Cov txheej txheem:
Video: Dab tsi yog pili ua los ntawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov pilus yog cov plaub hau zoo li cov qauv txuam nrog cov kab mob adhesion thiab cuam tshuam rau cov kab mob colonization thiab kab mob. Pili yog feem ntau tsim ntawm oligomeric pilin proteins, uas npaj helically tsim ib lub tog raj kheej.
Kuj paub, pili yog dab tsi thiab nws txoj haujlwm?
Cov thawj tus qauv sab nraud yog cov pilus (plural: pib ). A pilus yog ib tug nyias, nruj fiber ntau ua los ntawm cov protein uas protrudes los ntawm tus cell nto. Cov thawj muaj nuj nqi ntawm pib yog muab cov kab mob ntawm tes mus rau qhov chaw tshwj xeeb lossis rau lwm lub hlwb. Pili kuj tuaj yeem pab txuas ntawm cov kab mob hlwb.
Ib tug kuj nug, Pili nyob qhov twg? Lawv yog nyob ntawm tus ncej ntawm bacilli thiab tso cai rau gliding motility raws li ib tug khoom nto xws li ib tug tswv tsev cell. Extension thiab retraction ntawm no pib tso cai rau tus kab mob no rub nws tus kheej raws cov khoom nto (saib daim duab.
Kuj paub yog, ob hom pili yog dab tsi?
Hom: Ob hom Pili feem ntau paub tias lawv yog:
- Kev sib deev pili (ntev conjugation pili lossis F pili) thiab.
- Common pili (luv txuas pili kuj hu ua fimbriae).
Dab tsi yog Pili feem ntau siv rau ntawm cov kab mob saum npoo?
Fimbriae . Txhawm rau pib tsim cov biofilm, fimbriae ua yuav tsum txuas kab mob mus tuav nto rau colonization thaum kis kab mob. Ib fimbria yog ib luv pilus uas yog siv mus txuas rau kab mob rau a nto . Tej zaum lawv yog hu ua "sattachment pib ".
Pom zoo:
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