Cryptococcus neoformans yog encapsulated poov xab uas predominately kis immunocompromised cov tib neeg. Kab mob siab yog ib qho tsis pom zoo rau tus kab mob cryptococcal.
Puas Cryptococcus neoformans loj hlob ntawm chocolate agar?
neoformans tsim kev pom kev pom kev thaj yeeb. Hauv ASC thiab chocolate agar , mucous colonies tsim ntawm 37° C , whereas ntawm 28° C , lawv tau. pasty thiab creamy. Qhov luaj li cas ntawm cov cheeb tsam yog, nyob rau hauv tag nrho cov bacteriological xov xwm thiab kub ua hauj lwm, me dua uas tau pom nyob rau Sabouraud agar, siv los tswj.
Cryptococcus neoformans loj hlob li cas?
Cryptococcus neoformans hlob vegetatively li budding poov thiab tuaj yeem pom nyob rau hauv tsob ntoo hollows thiab pigeon guano. Thaum lub sij hawm kev sib deev, Cryptococcus hloov los ntawm cov poov xab loj hlob mus rau hyphal loj hlob.
Dab tsi yog morphology ntawm Cryptococcus neoformans?
Morphology. neoformans yog ib qho encapsulated, ib puag ncig poov xab. Cryptococcus neoformans yog ib puag ncig lossis oval poov xab ntsuas 4-6 µm hauv txoj kab uas hla, ib puag ncig los ntawm cov tshuaj ntsiav uas tuaj yeem ncav cuag 30 µm tuab.
Puas yog Cryptococcus neoformans gram zoo?
Nyob rau hauv xws li stained npaj, nws yuav tshwm sim xws li ib puag ncig hlwb nrog Gram-positive granular suav nrog impressed raws li daj ntseg lavender cytoplasmic keeb kwm yav dhau los yog Gram-negative lipoid lub cev. Thaum loj hlob raws li poov xab, C.neoformans muaj cov tshuaj capsule uas muaj feem ntau ntawm polysaccharides.
