These form when bacteria like Proteus mirabilis, Proteus vulgaris, and Morganella morganii use the enzyme, urease, to split urea into ammonia and carbon dioxide.
当细菌如变形杆菌、普通变形杆菌、摩根氏菌存在时就会形成鸟粪石，细菌利用尿素酶将尿素分解成氨和二氧化碳。
Proteus mirabilis
原声例句
Osmosis-泌尿
英语百科
Proteus mirabilis
![](/Images/godic/202502/04/Proteus_mirabilis_012525.jpg")
![Proteus mirabilis appears as Gram-negative rods after Gram staining under bright-field microscopy with 1000 times magnification.](/Images/godic/202502/04/Proteus_mirabilis2525.jpg")
Proteus mirabilis is a Gram-negative, facultatively anaerobic, rod-shaped bacterium. It shows swarming motility and urease activity. P. mirabilis causes 90% of all Proteus infections in humans. It is widely distributed in soil and water.
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