Isahani ya petri ni ikintu kitaremereye, gifite silindrike, kibonerana, kandi mubisanzwe sterile ikoreshwa muri laboratoire yo guhinga mikorobe, nka bagiteri, ibihumyo, cyangwa ibindi binyabuzima bito.Yiswe uwayihimbye, Julius Richard Petri. Isahani ya petri isanzwe ikozwe mubirahuri cyangwa plastike isobanutse, kandi umupfundikizo wacyo ni munini wa diameter na convex gato, bigatuma ushobora guhunika byoroshye ibyokurya byinshi.Umupfundikizo urinda kwanduza mugihe ugifite umwuka uhagije.Ibiryo bya Petri byuzuyemo intungamubiri, nka agar, itanga ibidukikije bifasha imikurire ya mikorobe.Intungamubiri za agar, kurugero, zirimo uruvange rwintungamubiri, zirimo karubone, proteyine, nibindi bintu byingenzi bisabwa kugirango mikorobe ikorwe. Abahanga mu bya siyansi bakoresha ibyokurya bya petri mu ntego zitandukanye, harimo: Guhinga mikorobe mikorobe: Ibyokurya bya Petri byemerera abahanga mu muco no gukura bitandukanye mikorobe, ishobora kurebwa kugiti cyayo cyangwa kwigwa hamwe. Gutandukanya mikorobe: Mu gutondekanya icyitegererezo ku isahani ya petri, koloni imwe ya mikorobe irashobora kwigunga no kwigwa ukwayo. Kugerageza kwandura antibiyotike: Hifashishijwe disiki zatewe na antibiotique, abahanga barashobora kumenya imikorere ya antibiyotike irwanya mikorobe yihariye yitegereza uturere twabujijwe kuzenguruka disiki.Gukurikirana ibidukikije: Ibyokurya bya Petri birashobora gukoreshwa mugukusanya ibyuka byo mu kirere cyangwa hejuru kugirango hamenyekane ko mikorobe iba ahantu runaka. Ibyokurya bya Petri nigikoresho cyibanze muri mikorobi. laboratoire, ifasha mubushakashatsi, gusuzuma, no kwiga mikorobe.
