Carpel vs Pistil
Paj yog ib qho tshwj xeeb tshaj plaws tua tua. Ib lub paj zoo li muaj 4 lub voj voog, ib qho tom qab ntawm ib qho stalk. Lub stalk tuaj yeem luv lossis ntev. Ob qho tib si qis qis tsis cuam tshuam ncaj qha rau kev yug me nyuam. Yog li ntawd, lawv yog hu ua accessory whorls. Upper ob whorls yog ncaj qha mus rau kev yug me nyuam. Yog li ntawd, lawv yog hu ua reproductive whorls. Lub cev xeeb tub yog tsim los ntawm microsporophylls thiab megasporophylls. Microsporophylls hu ua stamens thiab megasporophylls hu ua carpels hauv anthophytes / angiosperms. Qee lub paj muaj ob qho tib si stamens thiab carpels hauv tib lub paj thiab qee cov paj muaj carpels lossis stamens. Thib peb whorl hu ua androecium uas yog txiv neej whorl. Plaub whorl hu ua gynoecium, uas yog poj niam feem ntawm lub paj.
Carpel yog dab tsi?
Carpels yog megasporophylls. Megasporophylls yog hloov kho nplooj uas dais ovules. Nyob ntawm seb muaj pes tsawg tus carpels tam sim no, lub pistil tuaj yeem ua tau yooj yim lossis sib xyaw. Thaum tus pistil nqa tsuas yog ib lub carpel, nws yog hais tias yog ib tug yooj yim pistil, thiab thaum lub pistil nqa ob los yog ntau tshaj, lub pistil yog hais tias yog ib tug compound pistil. Nyob rau hauv lub compound pistils, carpels yuav nyob twj ywm dawb, los yog lawv yuav nyob twj ywm fused. Txhua carpel muaj peb ntu. Cov no yog stigma, style thiab zes qe menyuam. Stigma yog nyob rau saum kawg ntawm cov style, thiab nws yog cov qauv uas tau txais cov paj ntoos nplej. Raws li txoj cai, lub stigma zoo li lub pob qhov rooj, thiab nws yog nplaum kom tau txais cov paj ntoos nplej. Style yog zoo li ib tug extension ntawm zes qe menyuam, uas yog zoo li ib tug heev nyias thiab ib tug nqaim raj. Nws dais lub stigma rau saum. Qhov saum npoo ntawm cov style tej zaum yuav du heev thiab plaub hau kom ntxiab paj paj nplej. Nyob rau hauv qab ntawm lub style yog ib tug o zoo saib qauv, uas yog lub zes qe menyuam. Lub zes qe menyuam tuaj yeem ua tau ib chambered los yog ntau chambered. Lub zes qe menyuam muaj ovules. Txhua lub ovule muaj ib lub hnab embryo nyob rau hauv. Tom qab fertilization, lub zes qe menyuam nce mus rau cov txiv hmab txiv ntoo, thiab ovules nce mus rau noob.
Pistil yog dab tsi?
Tus poj niam cev xeeb tub ntawm lub paj yog gynoecium, uas tseem hu ua pistil. Qhov no yog plaub whorl ntawm lub paj. Pistil muaj ib los yog ntau tshaj carpels. Nws yuav muaj ib los yog ntau tshaj carpels. Nyob ntawm seb muaj pes tsawg tus carpels tam sim no, cov pistil tuaj yeem ua tau yooj yim lossis sib xyaw. Thaum tus pistil nqa tsuas yog ib lub carpel, nws yog hais tias yog ib tug yooj yim pistil, thiab thaum lub pistil nqa ob los yog ntau tshaj, lub pistil yog hais tias yog ib tug compound pistil. Nyob rau hauv lub compound pistils, cov carpels yuav nyob twj ywm dawb, los yog lawv yuav nyob twj ywm fused.
Qhov txawv ntawm Carpel thiab Pistil yog dab tsi?
• Carpels yog lub hauv paus ntawm pistils, uas tej zaum yuav dawb los yog fused.
• Hauv qee lub sijhawm, ob lo lus siv tau sib hloov tab sis, qee zaus, nws siv tsis tau li ntawd. Piv txwv li, cov lus siv sib hloov thaum lub paj muaj peb lub carpels dawb thiab peb cov pistils yooj yim. Txawm li cas los xij, ob lo lus tsis tuaj yeem siv sib hloov thaum lub paj muaj 3 fused carpels vim tias nws tsuas muaj ib qho tshuaj tua kab mob xwb.
