Qhov sib txawv tseem ceeb ntawm carposporophyte thiab tetrasporophyte yog carposporophyte yog diploid thallus uas tsim carposporangia uas muaj diploid carpospores thaum tetrasporophyte yog cov qauv diploid uas tsim cov tetrasporangia uas muaj haploid tetraspores.
Liab algae belongs rau phylum Rhodophyta. Lawv yog marine algae uas tshwm hauv xim liab vim muaj xim hu ua phycoerythrine. Ntxiv mus, lawv yog multicellular thalli tsim branched algae. Lawv lub neej voj voog muaj peb theem multicellular suav nrog ob sporophytes thiab ib theem gametophyte. Ob tug sporophytes tshwm sim nyob rau hauv succession. Ob lub sporophytes hu ua carposporophyte thiab tetrasporophyte. Lub zygote loj hlob mus rau hauv carposporophyte thaum diploid carpospores germinate thiab ua rau tetrasporophytes. Tetraspores loj hlob mus rau gametophytes.
YCarposporophyte yog dab tsi?
Carposporophyte yog ib daim ntawv uas tsim los ntawm diploid zygote. Yog li ntawd, carpospore yog diploid thallus. Nws yog lub cim liab algal theem. Nws muaj qhov sib txawv: gonimoblast filaments, carposporangia, carpospores thiab placental hlwb. Cov tub ntxhais hluas vegetative filaments ntim cov qauv saum toj no thiab tsim cov carposporephyte. Nws yog ib tug urn-zoo li tus qauv. Phab ntsa ntawm carposporophyte hu ua pericarp thaum lub qhov qhib hu ua ostiole. Tag nrho carposporophyte yog nyob ntawm tus poj niam gametophyte.
Daim duab 01: Carposporephyte
Carposporophyte tsim cov tsis-motile asexual spores hu ua carpospores. Lawv yog diploid spores. Carposporophyte tso carpospores los ntawm ostiole rau hauv dej. Tom qab ntawd carpospores germinate thiab nce mus rau diploid neeg laus algal daim ntawv hu ua tetrasporophyte.
Tetrasporophyte yog dab tsi?
Tetrasporophyte yog cov neeg laus theem ntawm liab algae. Nws yog tsim los ntawm germination ntawm diploid non-motile carpospores. Nws tseem yog diploid thallus. Tetrasporophytes morphologically zoo li gametophytic nroj tsuag ntawm liab algae. Tetrasporophyte thallus yog tom qab ceg. Los ntawm cov cell pericentral, tetrasporophyte tsim sporangia hu ua tetrasporongia, uas zoo li lub hnab hauv cov qauv. Nyob rau hauv lub tetrasporangia, asexual spores hu ua tetraspores yog tsim thiab tso tawm rau sab nraum los ntawm rupturing lub sporangium phab ntsa.
Daim duab 02: Tetrasporophyte
Los ntawm txhua lub diploid nucleus ntawm tetrasporangium, plaub tetraspores yog tsim tetrahedrally. Lawv yog cov spores haploid uas ua rau gametophytes. Yog li ntawd, tawm ntawm plaub tetraspores, ob qho kev loj hlob mus rau txiv neej gametophytes thaum lwm tus ob spores loj hlob mus rau hauv poj niam gametophyte.
Dab tsi yog qhov zoo sib xws ntawm Carposporophyte thiab Tetrasporophyte?
- Carposporephyte thiab tetrasporophyte yog ob theem tshwj xeeb rau lub voj voog liab algal.
- Tetrasporophyte yog tsim los ntawm kev loj hlob ntawm diploid carpospores.
- Ob leeg carposporophyte thiab tetrasporophyte yog cov qauv diploid.
- Lawv tsim asexual non-motile spores rau asexual reproduction.
Qhov txawv ntawm Carposporophyte thiab Tetrasporophyte yog dab tsi?
Carposporophyte yog ib theem diploid uas tsim cov diploid carpospores nyob rau hauv liab algae thaum tetrasporophyte yog ib tug neeg laus theem ntawm liab algae uas tsim haploid tetraspores. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm carposporophyte thiab tetrasporophyte. Carposporophyte tsim los ntawm diploid zygote thaum tetrasporophyte tsim los ntawm kev loj hlob ntawm carpospore. Ntxiv mus, carposporophyte muaj carposporangia thaum tetrasporophyte muaj tetrasporangia.
Tsis tas li ntawd, carposporophyte tsim carpospores los ntawm mitosis thaum tetrasporophyte tsim tetraspores los ntawm meiosis. Tsis tas li ntawd, lwm qhov sib txawv ntawm carposporophyte thiab tetrasporophyte yog tias carposporophyte nyob ntawm poj niam gametophyte thaum tetrasporophyte nyob dawb.
Hauv qab infographic qhia cov ncauj lus sib piv ntawm qhov sib txawv ntawm carposporophyte thiab tetrasporophyte.
Summary – Carposporophyte vs Tetrasporophyte
Carposporophyte thiab tetrasporophyte yog ob theem diploid ntawm liab algae lub neej voj voog. Carposporephyte yog ib tug urn-puab diploid qauv tsim los ntawm diploid zygote. Nws tsim carpospores. Thaum carpospores germinate, tus neeg laus algal daim ntawv hu ua tetrasporophyte yog tsim. Nws kuj yog ib theem diploid uas zoo li gametophyte morphologically. Nws tsim tetraspores los ntawm meiotic cell division. Yog li ntawd, tetraspores yog haploid thiab ua rau gametophytes ntawm liab algae. Carposporophyte nyob ntawm poj niam gametophyte thaum tetrasporophyte nyob dawb. Yog li, qhov no yog qhov txawv ntawm carposporophyte thiab tetrasporophyte.
