Qhov Tseem Ceeb Qhov txawv - Slime Layer vs Capsule
Cov kab mob yog cov kab mob prokaryotic ib leeg-cell microorganisms. Lawv muaj cov qauv sib txawv hauv lub cev yooj yim unicellular. Cov kab mob feem ntau yog nyob ib puag ncig ntawm phab ntsa tuab. Ib txhia muaj ib daim npog ntxiv hu ua lub hnab ntawv. Dua li ntawm phab ntsa ntawm tes, qee cov kab mob muaj cov qauv sab nraud. Ntawm cov qauv sab nraud, glycocalyx yog ib qho tseem ceeb qauv uas muaj cov tshuaj ntsiav thiab slime txheej. Glycocalyx zam cov kab mob kab mob los ntawm phagocytosis, thiab nws pab tsim cov biofilms. Slime txheej yog ib qho tsis muaj kev sib koom ua ke, loosely adhered nyias glycocalyx uas tiv thaiv cov kab mob ntawm cov kab mob los ntawm kev ziab uas cuam tshuam cov as-ham thiab pab tsim biofilm. Capsule yog ib qho kev sib koom ua ke, nruj nreem khi tuab glycocalyx uas pab cov kab mob kom tsis txhob muaj phagocytosis. Qhov no yog qhov sib txawv tseem ceeb ntawm slime txheej thiab capsule.
Slime Layer yog dab tsi?
Slime txheej yog ib qho uas tsis muaj kev sib koom ua ke gelatinous extracellular txheej ntawm cov kab mob. Thaum cov kab mob glycocalyx nyias nyias thiab tsis tshua muaj kev sib cais, nws yog hu ua slime txheej. Slime txheej tsuas yog tiv thaiv kab mob los ntawm lub cev qhuav dej thiab cov tshuaj tua kab mob thiab tsis muaj cov as-ham. Thiab tseem slime txheej pab cov kab mob tsim biofilms.
Daim duab 01: Slime Layer
Slime txheej yog tsim los ntawm exopolysaccharides, glycoproteins, thiab glycolipids. Slime txheej tuaj yeem ntxuav tau yooj yim vim nws cov nplaum nplaum rau ntawm phab ntsa ntawm tes.
Capsule yog dab tsi?
Capsule yog ib qho ntawm cov qauv sab nraud uas muaj qee cov kab mob. Capsules yog tsim los ntawm cov polymers ntawm polysaccharides. Capsule yog cov qauv tsim uas nyuaj heev los ntxuav tawm, tsis zoo li slime txheej. Capsule nyob ib ncig ntawm lub hnab ntawv ntawm cov kab mob, thiab nws nruj nreem khi rau lub hnab ntawv ntawm tes. Capsule yog tuab, thiab nws pab cov kab mob kom tsis txhob phagocytosis. Capsules yog hydrophilic nyob rau hauv cov xwm li nws tiv thaiv kab mob los ntawm desiccation.
Kev tsim cov tshuaj ntsiav yog tswj cov caj ces thiab raug hloov kho ib puag ncig. Capsules muaj ntau qhov ceev, tuab thiab nplaum ntawm cov kab mob sib txawv thiab tej zaum tsim los ntawm cov cell membrane. Capsules muaj ntau yam tshuaj muaj pes tsawg leeg nyob ntawm hom. Lawv yuav muaj cov piam thaj polymers, complex polysaccharides, amino qab zib, qab zib acids, polypeptides ib leeg los yog ua ke.
Capsule suav tias yog qhov ua rau muaj kev phom sij ntawm cov kab mob vim nws lub peev xwm los txhim kho kev khiav tawm ntawm tus tswv tsev tiv thaiv mechanisms thiab ua rau cov kab mob. Straphylococcus aureus yog ib hom kab mob uas tiv thaiv neutrophil phagocytosis vim nws cov tshuaj ntsiav. Lub capsule ntawm Streptococcus pneumoniae yog qhov tseem ceeb uas ua rau mob ntsws. Nws tau pom tias qhov poob ntawm cov tshuaj ntsiav txo qis cov kab mob virus.
Capsules muaj ntau txoj haujlwm. Lawv feem ntau kho kom haum xeeb ntawm cov hlwb rau qhov chaw. Capsules tseem tiv thaiv cov kab mob ntawm cov kab mob los ntawm kev nkag mus los ntawm cov kab mob protozoa lossis cov qe ntshav dawb lossis los ntawm kev tawm tsam los ntawm cov tshuaj tua kab mob. Qee zaum cov tshuaj ntsiav ua cov dej ntawm cov carbohydrates thaum cov kab mob noj nrog cov suab thaj. Lwm cov yam ntxwv tseem ceeb ntawm cov tshuaj ntsiav yog lub peev xwm los thaiv qee cov kauj ruam ntawm cov txheej txheem phagocytosis thiab yog li tiv thaiv cov kab mob ntawm cov kab mob los ntawm kev nkag los yog rhuav tshem los ntawm phagocytes.
Daim duab 02: Cov Kab Mob Kab Mob
Capsules tuaj yeem pom los ntawm cov txheej txheem tsis zoo staining siv Is Nrias tus cwj mem hauv qab lub tshuab tsom. Lub capsule yuav tshwm sim raws li pom tseeb halos nyob ib puag ncig cov kab mob hlwb. Qee qhov piv txwv ntawm cov kab mob encapsulating yog Bacillus antracis, Klebsiella pneumonia, Streptococcus pneumonia, Clostridium perfringens.
Dab tsi zoo sib xws ntawm Slime Layer thiab Capsule?
- Ob txheej slime thiab tshuaj ntsiav yog cov khoom ntawm cov kab mob glycocalyx.
- Ob txheej slime thiab capsule yog cov kab mob virus.
- Ob txheej slime thiab capsule yog cov npog tiv thaiv uas pab cov kab mob.
- Ob txheej slime thiab capsule nyob sab nraum lub hnab ntawv ntawm tes lossis phab ntsa ntawm tes.
- Ob txheej slime thiab capsule tsis yog qhov tseem ceeb rau lub cell viability.
- Capsule thiab slime txheej yog tsim los ntawm polysaccharides.
Qhov txawv ntawm Slime Layer thiab Capsule yog dab tsi?
Slime Layer vs Capsule |
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| Slime Layer yog ib qho tsis muaj kev sib koom ua ke, loosely adhered extracellular polysaccharide txheej nyob ib ncig ntawm cov kab mob cell phab ntsa lossis lub hnab ntawv. | Capsule yog ib qho kev sib koom ua ke, zoo txhais, condensed extracellular txheej uas nruj nreem khi rau lub hnab ntawv ntawm cov kab mob. |
| Muaj nuj nqi | |
| Slime Layer pab cov kab mob ua raws li qhov chaw, tiv thaiv cov kab mob tua kab mob, tsim biofilms, tiv thaiv kab mob los ntawm phab ntsa degrading enzymes thiab bacteriophages. | Kev ua haujlwm ntawm cov tshuaj ntsiav yog tiv thaiv cov kab mob ntawm tes los ntawm kev ua kom qhuav thiab ziab, tiv thaiv kev raug mob thiab kub, txhawb kev txuas mus rau qhov chaw, tiv thaiv phagocytosis, tiv thaiv cov kab mob bacteriophage, muab cov as-ham thiab repulsion los ntawm lwm cov kab mob. hom. |
| kev koom tes | |
| Slime Layer yog ib txheej tsis muaj txheej txheem. | Capsule yog txheej txheej txheej. |
| Thickness | |
| Slime Layer yog txheej nyias. | Capsule yog txheej tuab, tuab. |
| Ua raws li phab ntsa cell | |
| Slime Layer loosely adheres to the cell wall. | Capsule txuas ruaj khov rau ntawm phab ntsa ntawm tes. |
| Pathogenic Factor | |
| Slime Layer pab cov kab mob hauv gliding thiab tiv thaiv lawv ntawm cov tshuaj tua kab mob. | Capsule resists phagocytosis. |
| Rigidity | |
| Slime Layer is less rigid. | Capsule txhav. |
| Muaj peev xwm ntxuav tawm | |
| Slime Layer yog tshem tau yooj yim. | Capsule nyuaj ntxuav. |
Summary – Slime Layer vs Capsule
Qee cov kab mob muaj txheej ntxiv sab nraum phab ntsa ntawm tes hu ua glycocalyx. Glycocalyx yog tsim los ntawm cov khoom siv ntxiv. Nws tiv thaiv cov kab mob los ntawm cov xwm txheej sab nraud thiab txhawb kev ua raws li qhov chaw. Glycocalyx muaj nyob rau hauv ob hom; slime txheej los yog capsule. Slime txheej yog txheej extracellular uas yog xoob txuam nrog cov kab mob cell phab ntsa. Nws yog ib txheej tsawg discrete uas tuaj yeem ntxuav tau yooj yim. Capsule txuas nruj nreem rau ntawm phab ntsa ntawm tes, thiab nws yog txheej tuab tuab. Cov tshuaj ntsiav tsis tuaj yeem tshem tau yooj yim ntawm cov kab mob. Ob txheej slime thiab capsule pab cov kab mob los ntawm desiccation thiab antimicrobial agents. Feem ntau ntawm cov kab mob encapsulated yog cov kab mob, thiab lawv zam los ntawm phagocytosis vim lawv cov tshuaj ntsiav. Qhov no yog qhov txawv ntawm slime txheej thiab capsule.
