Qhov Tseem Ceeb Qhov txawv - Chasmogamous vs Cleistogamous
Qhov sib txawv tseem ceeb ntawm Chasmogamous thiab Cleistogamous paj yog tias Chasmogamous paj nthuav tawm cov khoom me me tawm rau cov pollinators thaum Cleistogamous paj cuam tshuam lawv los ntawm kev nthuav tawm cov khoom me me tawm thiab yuam nws tus kheej fertilization.
Lub paj yog cov qauv tsim tawm ntawm Angiosperms. Ib lub paj muaj ob qho tib si txiv neej thiab poj niam yug me nyuam hauv nws. Anthers tsim pollen nplej uas nqa txiv neej gametes thaum pistil dais poj niam gametes. Pollens raug xa mus rau hauv stigma ntawm pistil los ntawm pollinators thaum pollination. Thaum pollination tshwm sim, syngamy los yog fertilization ntawm poj niam thiab txiv neej gametes tshwm sim. Qee lub paj qhia tus kheej fertilization thaum qee lub paj qhia hla fertilization. Thaum hla fertilization tsis ua tau, paj ua rau tus kheej fertilization. Chasmogamous thiab Cleistogamous paj yog ob hom paj loj.
Chasmogamous yog dab tsi?
Chasmogamy yog ib lub tshuab ntawm pollination thiab paj uas qhia tias chasmogamy yog chasmogamous paj. Chasmogamous paj yog qhov tseem ceeb, thiab lawv qhib lawv cov paj xws li anthers thiab stigma ntawm pistils rau pollination.
Daim duab 01: Chasmogamy
Chasmogamous paj yog bisexual thiab feem ntau qhia hla pollination. Txawm li cas los xij, muaj tus kheej pollinating chasmogamous paj ib yam nkaus. Txij li thaum hla pollination tshwm sim, chasmogamous paj xav tau pollinators (abiotic los yog biotic pollinators). Thiab tseem chasmogamous paj tsim cov noob uas sib txawv ntawm caj ces. Li no, cov paj no ua rau muaj ntau haiv neeg ntawm cov pejxeem, txo cov kev nyuaj siab inbreeding, thiab retard cov teebmeem deleterious ntawm recessive alleles.
Cleistogamous yog dab tsi?
Cleistogamy yog lwm hom kev pollinating mechanism uas pollination thiab fertilization tshwm sim nyob rau hauv cov paj tsis qhib los yog paj buds. Cov paj no hu ua cleistogamous paj. Lawv tsis qhib lawv qhov chaw yug me nyuam rau sab nraud. Lawv nyob twj ywm kaw, thiab lawv yuam tus kheej pollination thiab fertilization. Yog li ntawd, cleistogamous paj tsis xav tau pollinators los yog txaus nyiam floral qhov chaw los yog nectaries kom muab nqi zog pollinators.
Daim duab 01: Cleistogamous
Cov paj no tau pom hauv av, thiab lawv me me thiab tsis tuaj yeem sib txawv li paj. Peanuts, peas, thiab pansy yog cov piv txwv rau cov paj cleistogamous.
Dab tsi yog qhov zoo sib xws ntawm Chasmogamous thiab Cleistogamous?
- Chasmogamous thiab Cleistogamous paj belongs rau angiosperms.
- Ob qho tib si Chasmogamous thiab Cleistogamous paj qhia tus kheej fertilization.
- Paj ntawm Chasmogamous thiab Cleistogamous yog bisexual.
- Pollination thiab fertilization tshwm sim nyob rau hauv ob qho tib si Chasmogamous thiab Cleistogamous paj.
Qhov txawv ntawm Chasmogamous thiab Cleistogamous yog dab tsi?
Chasmogamous vs Cleistogamous |
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| Chasmogamous paj yog paj uas nthuav tawm lawv qhov chaw yug me nyuam tawm rau pollination. | Cleistogamous paj yog cov paj uas tsis qhib thiab cuam tshuam lawv los ntawm kev nthuav tawm cov khoom me me thiab yuam nws tus kheej fertilization. |
| Nature | |
| Chasmogamous paj qhib. | Cleistogamous paj nyob kaw. |
| Fertilization | |
| Chasmogamous paj qhia ob tus kheej thiab hla fertilization. | Cleistogamous paj ib txwm qhia nws tus kheej fertilization. |
| Kev koom tes ntawm Biotic thiab Abiotic pollinators | |
| Chasmogamous paj yog pollinated los ntawm biotic los yog abiotic pollinators. | Pollinators tsis koom nrog Cleistogamous paj. |
| Exposing Anthers thiab Stigma | |
| Chasmogamous paj nthuav tawm anthers thiab stigma. | Cleistogamous paj yeej tsis nthuav tawm anthers thiab stigma. |
| Pollination thiab fertilization ntawm chasmogamous paj tshwm sim tom qab qhib paj. | Pollination thiab fertilization ntawm cleistogamous paj tshwm sim thaum lub sijhawm kaw. |
| Paj | |
| Chasmogamous paj yog qhov tseem ceeb. | Cleistogamous paj tsis txawv ntau. |
| Ntxim hlub paj ntaub | |
| Chasmogamous paj muaj cov paj zoo nkauj kom nyiam cov paj ntoos. | Cleistogamous paj tsis muaj cov paj zoo nkauj. |
| Chasmogamous paj feem ntau muaj cov xim paj yeeb. | Cleistogamous paj tsis muaj xim petals. |
| Nectaries | |
| Chasmogamous paj muaj nectaries. | Cleistogamous paj tsis muaj nectaries. |
| Pollen Production | |
| Chasmogamous paj yuav tsum tsim cov paj ntoos ntau. | Cleistogamous paj tsis tas yuav tsim cov paj ntoos ntau. |
| Yuav tsum tau cog cov peev txheej los tsim cov noob | |
| Chasmogamy xav tau kev cog qoob loo ntau dua rau kev tsim cov noob. | Cleistogamy xav tau cov peev txheej cog tsawg dua los tsim cov noob. |
| zoo | |
| Chasmogamous paj tsim cov noob uas sib txawv ntawm caj ces, nws ua rau muaj kev sib txawv ntawm caj ces, txo qis kev nyuaj siab thiab tshem tawm cov teebmeem ntawm cov alleles recessive. | Cleistogamous paj tsis xav tau pollinators rau pollination. Thiab tseem xav tau cov peev txheej cog tsawg dua rau kev tsim cov noob. |
| Disadvantages | |
| Chasmogamous paj xav tau pollinators. Li no, lawv nyob ntawm pollinators. | Cleistogamous paj tsim cov noob uas zoo sib xws. Li no, ua rau muaj kev nyuaj siab ntau ntxiv thiab tshem tawm cov teebmeem ntawm cov alleles recessive. |
Summary – Chasmogamous vs Cleistogamous
Chasmogamous paj ua pollination thiab fertilization tom qab qhib lawv cov paj. Ob qho tib si ntoo khaub lig thiab tus kheej pollination tshwm sim nyob rau hauv chasmogamous paj, tab sis tus ntoo khaub lig pollination yog feem ntau pom thiab nyiam. Cleistogamous paj nqa tawm pollination thiab fertilization ua ntej qhib los yog hauv lub paj paj. Txawm li cas los xij, lawv tsis nthuav tawm cov paj paj tshwj xeeb tshaj yog anthers thiab stigma. Yog li ntawd, lawv ib txwm txhawb nqa tus kheej pollination. Qhov no yog qhov txawv ntawm chasmogamous thiab cleistogamous paj.
