Phelloderm lossis secondary cortex yog tsim los ntawm kev hloov pauv. Lawv yog tsim los ntawm dedifferentiated meristematic hlwb hu ua cork cambium los yog phellogen.
Dab tsi yog Redifferentiated ntaub so ntswg?
Redifferentiation yog kev tsim cov ntaub so ntswg tshiab lossis txawv ntawm cov ntaub so ntswg sib txawv. Thaum lub sij hawm cov txheej txheem no hlwb ntawm parenchymatous cov ntaub so ntswg undergo dedifferentiation rau meristematic ntaub so ntswg.
Puas yog phelloderm nyob los tsis muaj sia?
Hauv angiosperms, cov hlwb ntawm phelloderm yog nyias phab ntsa (parenchymatous). Lawv tsis yog suberized as opposed to cork hlwb uas impregnated nrog suberin. Tsis tas li ntawd, cov hlwb phelloderm yog ua neej nyob txawm tias ua haujlwm kom loj hlob(tsis zoo li cov cork hlwb uas tig mus rau hauv cov hlwb tsis muaj sia).
Dab tsi yog Redifferentiated cells?
Redifferentiation - definition
txheej txheem uas cov hlwb sib txawv uas tau ploj lawv lub peev xwm los faib tau hloov kho los ntawm cov hlwb tsis sib xwsthiab muaj peev xwm ua haujlwm tshwj xeeb.
Dab tsi yog qhov sib txawv ntawm qhov kev txiav txim siab thiab Kev Hloov Dua Tshiab?
Dedifferentiation yog cov txheej txheem uas cov hlwb paub tab thim rov qab lawv lub xeev ntawm kev sib txawv thiab tau txais pluripotentiality. Redifferentiation yog cov txheej txheem uas dedifferentiated hlwb poob lub zog ntawm kev faibthiab ua tshwj xeeb los ua haujlwm los ntawm kev hloov mus rau hauv ib feem ntawm cov ntaub so ntswg mus tas li.
