Qhov sib txawv tseem ceeb ntawm chromista thiab protista yog tias chromista yog lub nceeg vaj lom neeg muaj xws li unicellular lossis multicellular eukaryotic hom xws li algae, diatoms, oomycetes, thiab protozoans, thaum protista yog lub nceeg vaj lom neeg muaj xws li unicellular eukaryotic hom. protozoa, protophyta, thiab pwm.
Kev nkag siab txog kev sib raug zoo hauv lub vev xaib khoom noj hauv dej yog qhov tseem ceeb heev rau kev ciaj sia ntawm ib qho chaw nyob. Qee cov kab mob me thiab loj, suav nrog cov kab mob, fungi, nroj tsuag, tsiaj txhu, protista, thiab chromista, ua rau lawv lub tsev nyob rau hauv cov dej ecosystems. Protista thiab chromista feem ntau yog pawg hauv qab plankton. Li no, pawg plankton muaj ob hom unicellular thiab multicellular eukaryotic hom.
YChromista yog dab tsi?
Chromista yog lub tebchaws lom neeg uas muaj unicellular lossis multicellular eukaryotic hom xws li algae, diatoms, oomycetes, thiab protozoans. Nws yog lub nceeg vaj lom neeg uas tau tsim los ntawm British biologist Thomas Cavalier Smith hauv xyoo 1981. Thaum pib, algae yog tib pab pawg suav nrog hauv pawg no. Tab sis tom qab ntawd, qee qhov protozoans kuj tau suav nrog, thiab lub nceeg vaj tshiab xws li Plante thiab Animalia tau tsim. Chromista muaj cov pawg hauv qab no: heterokonts, haptophytes, thiab cryptomonads. Cov tsiaj hauv pawg no muaj cov kab mob photosynthetic hu ua plastids. Plastids muaj cov xim photosynthetic xws li chlorophyll c. Lawv cov plastids yog ib puag ncig los ntawm cov hmoov nplej. Nws ntseeg tias lawv tau txais cov plastids los ntawm qee cov algae liab.
Daim duab 01: Chromista Structure
Cov tswv cuab ntawm chromista muaj cov yam ntxwv yooj yim xws li muaj plastids thiab cilia. Plastids nyob rau hauv ib qho ntxiv periplastid daim nyias nyias nyob rau hauv lub lumen ntawm ntxhib endoplasmic reticulum. Lub cilia yog tripartite los yog bipartite txhav tubular plaub hau zoo li cov qauv. Los ntawm evolution, ntau tus tau khaws cia plastids thiab cilia, thaum qee qhov tau ploj lawm. Ntxiv mus, ntau haiv neeg ntawm chromista stems los ntawm degeneration, hloov, los yog poob ntawm lawv plastids nyob rau hauv ib co kab mob. Kelp, seaweeds, xim av algae, thiab liab algae yog qee cov tswv cuab nrov ntawm lub nceeg vaj no.
YProtista yog dab tsi?
Protista yog lub nceeg vaj lom neeg uas muaj unicellular eukaryotic hom xws li protozoa, protophyta, thiab pwm. Lo lus no yog thawj zaug los ntawm Ernst Haeckel hauv xyoo 1866. Protista ib txwm muab faib ua peb pawg: protozoa, protophyta, thiab pwm. Protozoa subgroup muaj unicellular tsiaj zoo li kab mob xws li flagellata, cilophora, amoeba thiab sporozoa. Protophyta subgroup yog tsim los ntawm cov kab mob autotrophic zoo li unicellular algae, dinoflagellates, thiab Euglena zoo li flagellates. Pwm feem ntau yog hais txog cov fungi. Tab sis slime pwm thiab dej pwm yog fungi zoo li saprophytic protists.
Daim duab 02: Protista – Dinobryon
Txawm li cas los xij, qee tus neeg tiv thaiv tau raug suav tias yog ob qho tib si protozoa thiab algae lossis fungi. Lawv hu ua ambiregnal protists. Cov Protists tsis muaj ntau qhov sib txawv dua li lawv cov theem yooj yim ntawm lub koom haum. Tsis tas li ntawd, nyob rau hauv cladistic classification system, tsis muaj qhov sib npaug rau taxa protista. Nws feem ntau yog ib pab pawg neeg paraphyletic nrov hauv kev faib tawm.
Dab tsi yog qhov zoo sib xws ntawm Chromista thiab Protista?
- Protista thiab chromista feem ntau yog pawg hauv plankton thiab lawv yog ob lub tebchaws lom neeg.
- Lawv muaj cov kab mob eukaryotic.
- Ob lub nceeg vaj muaj cov kab mob uas muaj chlorophyll pigments.
- Lawv muaj cov kab mob heterotrophic thiab autotrophic.
Qhov txawv ntawm Chromista thiab Protista yog dab tsi?
Chromista yog lub nceeg vaj lom neeg ntawm unicellular lossis multicellular eukaryotic hom xws li algae, diatoms, oomycetes, thiab protozoans, thaum Protista yog lub nceeg vaj lom ntawm unicellular eukaryotic hom xws li protozoa, protophyta, thiab pwm. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm chromista thiab protista. Tsis tas li ntawd, lub nceeg vaj chromista muaj cov kab mob uas muaj chlorophyll a, b, c, d, carotenoids, thiab phycobilin pigments, thaum Protista lub nceeg vaj muaj cov kab mob uas muaj chlorophyll a, b, thiab c pigments.
Cov kab lus hauv qab no nthuav tawm ib sab ntawm kev sib piv ntawm qhov sib txawv ntawm chromista thiab protista.
Summary – Chromista vs Protista
Protista thiab chromista feem ntau yog pawg hauv qab plankton. Lawv yog hom eukaryotic. Chromista yog lub nceeg vaj lom neeg uas muaj unicellular lossis multicellular eukaryotic hom xws li algae, diatoms, oomycetes, thiab protozoans. Protista, ntawm qhov tod tes, yog lub nceeg vaj lom neeg uas muaj unicellular eukaryotic hom xws li protozoa, protophyta, thiab pwm. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm chromista thiab protista.
