Qhov Tseem Ceeb - Plasmogamy vs Karyogamy
Fertilization yog ib theem tseem ceeb hauv kev sib deev kev sib deev ntawm cov kab mob eukaryotic. Thaum lub sij hawm fertilization, ob gametes yog fused nrog ib leeg los tsim ib tug diploid zygote uas tom qab los ua tus neeg tshiab. Lub fusion ntawm ob gametes thaum lub sij hawm fertilization yog hu ua syngamy. Syngamy tuaj yeem muab faib ua ob theem hu ua plasmogamy thiab karyogamy. Plasmogamy tshwm sim thawj zaug thiab ua raws li karyogamy. Hauv qee cov kab mob, ob qho no tshwm sim ib txhij thaum nyob hauv qee hom kab mob karyogamy ncua sij hawm ntev. Qhov sib txawv tseem ceeb ntawm plasmogamy thiab karyogamy yog tias plasmogamy yog fusion ntawm cell membranes thiab cytoplasm ntawm ob lub hlwb tsis muaj nuclei fusion thaum karyogamy hais txog kev sib xyaw ntawm ob lub haploid nuclei los tsim ib lub cell diploid.
Plasmogamy yog dab tsi?
Kev sib xyaw ntawm txiv neej thiab poj niam gametes tshwm sim hauv kev sib deev kev sib deev thiaj li tsim tau lub diploid zygote. Qhov no yog hu ua fertilization los yog syngamy. Ua ntej haploid nuclei fusion, cell membranes ntawm ob gametes fuse thiab ob lub cytoplasm fuse nrog ib leeg. Lub nuclei fusion ncua sijhawm rau ib lub sijhawm. Cov txheej txheem no hu ua plasmogamy. Plasmogamy yog ua tau ntawm ob gametes los yog nruab nrab ntawm ob lub noob qes ntawm fungi uas ua lub luag haujlwm ntawm gametes. Plasmogamy yog ib theem ntawm kev sib deev kev sib deev hauv fungi thiab nws coj ob lub nuclei ze rau ib leeg rau fusion. Plasmogay tsim ib theem cell tshiab uas txawv ntawm ib txwm haploid lossis diploid cell vim nws muaj ob leeg txiv neej thiab poj niam nuclei coexisting nyob rau hauv tib lub cytoplasm yam tsis merging li n + n xeev. Nyob rau theem no, lub cell tshwm sim hu ua dikaryon lossis dikaryotic cell. Dikaryotic cell harbors ob peb nuclei los ntawm ob hom mating.
Daim duab 01: Plasmogamy
Karyogamy yog dab tsi?
Karyogamy yog kauj ruam uas ua rau lub diploid zygote. Ob lub haploid nuclei fuse nrog ib leeg los tsim diploid zygote. Karyogamy tshwm sim tom qab fusion ntawm ob cytoplasms. Qhov kev sib xyaw ntawm ob lub nuclei no ua rau lub cell diploid, uas muaj kev sib xyaw ntawm ob hom khoom siv caj ces.
Plasmogamy thiab karyogamy yog cov theem pom tseeb hauv kev sib deev ntawm cov kab mob fungal. Fungi rov tsim dua los ntawm plasmogamy, karyogamy, thiab meiosis. Cov no yog cov theem tseem ceeb ntawm fungal kev sib deev kev sib deev. Qhov no theem dikaryotic yog qhov tseem ceeb nyob rau hauv feem ntau cov fungi thiab, nyob rau hauv ib co fungi, nws muaj mus txog rau ob peb tiam. Txawm li cas los xij, hauv qis qis, karyogamy tshwm sim tam sim tom qab plasmogamy.
Ascomycota yog ib pawg ntawm macrofungi uas qhia cov theem sib txawv ntawm plasmogamy, karyogamy, thiab meiosis thaum muaj kev sib deev. Kev sib xyaw ntawm ob hom hyphae ua rau dikaryotic (n + n) theem vim plasmogamy. Tom qab ntawd, karyogamy tshwm sim thiab tsim ib lub diploid zygote. Lub diploid zygote ces faib ua yim ascospores los ntawm ob lub meiotic division.
Daim duab 02: Karyogamy (Stage 4)
Qhov txawv ntawm Plasmogamy thiab Karyogamy yog dab tsi?
Plasmogamy vs Karyogamy |
|
| Plasmogamy yog hais txog kev sib xyaw ntawm cytoplasm ntawm ob gametes lossis rau ob lub hlwb uas ua haujlwm ua gametes. | Karyogamy yog hais txog kev sib xyaw ntawm ob lub nuclei thaum fertilization. |
| Nuclei Fusion | |
| Nuclei tsis sib koom ua ke thaum plasmogamy. | Nuclei sib xyaws ua ib lub zygote. |
| Resultant Cell | |
| Plasmogamy tsim cov cell dikaryotic uas muaj n + n lub xeev (muaj ob hom haploid nuclei). | Karyogamy tsim 2n cell hu ua diploid zygote. |
| taug qab los ntawm | |
| Plasmogamy tshwm sim tom qab meiosis | Karyogamy tshwm sim tom qab plasmogamy |
| theem ntawm syngamy | |
| Plasmogamy yog thawj theem ntawm syngamy. | Karyogamy yog theem ob ntawm kev sib koom ua ke. |
Summary – Plasmogamy vs Karyogamy
Kev sib xyaw ntawm ob gametes thaum lub sijhawm sib deev yog hu ua syngamy. Syngamy tshwm sim ntawm ob theem hu ua plasmogamy thiab karyogamy. Plasmogamy yog thawj theem ntawm syngamy. Nws yog fusion ntawm cytoplasm ntawm ob gametes los yog ob lub mating hlwb tsis muaj fusion ntawm lawv cov nuclei. Plasmogamy coj cov txiv neej thiab poj niam nuclei ua ke. Thaum plasmogamy tshwm sim, nws tsim ib lub cell uas muaj ob lub nuclei tau txais los ntawm txhua tus niam txiv thiab lub cell hu ua dikaryotic cell. Tom qab fusion ntawm cytoplasm, ob lub nuclei los ze zog thiab fuse nrog ib leeg. Cov theem no yog hu ua karyogamy. Qhov no yog qhov txawv ntawm plasmogamy thiab karyogamy. Thaum karyogamy tshwm sim, nws yields diploid cell hu ua zygote. Lub zygote tuaj yeem faib los ntawm meiosis los tsim cov spores lossis nws tuaj yeem faib los ntawm mitosis los tsim ib tus neeg tshiab. Hauv qee cov kab mob, karyogamy tshwm sim tam sim tom qab plasmogamy xws li hauv cov kab mob qis. Hauv qee hom, dikaryon theem muaj nyob rau ntau tiam.
Download PDF Version of Plasmogamy vs Karyogamy
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov download PDF version ntawm no Qhov txawv Ntawm Plasmogamy thiab Karyogamy
