Piv txwv ntawm hom kab mob kho nitrogen no suav nrog hom Azotobacter, Bacillus, Clostridium, thiab Klebsiella. Raws li yav tas los tau sau tseg, cov kab mob no yuav tsum nrhiav lawv tus kheej lub zog, feem ntau yog los ntawm oxidizing organic molecules tso tawm los ntawm lwm yam kab mob los yog decomposition.
YPuas Rhizobium puas yog cov kab mob kho nitrogen?
Cov pab pawg paub zoo tshaj plaws ntawm symbiotic nitrogen-fixing bacteria yog rhizobia. Txawm li cas los xij, ob pawg ntawm cov kab mob xws li Frankia thiab Cyanobacteria tuaj yeem kho nitrogen hauv symbiosis nrog cov nroj tsuag. Rhizobia kho nitrogen hauv cov nroj tsuag ntawm tsev neeg Leguminosae, thiab hom ntawm lwm tsev neeg, xws li. Parasponia.
Ib qho piv txwv ntawm cov txheej txheem kho nitrogen yog dab tsi?
Ob hom kab mob nitrogen-kho cov kab mob tau lees paub: kev nyob dawb (nonsymbiotic) kab mob, suav nrog cyanobacteria (los yog xiav-ntsuab algae) Anabaena thiab Nostoc thiab genera xws li Azotobacter, Beijerinckia, thiab Clostridium; thiab mutualistic (symbiotic) kab mob xws li Rhizobium, txuam nrog leguminous nroj tsuag, …
Dab tsi yog cov kab mob uas muaj nitrogen ntau tshaj plaws?
Nitrogen fixation
Muaj ntau qhov sib txawv ntawm kev sib koom ua ke ntawm nitrogen kho cov kab mob thiab cov hauv paus hniav. Qhov tseem ceeb tshaj plaws ntawm cov no rau kev ua liaj ua teb yog Fabaceae–Rhizobium spp./Bradyrhizobium sp.
Dab tsi yog cov kab mob kho nitrogennpe?
Cov kab mob uas tsis muaj nitrogen-fixing muaj xws li cyanobacteria (los yog xiav-ntsuab algae) piv txwv li, Anabaena, Nostoc, thiab lwm yam, piv txwv li, Azotobacter, Beijerinckia thiab Clostridium.
