Video: Puas yog Bacillus subtilis ferment mannitol?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum lub Bacillus subtilis raug cais tawm ntawm Mannitol Ntsev Agar phaj, xim ntawm lub phaj kuj hloov ntawm liab mus rau daj. Bacillus subtilis tsis muaj peev xwm ferment mannitol thiab tseem lub Mannitol xeem tau txais txiaj ntsig zoo.
Ua kom pom qhov no, Bacillus subtilis puas tuaj yeem ferment lactose?
B . subtilis yog cov kab mob aerobic tab sis muaj peev xwm loj hlob hauv cov xwm txheej anaerobic, thiab muaj qhov kub zoo tshaj plaws ntawm kev loj hlob ntawm 30-39 degrees Celsius. B . subtilis tuaj yeem ferment qabzib, sucrose, tab sis tsis yog lactose.
Ib tug kuj yuav nug, cov kab mob dab tsi tuaj yeem ferment mannitol? Yog hais tias ib tug kab mob muaj peev xwm ferment mannitol, ib tug acidic byproduct yog tsim uas yuav ua rau cov phenol liab nyob rau hauv lub agar tig daj. Feem ntau pathogenic staphylococci cov tsos mob , zoo li Staphylococcus aureus , yuav ferment mannitol. Feem ntau tsis-pathogenic staphylococci cov tsos mob yuav tsis ferment mannitol.
Ib tug kuj nug, puas yog Bacillus cereus ferment mannitol?
Mannitol tsis yog fermented los ntawm cais yog tias kev loj hlob thiab ib puag ncig nruab nrab yog eosin liab. cereus colonies feem ntau yog lecithinase-zoo thiab mannitol - tsis zoo ntawm MYP agar.
Puas yog Bacillus subtilis muaj oxidase?
Gram-positive endospore-forming kab mob Bacillus subtilis muaj Nyob rau hauv aerobic tej yam kev mob, ib tug branched ua pa system muaj xws li ib tug quinol oxidase ceg thiab ib cytochrome oxidase ceg. Lub kaw lus xaus nyob rau hauv ib qho ntawm plaub lwm lub davhlau ya nyob twg oxidases.
Pom zoo:
Gram cov tshuaj tiv thaiv ntawm Bacillus subtilis yog dab tsi?
Bacillus subtilis yog ib hom kab mob, Gram-zoo, kab mob zoo li tus kab mob uas tshwm sim raws li cov saw luv luv, me me clumps, los yog ib lub hlwb
Puas yog Bacillus subtilis loj hlob ntawm MacConkey Agar?
Bacillus subtilis tsis loj hlob ntawm MacConkey Agar. Nws loj hlob ntawm nutrient agar, thiab zoo rau txhua qhov kev ntsuam xyuas enzyme. Enterococcus faecalis tsis mus rau qhov nruab nrab hluavtaws tab sis loj hlob ntawm tryptic soy broth thiab SF broth. Cov kab mob no tsis zoo rau txhua qhov kev kuaj enzyme
Bacillus subtilis nyob qhov twg?
Subtilis) yog Gram-positive, aerobic kab mob. Nws yog rod-puab thiab catalase-zoo. B. subtilis muaj nyob rau hauv cov av thiab lub plab zom mov ntawm ruminants thiab tib neeg
Puas yog B subtilis aerobic lossis anaerobic?
Subtilis tseem feem ntau suav hais tias yog ib qho kev ua haujlwm aerobe, ntau qhov kev tshawb fawb tsis ntev los no tau ua pov thawj tias cov kab mob no yog qhov tseeb facultative anaerobe, uas muaj peev xwm ntawm ob qho tib si fermentation thiab anaerobic ua pa nrog nitrate lossis nitrite siv los ua lub davhlau ya nyob twg electron txais (19, 20). )
Puas yog Bacillus subtilis acid sai sai?
Rau kev sib piv, daim duab sab laug yog Bacillus subtilis, ib qho gram zoo, tsis yog-acid-ceev bacilli. smegmatis, ob qho tib si ntawm cov kua qaub-ceev tab sis qhia qhov tsis muaj zog gram cov tshuaj tiv thaiv