Video: Puas yog E coli loj hlob ntawm EMB agar?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Tsuas yog cov kab mob gram-negative loj hlob ntawm EMB agar . Cov kab mob gram-positive raug txwv los ntawm cov dyes eosin thiab methylene blue ntxiv rau agar . Vim tias muaj zog fermentation ntawm lactose thiab tsim tawm ntau ntau ntawm cov kua qaub, cov cheeb tsam ntawm Escherichia coli cov pom tsaus nti thiab xiav-dub nrog cov xim ntsuab xim hlau.
Yooj yim li ntawd, cov kab mob dab tsi tuaj yeem loj hlob ntawm EMB agar?
Qee qhov txawv ntawm Salmonella thiab Shigella yuav tsis loj hlob ntawm EMB Agar. Ib txhia gram -tus kab mob, xws li tus kab mob enterococci , staphylococci , thiab cov poov xab yuav loj hlob ntawm qhov nruab nrab no thiab feem ntau yog tsim kom pom tseeb thaj chaw. Cov tsis muaj kab mob, tsis muaj cov kab mob lactose-fermenting yuav loj hlob ntawm qhov nruab nrab no.
Ib qho ntxiv, vim li cas E coli tig ntsuab rau EMB? Nyob EMB yog E . coli cov yog zus nws yuav muab cov xim sib txawv ntsuab sheen (vim yog cov yam ntxwv metachromatic ntawm cov xim, E . coli cov txav siv flagella, thiab muaj zog acid kawg cov khoom ntawm fermentation).
Yooj yim heev, Escherichia coli loj hlob ntawm EMB agar?
Eosin Methylene Xiav ( EMB ) agar yog ob qho tib si xaiv thiab sib txawv nruab nrab kab lis kev cai. EMB media pab hauv kev sib txawv ntawm kev pom Escherichia coli cov , lwm yam nonpathogenic lactose-fermenting enteric gram-negative rods, thiab Salmonella thiab Shigella genera.
E coli loj hlob rau agar hom twg?
Xaiv kev nthuav tawm xov xwm rau E. coli
| Khoom No. | Lub Npe |
|---|---|
| 70143 | Mac Conkey Agar No. 1 |
| 19352 | Mac Conkey Agar No. 1, Vegitone |
| 94216 | MacConkey Agar nrog Crystal Violet, Sodium Chloride thiab 0.15 % Bile Salts |
| M8302 | MacConkey Agar nrog Crystal Violet, Sodium Chloride thiab 0.15 % Bile Salts |
Pom zoo:
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