根瘤菌属：根瘤菌科中一属革兰阴性需氧杆菌，能在豆科植物的根部产生小结节，并与之共生性地固定游离氮- photohmic
- photoinactivation
- photokinesis
- photokinetic
- photokymograph
- photolethal
- photology
- photoluminescence
- photolysis
- photolyte
- photolytic
- photoma
- photomagnetism
- photometer
- photomethemoglobin
- photometry
- photomicrograph
- photomicrography
- photomicroscope
- photomicroscopy
- photomorphogenesis
- photomyoclonic
- photomyogenic
- photon
- photoncia