Video: Flagella hauv microbiology yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A flagellum yog ib qho qauv zoo li nplawm uas tso cai rau lub cell txav mus. Lawv muaj nyob rau hauv tag nrho peb lub ntiaj teb no nyob: kab mob, archaea, thiab eukaryota, tseem hu ua protists, nroj tsuag, tsiaj txhu, thiab fungi. Thaum tag nrho peb hom flagella yog siv rau locomotion, lawv yog structurally sib txawv heev.
Tsuas yog li ntawd, flagella yog dab tsi thiab nws hom?
Flagella yog helical zoo li tus qauv uas yog tsim los ntawm subunits ntawm ib tug protein hu ua flagellin. Cov wider cheeb tsam ntawm tus base ntawm lub flagellum hu ua nuv. Muaj plaub hom ntawm flagellar kev npaj. Monotrichous (Mono txhais tau tias ib qho): Ib qho polar flagellum e.g. Vibrio cholerae, Campylobacter spp.
Ib yam li ntawd, flagella staining hauv microbiology yog dab tsi? Cov flagella stain tso cai saib cov kab mob flagella nyob rau hauv lub teeb microscope. Kab mob flagella feem ntau nyias dhau los pom nyob rau hauv cov xwm txheej zoo li no. Cov flagella stains ntiav ib tug mordant los tsho tiv no flagella nrog stain mus txog thaum lawv tuab txaus kom pom.
Ib yam li ntawd, hom kab mob twg muaj flagella?
txawv hom kab mob muaj txawv tus lej thiab kev npaj ntawm flagella . Monotrichous cov kab mob muaj ib ib flagellum (e.g., Vibrio cholerae). Lophotrichous cov kab mob muaj ntau flagella nyob rau tib qhov chaw ntawm lub kab mob nto uas ua nyob rau hauv kev hais kwv txhiaj tsav lub kab mob nyob rau hauv ib qho kev taw qhia.
Vim li cas flagella tseem ceeb rau cov kab mob?
Hauv nonpathogenic kab mob colonization, flagella yog tseem ceeb locomotive thiab nplaum organelles thiab. Hauv ob peb qhov kev sib tw ntawm ob peb kab mob hom muaj, motility los ntawm txoj kev flagella yog qhia kom muab qhov zoo rau ib kab mob.
Pom zoo:
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