UROBAKTERIYaHO (az uro… va bakteriyaho), bakteriyahoero guyand, ki karbamidro to ammiak va duoksidi karbon gidroliz meguyaand: SO(NN2)2 + NaO SO2 + 2NN3. Ba urobakteriyaho aerobhoe mansuband, ki dar muhiti ishqorii baland (rN = 9,5) afzoish mekunand. Urobakteriyaho dar khok, peshob, poru, obhoi ravon va gayra zindagi mekunand.