Qhov sib txawv tseem ceeb ntawm nostoc thiab oscillatoria yog tias nostoc yog filamentous cyanobacterium uas qhia gliding txav, thaum oscillatoria yog filamentous cyanobacterium uas qhia oscillatory zog.
Cyanobacteria yog cov kab mob prokaryotic, unicellular, thiab photoautotrophic kab mob. Vim lawv qhov xwm txheej thoob plaws ntiaj teb, lawv tuaj yeem tiv taus txhua qhov chaw ib puag ncig nrog rau kev hloov pauv sai. Cyanobacteria feem ntau hu ua xiav-ntsuab algae. Lawv feem ntau yog microscopic thiab pom nyob rau hauv txhua hom dej, xws li dej tshiab, brackish, thiab marine dej. Tsis tas li ntawd, cov kab mob no siv hnub ci los ua lawv cov zaub mov. Nostoc thiab Oscillatoria yog ob hom ntawm filamentous cyanobacteria.
Nostoc yog dab tsi?
Nostoc yog cov kab mob cyanobacterium filamentous uas qhia txog kev txav mus los. Nws muaj nyob hauv ntau qhov chaw. Nostoc tsim cov colony muaj li ntawm filaments ntawm moniliform hlwb. Cov cell no yog nyob rau hauv gelatinous sheath. Lub npe Nostoc tau coined los ntawm Paracelsus, uas yog ib tug Swiss alchemist. Nostoc feem ntau tuaj yeem pom hauv av, pob zeb ntub dej, hauv qab ntawm cov pas dej, hauv qab ntawm cov dej ntws, thiab hauv cov chaw nyob hauv hiav txwv (tsis tshua muaj). Qee zaum, nws kuj tuaj yeem loj hlob symbiotically hauv cov ntaub so ntswg ntawm cov nroj tsuag. Nws muab nitrogen rau cov nroj tsuag zoo li tus tswv los ntawm kev ua ntawm N2 kho los ntawm cov hlwb sib txawv hu ua heterocysts.
Daim duab 01: Nostoc
Cov cyanobacteria no muaj cov xim photosynthetic hauv lawv cov cytoplasm. Los ntawm photosynthetic pigments, lawv ua lawv tus kheej cov zaub mov. Thaum Nostoc nyob hauv av, nws tsis pom meej. Tab sis tom qab los nag, nws swells mus rau hauv ib tug conspicuous jelly loj, yog li nws yog ib zaug xav tias tau poob saum ntuj thiab tau txais cov npe nrov xws li lub hnub qub jelly, troll butter, witch butter lossis witch's jelly. Tsis tas li ntawd, Nostoc hom muaj cov proteins thiab vitamin C. Yog li ntawd, Nostoc hom tau cog thiab noj feem ntau hauv cov tebchaws Esxias xws li Tuam Tshoj.
Oscillatoria yog dab tsi ?
Oscillatoria yog ib hom kab mob cyanobacterium uas qhia tau tias oscillatory txav. Qhov tseeb, nws yog lub npe hu ua nws oscillation zog. Nyob rau hauv lub oscillation zog, cov filaments nyob rau hauv lub colonies swb rov qab thiab tawm tsam ib leeg. Qhov no tshwm sim kom txog thaum tag nrho cov huab hwm coj reoriented rau nws lub teeb qhov chaw. Oscillatoria feem ntau nyob hauv cov dej troughs dej. Nws feem ntau yog xiav-ntsuab lossis xim av-ntsuab hauv xim. Oscillatoria yog ib yam kab mob uas rov tsim dua los ntawm kev tawg. Nws tsim ntev filaments ntawm cov hlwb uas tawg mus rau hauv fragments. Cov fragments no hu ua hormogonia. Hormogonia tuaj yeem loj hlob mus rau hauv cov filaments tshiab, ntev dua. Tag nrho cov txheej txheem no tshwm sim hauv cov pas dej tshiab.
Daim duab 02: Oscillatoria
Oscillatoria siv photosynthesis kom ciaj sia. Txhua filament ntawm Oscillatoria muaj ib tug trichome. Trichome muaj ib kab ntawm cov hlwb. Ntxiv mus, lub trichome tuaj yeem oscillate zoo li lub pendulum. Oscillatoria siv nyob rau hauv lub ntuj tsim ntawm butylated hydroxytoluene (BTH). BTH yog ib qho antioxidant. Tsis tas li ntawd, nws kuj yog siv los ua zaub mov additive thiab muaj tshuaj.
Dab tsi zoo sib xws ntawm Nostoc thiab Oscillatoria?
- Nostoc thiab Oscillatoria yog ob hom ntawm filamentous cyanobacteria.
- ob leeg yog cov kab mob prokaryotic.
- Lawv tuaj yeem ua lawv tus kheej cov zaub mov los ntawm photosynthesis.
- Ob leeg tuaj yeem kho cua sov N2.
- Lawv ob leeg nyob hauv dej.
- Ob leeg yug dua tshiab.
Qhov txawv ntawm Nostoc thiab Oscillatoria yog dab tsi?
Nostoc yog ib hom kab mob ntawm cov kab mob filamentous cyanobacteria uas qhia txog kev txav mus los. Oscillatoria yog ib tug genus ntawm filamentous cyanobacteria uas qhia oscillatory zog. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm nostoc thiab oscillatoria. Tsis tas li ntawd, Nostoc muaj heterocysts thaum oscillatoria tsis muaj heterocysts.
Cov hauv qab no infographic teev qhov sib txawv ntawm nostoc thiab oscillatoria hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.
Summary – Nostoc vs Oscillatoria
Cyanobacteria yog cov kab mob prokaryotic, unicellular, thiab photoautotrophic kab mob. Nostoc thiab Oscillatoria yog ob hom ntawm filamentous cyanobacteria. Nostoc qhia gliding zog thaum oscillatoria qhia oscillatory zog. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm nostoc thiab oscillatoria.
