Video: Puas yog cov kab mob gram tsis zoo loj tuaj ntawm cov ntshav agar?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kev cais tawm thiab kev txheeb xyuas
MacConkey thiab qov av feem ntau yog siv los cais tawm grams - cov kab mob tsis zoo , uas feem ntau loj hlob tsis pub dhau 24 mus rau 48 teev thiab tom qab ntawd sib txawv raws lub hauv paus ntawm cov kab mob morphology thiab cov tshuaj lom biochemical. Pasteurella spp
Tsis tas li lo lus nug yog, kab mob dab tsi loj hlob ntawm cov ntshav agar?
Ntshav Agar tau siv los cog ntau yam kab mob tshwj xeeb tshaj yog cov uas nyuaj rau loj hlob xws li Haemophilus influenzae, Streptococcus Pneumoniae thiab Neisseria hom. Nws kuj tseem yuav tsum tau txheeb xyuas thiab sib txawv cov kab mob haemolytic, tshwj xeeb Streptococcus hom.
Tsis tas li, qhov twg pom cov kab mob tsis zoo hauv Gram? Cov Gram - cov kab mob tsis zoo suav nrog feem ntau ntawm kab mob ib txwm pom nyob rau hauv lub plab zom mov uas tuaj yeem ua lub luag haujlwm rau cov kab mob xws li gonococci (venereal kab mob) thiab meningococci ( kab mob meningitis). Cov kab mob ua lub luag haujlwm rau tus kab mob cholera thiab bubonic plague yog Gram - tsis zoo.
Kuj paub yog, dab tsi yog morphology ntawm gram tsis zoo kab mob?
Lawv yog tus yam ntxwv ntawm lawv lub hnab ntawv xovtooj ntawm tes, uas yog tsim los ntawm cov peptidoglycan cell phab ntsa nyias ntawm ib sab hauv cytoplasmic cell membrane thiab cov kab mob sab nrauv. Cov kab mob gram-negative tau pom nyob txhua qhov chaw, hauv txhua qhov chaw ib puag ncig hauv Ntiaj Teb uas txhawb nqa lub neej.
E coli tuaj yeem loj hlob ntawm cov ntshav agar?
Ua coli yog gram-negative bacillus uas loj hlob zoo ntawm kev siv xov xwm nquag. Nws yog lactose-fermenting thiab beta-hemolytic qov agar . Feem ntau Ua coli Cov kab mob tsis muaj pigmented. Escherichia coli cov ntawm Gram stain.
Pom zoo:
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