated sheep blood
Growth Conditions 生長條件
Temperature 培養(yǎng)溫度: 37°C
Atmosphere 需氧情況: Aerobic
生化反應(yīng): 觸酶試驗陰性,分解海藻糖,不分解山梨醇,馬尿酸鈉、CAMP 和VP 試驗均為陽性,七葉苷和6.5 %NaCl試驗均為陰性。
Name of Depositor 寄存者 RC Lancefield
Chain of Custody 來源國家 ATCC <-- RC Lancefield <-- L Colebrook strain 3 Cole 106
Isolation 分離基物 Fatal septicemia
Cross References 參考文獻 Nucleotide (GenBank) : AX109646 Sequence 379 from Patent WO0123604.
Nucleotide (GenBank) : Z99178 Streptococcus agalactiae partial sodA gene, strain ATCC 12403.
臨床意義:無乳鏈球菌是造成孕婦產(chǎn)褥期膿毒血癥和新生兒腦膜炎的一個重要原因。它寄生在產(chǎn)婦生殖道,可致嬰兒感染的發(fā)生。也可引起產(chǎn)后感染、菌血癥、心內(nèi)膜炎、皮膚和軟組織感染及骨髓炎。