In roots, however, the concept is still applied, and in some angiosperm roots a fourth histogen zone is recognized, the calpytrogen, which gives rise to the root cap.
然而在
中,它还是适用的。在一些被子植物的
中,还
现了第四种组
,
calpytrogen,


生有关。


In roots, however, the concept is still applied, and in some angiosperm roots a fourth histogen zone is recognized, the calpytrogen, which gives rise to the root cap.
然而在
中,它还是适用的。在一些被子植物的
中,还
现了第四种组
,
calpytrogen,


生有关。
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