Vim muaj ob lub thecae hauv ib lub lobe, ces cov anthers ntawm angiosperms hu ua dithecous. Microsporangia yog cov qauv uas feem ntau yog lub luag haujlwm rau kev tsim thiab tso tawm paj paj noob qoob. Thecae ua raws li microsporangium.
Vim li cas Bilobed anther Dithecous thiab Tetrasporangiate?
Nws yog oblong thiab knoblike thiab raug xa mus rau raws li ib feem ntawm cov stamens. Nws yog dithecous vim tias txhua qhov anther lobe muaj ob chav los yog theca. … Cov hnab paj ntoos ntev thiab cylindrical los yog microsporangia muaj nyob rau hauv ob chav ntawm anther lobe. Yog li ntawd, peb tuaj yeem hais tias bilobed anther yog tetrasporangiate.
Vim li cas anther hu ua microsporangium?
txhawm rau txhais cov microsporogenesis, nws tsuas yogtxheej txheem los ntawm cov paj ntoos niam lub hlwb ua rau microspores. Nyob rau hauv nruab nrab ntawm txhua microsporangium nyob rau hauv cov tub ntxhais hluas anther ntawm ib tsob nroj, yog ib tug loj ntawm sporogenous ntaub so ntswg. … Yog li txhua lub xov tooj hu ua microspore lossis pollen niam cell.
Dab tsi hu ua Dithecous?
Lub anther ntawm androecium ntawm angiospermic paj yog bilobed thiab txhua lobe muab faib ua ob feem los yog theca. Yog li, anther ntawm angiospermic paj hu ua dithecous.
Bilobed thiab Dithecous yog dab tsi?
anther yog piav los ntawm cov lus sib txawv. bilobed anther txhais tau hais tias lub anther muaj 2 lobes. dithecous anther txhais tau tias txhua lobe ntawm anthermuaj ob lub theca thiab yog li hu ua dithecous. tetrasporangiate txhais tau hais tias lub anther muaj 4 sporangia lossis peb tuaj yeem hais tias microsporangium.
