Legumes muaj peev xwm tsim tau kev sib raug zoo nrog nitrogen-kho av kab mob hu ua rhizobia. Qhov tshwm sim ntawm qhov symbiosis no yog tsim cov nodules ntawm cov nroj tsuag hauv paus, nyob rau hauv uas cov kab mob yuav hloov atmospheric nitrogen rau hauv ammonia uas yuav siv tau los ntawm cov nroj tsuag.
Yuav ua li cas cov nroj tsuag leguminous hloov nitrogen?
Cov hauv paus ntawm cov nroj tsuag leguminous muaj nitrogen kho cov kab mob xws li Rhizobium, cov kab mob no siv los hloov atmospheric nitrogen rau nitrate kom cov nroj tsuag tuaj yeem nqus cov nitrate thiab siv lawv. Yog li cov nroj tsuag leguminous pab hauv replenishing nitrogen hauv av.
Puas nitrogen kho tau los ntawm cov nroj tsuag?
Stage 1: Nitrogen Fixation
Yuav tsum tau siv los ntawm cov nroj tsuag, N2 yuav tsum tau hloov los ntawm cov txheej txheem hu ua nitrogen fixation. Fixation hloov nitrogen nyob rau hauv qhov chaw rau hauv cov ntaub ntawv uas cov nroj tsuag tuaj yeem nqus tau los ntawm lawv cov hauv paus system.
Yuav ua li cas tsiaj leguminous nroj tsuag kho nitrogen?
Ob yam ntawm nitrogen-fixing microorganisms raug lees paub: dawb-nyob (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, cuam tshuam nrog cov nroj tsuag leguminous, …
cov nroj tsuag leguminous pab nitrogen fixation li cas?
cov nroj tsuag Leguminous muaj cov kab mob rhizobium, uas nyob hauv nwshauv paus nodules. Cov no cov kab mob no hloov cov cua nitrogen rau hauv nitrites thiab nitratesuas tuaj yeem siv tau los ntawm cov nroj tsuag thiab yog li, pab kho nitrogen.
