A tapetum yog txheej sab hauv ntawm phab ntsa anther uas nyob ib puag ncig cov ntaub so ntswg sporogenous. Tapetal cells nourish the developing pollen grains/Microsporocytes. Nws kuj ua raws li qhov ua ntej ntawm lub tsho paj ntoos.
Dab tsi yog txoj haujlwm ntawm tapetum?
Cov tapetum yog txheej sab hauv ntawm phab ntsa anther thiab nyob ib puag ncig cov ntaub so ntswg. Nws ua lub luag haujlwm tseem ceeb hauv pollen txoj kev loj hlob, uas yog kev noj haus ntawm micro-spores thiab tsim ntawm exine. Nyob rau theem kawg ntawm pollen maturation, cov khoom siv tapetal koom nrog hauv deposition ntawm tryphine thiab pollenkitt.
Dab tsi yog lub luag haujlwm ntawm tapetum luv teb?
Tapetum yog txheej sab hauv ntawm microsporangium. Nws muab khoom noj rau cov qoob loo loj hlob. Thaum lub sij hawm microsporogenesis, lub hlwb ntawm tapetum tsim ntau yam enzymes, cov tshuaj hormones, amino acids, thiab lwm yam khoom noj uas yuav tsum tau rau kev loj hlob ntawm paj paj noob qoob loo.
Peb txoj haujlwm ntawm tapetum yog dab tsi?
"Sau cov haujlwm ntawm tapetum." (i) Nws muab khoom noj khoom haus rau cov tsim microspores. (ii) Nws txhawb nqa sporopoleenin los ntawm ubisch lub cev yog li ua lub luag haujlwm tseem ceeb hauv kev tsim cov paj paj ntoo. (iii) Cov khoom paj ntoos yog pab los ntawm cov kab xev nplaum thiab tom qab ntawd xa mus rau paj ntoos nto.
Qhov twg tsis yog lub luag haujlwm ntawm tapetum?
Ua li casCov hauv qab no tsis ua haujlwm ntawm tapetum?
