I-petri dish iyisitsha esingashoni, esiyisilinda, esisobala, futhi esivamise ukuba yinyumba esetshenziswa ezindaweni zokucwaninga ukuze kukhuliswe amagciwane, afana namagciwane, isikhunta, noma ezinye izinto ezincane.Siqanjwe ngomsunguli waso, uJulius Richard Petri.Isitsha se-petri ngokuvamile senziwe ngengilazi noma ngepulasitiki ecacile, futhi isivalo saso sikhulu ngobubanzi futhi sijike kancane, okuvumela ukupakishwa kalula kwezitsha eziningi.Isivalo sivimbela ukungcola ngenkathi sisavumela ukugeleza komoya okwanele.Izitsha zePetri zigcwaliswa ngendawo yezakhi, njenge-agar, ehlinzeka ngendawo esekelayo yokukhula kwama-microorganisms.I-nutrient agar, ngokwesibonelo, iqukethe ingxube yemisoco, okuhlanganisa ama-carbohydrate, amaprotheni, nezinye izakhi ezibalulekile ezidingekayo ekukhuleni kwamagciwane.Ososayensi basebenzisa izitsha ze-petri ngezinjongo ezihlukahlukene, okuhlanganisa:Ukuhlakulela ama-microorganisms: Izitsha ze-Petri zivumela ososayensi ukuba benze isiko futhi bakhulise izinhlobonhlobo. ama-microorganisms, angabhekwa ngawodwana noma afundwe ngokuhlanganyela.Ukuhlukanisa ama-microorganisms: Ngokuhlunga isampula esitsheni se-petri, amakholoni ngamanye ama-microorganisms angahlukaniswa futhi afundwe ngokwehlukana.Ukuhlola ukuthinteka kwama-antibiotic: Ngokusetshenziswa kwamadiski afakwe ama-antibiotic, ososayensi banganquma. ukusebenza kwama-antibiotics ngokumelene nama-microorganisms athile ngokubheka izindawo ezivimbelayo ezizungezile ama-disc.Ukuqapha imvelo: Izitsha ze-Petri zingasetshenziswa ukuqoqa amasampula omoya noma angaphezulu ukuze kutholakale ubukhona bamagciwane endaweni ethile.Izitsha zePetri ziyithuluzi eliyisisekelo ku-microbiology amalebhu, esiza ocwaningweni, ekuxilongeni nasekufundeni amagciwane.
