Gram staining sib txawv cov kab mob los ntawm cov tshuaj lom neeg thiab lub cev ntawm lawv cov phab ntsa ntawm tesGram-zoo hlwb muaj txheej tuab ntawm peptidoglycan nyob rau hauv lub cell phab ntsa uas khaws cov thawj stain, siv lead ua violet. … Qhov no ua rau cov gram-variable thiab gram-indeterminate pawg.
Dab tsi ua rau Gram stain variability?
Qhov raug cov kab mob kub-tso cov kab mob smears rau cov txheeb ze av ntawm 0, 52 thiab 98%, ua raws cov kauj ruam iodine hauv cov txheej txheem Gram qhuav, muaj feem cuam tshuam rau tus nqi ntawm decolorization thaum raug 95% ethyl cawv.
Cov piv txwv ntawm cov kab mob gram variable yog dab tsi?
Cocci: Neisseria gonorrheae, Neisseria meningitidis, thiab Moraxella hom. Bacilli: Escherichia coil, Pseudomonas hom, Proteus hom, thiab Klebsiella hom. Piv txwv ntawm cov kab mob sib txawv ntawm gram muaj xws li: Actinomyces hom.
Vim li cas qee cov kab mob gram negative?
Gram negative bacteria
Qhov no yog vim cov qauv ntawm lawv cov phab ntsa ntawm tes tsis tuaj yeem khaws cov crystal violet stain yog li xim tsuas yog los ntawm safranin counterstain Piv txwv ntawm Gram negative bacteria muaj xws li enterococci, salmonella hom thiab pseudomonas hom.
Dab tsi yog qhov txawv ntawm Gram positive thiab Gram-negative bacteria?
Gram zoo kab mob muaj qhov tuab (20–80 nm) cell phab ntsa raws li lub plhaub sab nraud ntawm tes. Hauv qhov sib piv cov kab mob Gram tsis zoo muaj txheeb ze nyias (<10 nm) txheejntawm phab ntsa ntawm tes, tab sis harbor ib qho ntxiv txheej membrane nrog ob peb qhov pores thiab appendices.
