Qhov sib txawv tseem ceeb ntawm Bradyrhizobium thiab Rhizobium yog Bradyrhizobium yog qhov loj hlob qeeb N2 kho kab mob thaum Rhizobium yog qhov loj hlob sai N 2 kho kab mob kab mob.
Bradyrhizobium thiab Rhizobium yog gram-negative N2 kho cov kab mob hauv av. Bradyrhizobium yog tus kab mob zoo li tus pas nrig uas muaj ib qho subpolar lossis polar flagellum. Bradyrhizobium belongs rau tsev neeg Bradyrhizobiaceae uas muaj 10 genera. Ntawm qhov tod tes, Rhizobium yog tus kab mob zoo li tus pas nrig uas muaj tib lub polar lossis 2-6 peritrichous flagella. Rhizobium belongs rau tsev neeg Rhizobiaceae. Ob leeg ntawm cov kab mob no tsim cov hauv paus nodules ntawm tus tswv tsev cog.
Y Bradyrhizobium yog dab tsi?
Bradyrhizobium yog ib hom kab mob gram-negative av proteobacteria, thiab ntau ntawm cov no kho atmospheric N2 N2 kho yog ib qho tseem ceeb. kauj ruam hauv lub voj voog Nitrogen vim cov nroj tsuag tsis tuaj yeem kho N2 ntawm lawv tus kheej. Cov nroj tsuag tsis tuaj yeem siv huab cua N2 ncaj qha. Lawv nqus nitrogen tebchaw feem ntau nyob rau hauv daim ntawv ntawm nitrates. Bradyrhizobium yog ib tug pas nrig-puab thiab motile kab mob. Lawv feem ntau yog cov kab mob hauv av uas tuaj yeem tsim kev sib raug zoo nrog cov nroj tsuag leguminous xws li taum soya thiab cowpea, qhov chaw uas lawv kho nitrogen hauv kev pauv cov carbohydrates los ntawm cov nroj tsuag.
Daim duab 01: Bradyrhizobium (sab laug) piv rau Meloidogyne galls
hom Bradyrhizobium yog ib feem tseem ceeb ntawm hav zoov av microbial zej zog. Tab sis cov kab mob cais tawm ntawm cov av microbial cov zej zog tsis muaj peev xwm ntawm N2 kho thiab nodulation. Lawv loj hlob qeeb heev hauv qhov sib piv rau hom Rhizobium. Hom Bradyrhizobium ib txwm siv sijhawm 3-5 hnub los tsim kom muaj qhov tsis sib haum xeeb thiab 6-8 teev los ua ob npaug ntawm cov pejxeem loj hauv cov kua nruab nrab. Thaum nruab nrab muaj pentoses raws li cov pa roj carbon monoxide, lawv zoo li loj hlob sai. Qee hom Bradyrhizobium muaj peev xwm ntawm oxidizing carbon monoxide aerobically. Bradyrhizobium siv atmospheric N2 thiab kho rau hauv NH3 (ammonia) lossis NH 4 + (ammonium). Hom Bradyrhizobium muaj cov noob xws li Nif thiab kho rau N2 kho. Tsis tas li ntawd, Bradyrhizobium muaj ntau dua 55 Nod noob uas cuam tshuam nrog nodulation. Qhov ua tiav genome loj ntawm Bradyrhizobium strain Lb8 yog kwv yees li 8.7 Mbp. Cov genome no yog ib lub voj voog chromosome uas muaj 8433 protein-coding noob, suav nrog ib pawg rRNA thiab 51 t RNA noob.
Rhizobium yog dab tsi?
Rhizobium yog ib hom kab mob gram-negative, rod-puab proteobacteria hauv av uas kho N2 Lawv tsim endosymbiotic N2 kho. Kev koom tes nrog cov hauv paus hniav ntawm legumes thiab Parasponia. Cov kab mob no colonize cog cov hlwb thiab tsim cov hauv paus nodules, qhov chaw uas lawv hloov cov atmospheric N 2 rau hauv ammonia siv nitrogenase enzyme. Tom qab ntawd lawv tom qab muab cov organic nitrogenous tebchaw xws li glutamine lossis ureides rau cov nroj tsuag. Cov nroj tsuag, rov qab los, muab cov organic tebchaw uas yog tsim los ntawm photosynthesis rau cov kab mob. Rhizobium ua raws li ntuj chiv rau cov nroj tsuag.
Daim duab 02: Rhizobium
Qee cov kev tshawb fawb txog kev tshawb nrhiav caj ces ntawm cov kab mob sib txawv nrog lawv cov nroj tsuag symbiotic, xws li alfalfa thiab soya taum. Rhizobium leguminosarum muaj lub voj voog loj chromosome thiab tsib plasmids. Lub genome loj ntawm Rhizobium leguminosarum yog kwv yees li 7.7Mbp. Lawv kuj tseem muaj N2 kho cov noob xws li nod, kho, thiab nif, thiab lwm yam, hauv lawv cov genome. Nyob rau hauv molecular biology, Rhizobium tau raug txheeb xyuas tias yog DNA paug ntawm cov khoom siv rho tawm thiab hauv cov dej ntshiab huv.
Dab tsi yog qhov zoo sib xws ntawm Bradyrhizobium thiab Rhizobium?
- Ob tus kab mob no muaj nyob hauv phylum proteobacteria.
- Lawv yog kab mob gram-negative thiab rod-zoo li tus kab mob.
- Ob leeg kho cua sov N2.
- Cov noob xws li nod, kho, thiab nif, thiab lwm yam rau nodulation thiab N2
- Lawv yog ob hom kab mob motile.
- ob leeg muaj chromosomes.
Qhov txawv ntawm Bradyrhizobium thiab Rhizobium yog dab tsi?
Bradyrhizobium yog qhov loj hlob qeeb N 2 kho kab mob. Hauv qhov sib piv, Rhizobium yog qhov loj hlob sai N 2 kho cov kab mob. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm Bradyrhizobium thiab Rhizobium. Txawm li cas los xij, qee qhov hav zoov cov av microbial zej zog hom ntawm Bradyrhizobium tsis kho N 2 Tab sis, ntawm qhov tod tes, feem ntau ntawm hom Rhizobium muaj peev xwm kho tau N 2
Ntxiv mus, Bradyrhizobium muaj ib qho subpolar lossis polar flagellum, thaum Rhizobium muaj tib lub polar lossis 2-6 peritrichous flagella. Yog li, qhov no yog lwm qhov sib txawv ntawm Bradyrhizobium thiab Rhizobium.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm Bradyrhizobium thiab Rhizobium hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Bradyrhizobium vs Rhizobium
Muaj kev sib raug zoo ntawm cov nroj tsuag thiab rhizobial. Rhizobium loj hlob sai thaum Bradyrhizobium loj hlob qeeb. Ob leeg tuaj yeem rov zoo los ntawm cov nroj tsuag legume zoo li cowpea. Rhizobium thiab Bradyrhizobium tsim nodules ntawm tus tswv tsev cog. Lawv ua N2 kho. N2 fixation yog ib qho tseem ceeb heev rau tus tswv tsev cog. Txawm li cas los xij, qee qhov hav zoov cov av microbial zej zog hom Bradyrhizobium tsis kho N2 Yog li, qhov no qhia txog qhov sib txawv ntawm Bradyrhizobium thiab Rhizobium.
