Streptococci yog Gram-positive, nonmotile, nonsporeforming, catalase-negative cocci uas tshwm sim hauv khub lossis chains. Cov kab lis kev cai qub yuav poob lawv tus cwj pwm Gram-zoo. Feem ntau cov kab mob streptococci yog facultative anaerobes, thiab qee qhov yog obligate (nruj) anaerobes. Feem ntau xav tau cov xov xwm uas muaj txiaj ntsig (cov ntshav agar).
Puas yog Streptococcus ib txwm gram-zoo?
Streptococci yog gram-zoo aerobic kab mobuas ua rau ntau yam mob, suav nrog pharyngitis, mob ntsws, mob thiab kab mob ntawm daim tawv nqaij, sepsis, thiab endocarditis.
Puas yog pawg A Streptococcus gram-zoo lossis tsis zoo?
Streptococci yog ib pawg loj ntawm gram-positive, nonmotile, non-spore-forming cocci txog 0.5-1.2µm hauv qhov loj. Lawv feem ntau loj hlob nyob rau hauv khub los yog chains thiab tsis zoo rau oxidase thiab catalase. S pyogenes nyiam ua rau cov kab mob ua pa sab sauv thiab ua rau muaj kev phom sij heev vim nws kov yeej lub tswv yim tiv thaiv.
Puas yog Streptococcus thiab staphylococcus gram-zoo?
Gram-positive cocci suav nrog Staphylococcus (catalase-positive), uas loj hlob pawg, thiab Streptococcus (catalase-negative), uas loj hlob hauv chains.
Puas yog txhua tus kab mob streptococci catalase zoo?
Staphylococcus thiab Micrococcus spp. yog catalase zoo, whereas Streptococcus thiab Enterococcus spp. yog catalase negative. Yog tias tus kab mob Gram-positive cocci yog catalase zoo thiab suav tias yog staphylococci, qhov kev sim coagulase feem ntau ua.
