Qhov txawv ntawm Bacillus subtilis thiab Bacillus cereus yog Bacillus subtilis yog fermenting mannitol, tab sis nws tsis muaj peev xwm tsim enzyme lecithinase thaum Bacillus cereus tsis fermenting mannitol, tab sis nws tsim enzyme lecithinase.
Bacillus yog ib hom kab mob gram-zoo, rod-zoo li tus kab mob. Lawv yog cov tswv cuab ntawm phylum Firmicutes. Muaj 266 hom npe. Bacillus hom tuaj yeem yog cov pa oxygen-dependent obligate aerobes lossis facultative anaerobes. Bacillus hom tsim endospores. Cov tsiaj no tuaj yeem txo lawv tus kheej mus rau oval endospores thiab tuaj yeem nyob twj ywm rau ntau xyoo. Cov endospores tiv taus tshav kub, hluav taws xob, desiccation, thiab tshuaj tua kab mob. Bacillus subtilis thiab Bacillus cereus yog ob hom ntawm no genus Bacillus.
Bacillus Subtilis yog dab tsi ?
Bacillus subtilis yog cov kab mob gram-positive, rod-shaped, mannitol-fermenting kab mob uas tsis muaj peev xwm tsim cov enzyme lecithinase. Nws kuj yog catalase zoo. Cov kab mob no feem ntau pom muaj nyob rau hauv cov av thiab txoj hnyuv ntawm cov ruminants thiab tib neeg. Cov kab mob no ua rau tawv thiab tiv thaiv endospore. Qhov no tso cai rau nws zam qhov hnyav ib puag ncig. B. subtilis tau raug cais raws li lub luag haujlwm aerobe keeb kwm txawm tias muaj pov thawj los ua pov thawj tias nws yog facultative anaerobe. Nws yog ib qho ntawm cov kab mob zoo tshaj plaws uas tuaj yeem siv rau hauv kev tsim cov enzyme secreted. Yog li ntawd, nws tau koom nrog hauv kev lag luam nplai biotechnological productions. Ntxiv mus, tus kab mob no yog ib hom kab mob uas nrov heev. Nws tsim cov kab dawb nyob rau hauv cov zaub mov agar.
Daim duab 01: Bacillus subtilis
B. subtilis tuaj yeem faib symmetrically los ntawm binary fission los ua ob tug ntxhais hlwb. Lub endospore ntawm cov kab mob no tuaj yeem ua haujlwm tau ntau xyoo thiab tiv taus cov xwm txheej tsis zoo xws li dej qhuav, salinity, huab cua pH, hluav taws xob, thiab cov kuab tshuaj. Cov kws tshawb fawb tau kawm txog kev rov ua dua tshiab ntawm ib lub voj voog chromosome ntawm cov kab mob no ua qauv kab mob thiab tau pom tias qhov kev rov ua dua ntawm B. subtilis nce mus txog ob sab, thiab kev rov ua dua yuav raug txiav tawm vim muaj qhov sib lawv liag hauv thaj tsam terminus ntawm DNA (Ter site) ntawm cov kab mob no.. Tsis tas li ntawd, B. subtilis genome muaj txog 4, 100 genes. Cov txheej txheem hloov pauv ntawm cov kab mob ntuj kuj tuaj yeem pom hauv cov kab mob no. Hauv lwm cov tshuaj, cov kab mob no yog siv los simulate ib qho kev tiv thaiv kab mob dav dav. Nws qhib lub zais ntawm cov tshuaj tiv thaiv tshwj xeeb xws li IgM, IgG thiab IgA thiab induces interferon IFN-α / IFNγ uas qhia cytotoxicity rau cov qog. Cov tshuaj tua kab mob bacitracin kuj tau raug cais tawm thawj zaug los ntawm B. subtilis. Tsis tas li ntawd, nws yog dav siv rau kev tsim cov enzymes, xws li amylase thiab protease. Nws kuj yog siv los ua probiotics thiab av inoculants, thiab bio fungicides hauv kev ua liaj ua teb.
Bacillus Cereus yog dab tsi ?
Bacillus cereus yog gram-positive, rod-shaped mannitol non-fermenting kab mob uas tsim cov lecithinase enzyme. Nws kuj yog ib qho facultatively anaerobic, motile, beta haemolytic spore-forming kab mob. Nws feem ntau pom muaj nyob hauv av thiab zaub mov. Qee hom ntawm lawv yog cov kab mob pathogenic heev thiab ua rau cov zaub mov muaj mob rau tib neeg. Cov kab mob phem ntawm cov kab mob no muaj xws li cereolysin thiab phospholipase C. Qee hom muaj txiaj ntsig zoo li probiotics.
Daim duab 02: Bacillus cereus
Ib tug neeg ntawm Bacillus cereus tuaj yeem ua ob npaug ntawm lawv tus lej ntawm 30 ° C hauv 20 feeb nyob ntawm cov khoom noj. B. cereus tsim tawm cov kab mob dawb hauv cov khoom noj agar. Lub genome loj ntawm B. cereus yog nyob ib ncig ntawm 5-7.9, nrog kwv yees li 5397 noob. Tsis tas li ntawd, cov kab mob no kuj muaj ib lub voj voog chromosome.
Dab tsi yog qhov zoo sib xws ntawm Bacillus Subtilis thiab Bacillus Cereus ?
- Bacillus subtilis thiab Bacillus cereus yog ob hom kab mob uas muaj nyob rau hauv genus Bacillus.
- Ob leeg yog gram-zoo thiab pas nrig-puab.
- Lawv yog motile.
- Lawv muaj flagella.
- Ob leeg yog cov kab mob beta-haemolytic.
- Lawv tsim endospores.
- Ob leeg muaj txiaj ntsig zoo li probiotics.
Qhov txawv ntawm Bacillus Subtilis thiab Bacillus Cereus yog dab tsi?
Bacillus subtilis yog fermenting mannitol, tab sis nws tsis muaj peev xwm tsim cov enzyme lecithinase. Ntawm qhov tod tes, Bacillus cereus tsis yog fermenting mannitol, tab sis nws tsim cov enzyme lecithinase. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm Bacillus subtilis thiab Bacillus cereus. Tsis tas li ntawd, Bacillus subtilis yog non-pathogenic rau tib neeg. Tab sis Bacillus cereus yog pathogenic rau tib neeg. Yog li, qhov no yog lwm qhov sib txawv ntawm Bacillus subtilis thiab Bacillus cereus.
Cov hauv qab no suav nrog qhov sib txawv ntawm Bacillus subtilis thiab Bacillus cereus hauv daim ntawv teev npe.
Summary – Bacillus Subtilis vs Bacillus Cereus
Bacillus yog ib hom kab mob gram-zoo thiab tus pas nrig. Bacillus subtilis thiab Bacillus cereus yog ob hom kab mob uas muaj nyob hauv genus Bacillus. Bacillus subtilis yog cov kab mob uas tsis muaj kab mob uas ferments mannitol, tab sis nws tsis muaj peev xwm tsim cov enzyme lecithinase. Hauv qhov sib piv, Bacillus cereus yog cov kab mob pathogenic uas tsis ferment mannitol tab sis tsim cov enzyme lecithinase. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm Bacillus subtilis thiab Bacillus cereus.
