脆弱擬桿菌能分解糖,對膽汁耐受。為類桿菌屬的代表株。革蘭氏陰性桿菌,兩端鈍圓而濃染,中間有不著色部份。在正常情況下,它能維持消化系統(tǒng)平衡和機體抵抗力,是免疫系統(tǒng)的驅(qū)動力,已被應(yīng)用于健康領(lǐng)域。脆弱類桿菌專性厭氧、無芽胞、無動力、直徑為0.5×1.3~1.6μm 。專性厭氧菌,氯化血紅素和20%膽汁可促進其生長。牛心、牛腦液血平皿培養(yǎng)48小時,菌落1~3mm ,圓,微凸,灰白,表面光滑,邊緣整齊,大多不溶血。生化反應(yīng)弱,解糖。解酶反應(yīng)陽性,葡萄糖的終末代謝產(chǎn)物有乙酸和琥珀酸;吲哚不定,耐膽鹽,水解七葉靈。不還原硝酸鹽。產(chǎn)生蘋果酸鹽脫氫酶、谷氨酸脫氫酶、葡萄糖6磷酸脫氫酶(g6pdh)、6磷酸葡萄糖脫氫酶(6pgdh)、細(xì)胞壁粘肽層含有二氨基庚二酸。依據(jù)對鼠李糖、海藻糖,甘露醇發(fā)酵及吲哚試驗可區(qū)別本組菌落。DNA的G C含量為39~48%。本菌主要分布于結(jié)腸和口腔中。

Bacteroides fragilis (Veillon and Zuber) Castellani and Chalmers 菌株拉丁名
(ATCC? 23745?) 菌株編號
Strain Designations ATCC菌種 菌種別名: [ICPB 3498, NCTC l0581] /
Type Strain 模式菌株: no /
Biosafety Level 生物安全等級: 2
Deposited As "Sphaerophorus intermedius" Berg and Hovig
Strain Designations 菌種別名 [ICPB 3498, NCTC l0581]
Application 用途 Media testing Quality control strain Quality control strain for API products
Isolation 分離源 Pleural fluid
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.
Product Format 提供形式 freeze-dried
Storage Conditions 保藏方法
Frozen(冷凍物): -80℃ or colder
Freeze-Dried(凍干物): 2℃ to 8℃
Live Culture: See Propagation Section
Preceptrol? yes
Type Strain 模式菌株 no
Comments 注釋 Referred to as the type strain of Sphaerophorus intermedius
Medium 培養(yǎng)基 ATCC? Medium 1490: Modified chopped meat medium
Growth Conditions 生長條件
Temperature 培養(yǎng)溫度 : 37℃
Atmosphere 需氧情況 : Anaerobic gas mixture; 80% N2-10% CO2-10% H2
Name of Depositor 寄存人 B Hovig
Isolation 分離源 Pleural fluid
References參考文獻 Bergan T, Hovig B. A new species, Sphaerophorus intermedius, isolated from empyema. Acta Pathol. Microbiol. Scand. 74: 421-430, 1968. PubMed: 4889145 Zentralbl. Bakteriol., I Abt., Orig. 211: 107-116, 1969.
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