A colony-forming unit (CFU, cfu, Cfu) yog ib chav siv hauv microbiology los kwv yees tus naj npawb ntawm cov kab mob uas muaj peev xwm lossis cov kab mob fungal hauv cov qauv. … suav nrog cov colony-forming units yuav tsum tau culturing cov microbes thiab suav xwb cov hlwb siv tau, nyob rau hauv sib piv nrog microscopic soj ntsuam uas suav tag nrho cov hlwb, nyob los yog tuag.
txhais tau li cas los ntawm pawg ua pawg?
Ib pawg neeg tsim, lossis CFU, yog ib chav feem ntau siv los kwv yees qhov concentration ntawm cov kab mob hauv cov qauv ntsuas. Tus naj npawb ntawm cov cheeb tsam pom (CFU) tam sim no nyob rau ntawm lub phaj agar tuaj yeem muab faib ua qhov sib npaug los muab cov txiaj ntsig CFU / ml.
Yuav ua li cas yog lub mis rau colony forming unit?
Piv txwv li, piv txwv li lub phaj ntawm 10^6 dilution yielded suav 130 colonies. Tom qab ntawd, tus naj npawb ntawm cov kab mob hauv 1 ml ntawm cov qauv qub tuaj yeem suav tau raws li hauv qab no: Bacteria/ml=(130) x (10^6)=1.3 × 10^8 lossis 130, 000, 000.
Puas muaj pes tsawg lub hlwb nyob rau hauv ib lub colony forming unit?
Tab sis koj tsis paub, tej zaum yuav yog 2 lossis 3 lub hlwb tsim ib qhocolony. Txij li thaum koj tsis paub meej tshaj li koj qhia tus lej raws li pawg ua pawg lossis cfu ib ml. chav tsev tsim tuaj yeem yog ib lub xov tooj lossis ntau dua. Yog tias koj suav rau hauv lub tshuab kuaj kab mob thiab pom ib tus neeg lub hlwb ces koj tuaj yeem qhia tus lej raws li cov hlwb / ml.
Yuav ua li cas yog colony forming unit erythrocyte?
Lub erythrocyte colony-forming unit (CFU-E) yog ib pob txha tsis tshua muaj(BM) progenitor uas tsim cov erythrocyte colonies hauv 48 teev. Lub hav zoov ntawm CFU-Es yog raws li cov cheeb tsam no, tab sis CFU-Es tsis tau raug purified prospectively los ntawm phenotype.
