Qhov Tseem Ceeb Qhov txawv - Nostoc vs Anabaena
Cyanobacteria lossis xiav-ntsuab algae yog cov kab mob tseem ceeb hauv ecosystems. Lawv muaj peev xwm ntawm photosynthesizing thiab tsim lawv tus kheej cov zaub mov. Raws li ib tug byproduct ntawm photosynthesis, oxygen gas tso tawm rau cov huab cua. Nws ntseeg hais tias, cyanobacteria yog thawj cov kab mob uas pab tsim kom muaj cov pa oxygen thaum pib lub neej hauv ntiaj teb. Muaj ntau hom cyanobacteria. Ntawm lawv, Nostoc thiab Anabaena yog ob hom. Nostoc yog ib hom cyanobacteria uas tsim cov gelatinous colonies tsim los ntawm filamentous hlwb. Anabaena yog lwm hom filamentous, hlaws zoo li cyanobacterium uas tshwm sim li plankton. Qhov sib txawv tseem ceeb ntawm nostoc thiab Anabaena yog tias cov noob qoob loo ntawm Nostoc tau npog nrog cov ntaub qhwv mucilaginous thaum cov hlwb ntawm Anabaena tsis npog nrog cov ntaub qhwv mucilaginous.
Nostoc yog dab tsi?
Nostoc yog xiav-ntsuab alga lossis cyanobacterium. Nostoc hlwb raug teeb tsa hauv cov saw hlau zoo li cov hlua, thiab nws tsim cov cheeb tsam uas tau them nrog cov kab mob mucilaginous. Nostoc feem ntau pom nyob rau hauv cov dej tseem nyob. Thiab kuj nostoc tuaj yeem pom hauv av. Nostoc muaj ob xim uas muab cov yam ntxwv xiav-ntsuab xim rau Nostoc. Lawv yog xiav phycocyanin thiab liab phycoerythrin. Lwm yam tshaj li ob cov xim no, Nostoc muaj chlorophyll xim rau kev ntes hnub ci thiab photosynthesizing. Nostoc muaj peev xwm kho atmospheric nitrogen. Qhov peev xwm no tau yooj yim los ntawm cov qauv hu ua heterocysts muaj los ntawm Nostoc.
Daim duab 01: Nostoc
Kev tsim tawm ntawm nostoc feem ntau tshwm sim los ntawm kev tawg. Nostoc muaj cov qauv dormant tshwj xeeb lossis cov hlwb kom tiv taus qhov hnyav ib puag ncig. Lawv hu ua akinetes. Akinites yog cov phab ntsa tuab uas muaj peev xwm tiv taus los ntawm desiccation. Nostoc yog ib qho khoom noj muaj txiaj ntsig zoo hauv Asia.
Anabaena yog dab tsi?
Anabaena yog ib qho kab mob cyanobacterium uas muaj xws li beadlike lossis barrellike hlwb tsim rau hauv cov cheeb tsam. Nws yog ib qho filamentous cyanobacterium uas ib txwm muaj li plankton. Nws muaj xws li trichomes. Anabaena hlwb tsis tau them nrog ib tug mucilaginous sheath. Cov noob qoob loo lossis trichomes ntawm Anabaena tau teeb tsa hauv cov saw, thiab lawv tsis muaj ceg.
Nws pom muaj kev sib raug zoo nrog qee cov nroj tsuag. Ib qho dej fern yog Azolla. Lub koom haum ntawm Anabaena nrog cov nroj tsuag muab cov nroj tsuag nitrogen thaum cov nroj tsuag muab carbon rau Anabaena. Yog li ntawd, feem ntau ntawm cov neeg ua liaj ua teb siv Azolla fern uas muaj Anabaena ua cov organic chiv los muab nitrogen rau hauv cov nroj tsuag. Anabaena muaj peev xwm txhim kho atmospheric nitrogen. Nitrogen fixation yog ua los ntawm cov hlwb tshwj xeeb hu ua heterocysts ntawm Anabaena. Heterocysts tsim los ntawm cov noob qoob loo rau lub hom phiaj saum toj no. Anabaena yog photoautotrophic cyanobacterium. Nws ua oxygenic photosynthesis thiab tsim nws cov khoom noj. Thaum lub sijhawm photosynthesis, nws tso pa oxygen rau hauv qhov chaw.
Daim duab 02: Anabaena
Anabaena tuaj yeem pom hauv dej tshiab, thiab nws suav tias yog cov dej haus tsis huv vim nws muab cov ntxhiab tsw thiab saj. Anabaena yog nrov raws li cov neeg tsim khoom ntawm neurotoxins, uas yog cov khoom tsim kev puas tsuaj rau cov tsiaj qus. Zoo ib yam li Nostoc, Anabaena tseem rov tsim dua los ntawm kev tawg. Thiab nws tseem muaj akinetes los tiv thaiv ib puag ncig hnyav.
Dab tsi zoo sib xws ntawm Nostoc thiab Anabaena?
- Nostoc thiab Anabaena yog cov kab mob prokaryotic. Vim li no lawv thiaj tsis muaj lub ntsiab lus tseeb.
- Nostoc thiab Anabaena yog ob hom kab mob.
- Ob Nostoc thiab Anabaena yog filamentous, thiab lawv muaj unbranched trichomes.
- Ob Nostoc thiab Anabaena yog cyanobacteria lossis xiav, ntsuab algae.
- Ob Nostoc thiab Anabaena tuaj yeem kho cov cua nitrogen hauv huab cua.
- Ob Nostoc thiab Anabaena tuaj yeem ua photosynthesis.
- Ob Nostoc thiab Anabaena muaj heterocysts.
- Ob Nostoc thiab Anabaena pom nyob rau hauv qhov chaw ntub dej.
- Nostoc thiab Anabaena yog tib qho kev txiav txim thiab tsev neeg.
- Ob Nostoc thiab Anabaena siv fragmentation raws li ib txoj kev ntawm kev tsim tawm.
- Ob Nostoc thiab Anabaena muaj akinetes rau kev ua siab ntev ntawm ib puag ncig hnyav.
Qhov txawv ntawm Nostoc thiab Anabaena yog dab tsi?
Nostoc vs Anabaena |
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| Nostoc yog ib daim ntawv gelatinous ntawm cyanobacterium, uas yog filamentous. | Anabaena yog ib lub beadlike filamentous cyanobacterium, uas ib txwm muaj xws li planktons. |
| Kev Pom Kev Mucilaginous Sheath | |
| Nostoc muaj cov kab mob mucilaginous. | Anabaena tsis muaj cov ntaub qhwv ntsej muag. |
Summary – Nostoc vs Anabaena
Anabaena thiab Nostoc yog ob cyanobacteria uas tuaj yeem ua kom photosynthesize thiab kho nitrogen. Ob leeg muaj peev xwm ua kom muaj kev sib raug zoo nrog qee cov nroj tsuag. Ob leeg muaj heterocysts thiab akinetes. Ob daim ntawv yog filamentous thiab muaj cov noob qoob loo uas zoo li bead. Ob lub cell cyanobacteria yog teem rau hauv chains. Ob leeg muaj chlorophyll a thiab phycocyanins. Ob leeg nostoc thiab Anabaena reproduces los ntawm fragmentation. Qhov txawv ntawm nostoc thiab Anabaena yog tias Nostoc muaj cov kab mob mucilaginous npog nws cov vegetative hlwb thaum nws tsis tuaj yog Anabaena.
Download the PDF of Nostoc vs Anabaena
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov rub tawm PDF version ntawm no: Qhov txawv ntawm Nostoc thiab Anabaena
