Mlembi: Roger Morrison
Tsiku La Chilengedwe: 7 Sepitembala 2021
Sinthani Tsiku: 12 Novembala 2024
Anonim
Utoto wa gramu: momwe amapangidwira komanso zomwe amapangira - Thanzi
Utoto wa gramu: momwe amapangidwira komanso zomwe amapangira - Thanzi

Zamkati

Gram stain, kapena Gram yokha, ndi njira yofulumira komanso yosavuta yomwe cholinga chake ndi kusiyanitsa mabakiteriya molingana ndi momwe khoma lawo lilili atakumana ndi utoto wosiyanasiyana ndi mayankho.

Chifukwa chake, pogwiritsa ntchito grata, ndizotheka kutsimikizira, kuwonjezera pa mawonekedwe a bakiteriya, mtundu womwe amapeza, ndipo zotsatirazi ndizofunikira pofotokozera njira zina zodziwira mitundu ya bakiteriya komanso kuti dokotala awonetse chithandizo chodzitetezera malinga ndi mawonekedwe owonera pang'ono.

Kuwononga magalamu kumachitika kawirikawiri mu labotale ndipo ndi gawo la mayeso a bacterioscopy. Mvetsetsani kuti bacterioscopy ndi chiyani ndipo zimachitika bwanji.

Momwe banga la Gram limachitikira

Gram stain ndi njira yachangu, yothandiza komanso yotsika mtengo yozindikiritsa mabakiteriya omwe ali ndi matenda, kukhala othandiza kwa madotolo kuti awonetse chithandizo chodzitetezera ku matenda omwe angachitike, popeza mawonekedwe amtundu wa mabakiteriya amadziwika,


Kujambula kwa gramu kumachitika m'njira 7 zazikulu, komabe pulogalamuyo imatha kusiyanasiyana kutengera labotale:

  1. Ikani mabakiteriya ena pang'onopang'ono, ndikuwonjezera dontho lamadzi kuti magawowa agwirizane;
  2. Lisiyeni liume pang'ono, ndipo tsambalo limatha kudutsa mwachangu pamoto kuti lithandizire kuyanika, komabe ndikofunikira kulabadira kutentha, chifukwa ngati kutentha kuli kotheka ndikotheka kuti pali kusintha pamapangidwe a mabakiteriya, omwe amatha kusokoneza zotsatira za mayeso;
  3. Slide ikauma, vindikirani ndi utoto wonyezimira wa kristalo ndipo mulole ichitepo kanthu kwa mphindi imodzi;
  4. Tsukani chithunzicho ndi madzi othira ndikuphimba chithunzicho ndi lugol, chomwe chili ndi cholinga chokonza utoto wabuluu, ndikuwalola kuti achite kwa mphindi imodzi. Mitundu yonse iwiri ya mabakiteriya imatha kuyamwa zinthu zopangidwa ndi utoto ndi lugol, ndikusintha kukhala buluu;
  5. Kenako, tsambani slide ndi madzi othira ndikumwa 95% mowa, ndikusiya kuti ichitepo kanthu kwa masekondi 30. Mowa ndiomwe umayambitsa kusungunuka kwa lipid nembanemba yomwe imapanga mabakiteriya a gram-negative, motero, kuchotsa zovuta zopangidwa pakati pa utoto ndi lugol, kutulutsa mabakiteriyawa. Komabe, pankhani ya mabakiteriya omwe ali ndi gramu, mowa umasowetsa khoma m'chipinda cha mabakiteriya omwe ali ndi gramu, ndikupangitsa kuti ma pores agwirizane ndikupangitsa kuti asatengeke;
  6. Kenako, iyenera kutsukidwanso pansi pamadzi ndikuphimba chithunzicho ndi utoto wachiwiri, fuchsin kapena safranin ndikuisiya kuti igwire masekondi 30;
  7. Kenako, tsukani chithunzicho pansi pamadzi ndikulilola kuti liume kutentha.

Slideyo ikauma, ndizotheka kuyika dontho la mafuta omiza ndikuwona kutsetsereka kwa microscope ndi cholinga cha 100x, kukhala kotheka kuwona kupezeka kapena kupezeka kwa mabakiteriya, komanso kupezeka kwa yisiti ndi ma epithelial cell.


Ndi chiyani

Kudetsa magalamu kuli ndi cholinga chachikulu chosiyanitsa mabakiteriya molingana ndi zomwe zili pakhoma la cell ndi morpholoji wamba. Chifukwa chake, malinga ndi zomwe zimawonedwa ndi microscope, mabakiteriya amatha kugawa:

  • Mabakiteriya a gram-positive, zomwe zimawonetsedwa ndi utoto wabuluu chifukwa chakuti sizimasambitsidwa ndi mowa, popeza zimakhala ndi khoma lolimba kwambiri ndipo mabowo awo amakhala ocheperako akagwidwa ndi lugol;
  • Mabakiteriya a gram-negative, zomwe zimawonetsedwa ndi utoto wofiirira / wofiirira chifukwa chakutulutsa mtundu wa mowa ndikudetsedwa ndi safranin kapena fuchsin.

Pambuyo pakuwona mabakiteriya omwe ali pansi pa microscope, ndizotheka kuti mayeso ena adzachitika mu labotale kuti azindikire mtundu wa bakiteriya. Komabe, kudzera mu Gram komanso kuyanjana ndi zizindikilo zomwe munthuyo wapereka, adotolo atha kuwonetsa chithandizo chodzitetezera mpaka zotsatira za mayeso ena atapezeka, chifukwa njirayi itha kuchepa kuchuluka kwakubwereza kwa bakiteriya ndikupewa zovuta.


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