Meristem - Wikipedia
网页There are three types of meristematic tissues: apical (at the tips), intercalary or basal (in the middle), and lateral (at the sides also known as cambium). At the meristem summit, there is a small group of slowly dividing cells, which is commonly called the central zone.
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网页分生组织区是细胞进行有丝分裂（mitotic cell division）的区域。根据细胞分裂活跃程度的不同，近年来又把分生组织区分为顶端分生组织区（apical meristem zone）和基部分生组织区（basal meristem zone）两个部分。
Meristem - Definition, Function, Explanation, Quiz - Biology …
网页2017年6月15日 · Basal Meristem Function. Also known as an intercalary meristem, the basal meristem is found between mature, differentiated tissues. Although located relatively near an apical meristem and also composed of mostly undifferentiated cells, the intercalary meristem is distinctly different.
Meristem | Definition, Function, Types, Examples, & Facts
网页Meristem, region of cells capable of division and growth in plants. Meristem cells are typically small cells the diameters of which in different directions are about equal. They have a dense cytoplasm and relatively few small vacuoles (watery saclike enclosures).
Meristems of Seedless Vascular Plants: The State of the Art
网页2018年3月25日 · The basal meristem, interpreted as a functionally separate part of the cambium, forms a ribbonlike structure in the lower part of the Isoëtes corm and is a root-producing or root-bearing meristem (Paolillo 1963; Kruatrachue and Evert 1977; Yi and Kato 2001). The initial cells of this meristem form radial files …
Basal Meristem and Root Development in Isoetes asiatica and …
网页We studied the anatomy of the basal meristem and root development in Isoetes asiatica and Isoetes japonica to better understand the Isoetes rhizomorph, an enigmatic organ. The basal (root‐producing) meristem of the rhizomorph is continuous with the lateral meristem, and both comprise a single meristem.
Basal meristem - University of Texas at Austin
网页Longitudinal section of a basal meristem in a cactus spine (Morawetzia doelziana). Spines grow upward due to a meristem located at their base; consequently this is a basal meristem. These meristem cells divide mostly transversely, then enlarge and divide again.
A signal cascade originated from epidermis defines apical-basal ...
网页2020年3月5日 · Along the vertical axis of plant shoot apical meristems (SAMs), stem cells are located at the top while cells specifying the stem cells are located more basally, forming a robust apical-basal...
Auxin-dependent regulation of lateral root positioning in the basal …
网页2021年2月7日 · Second, we found evidence that the priming of pericycle cells for lateral root initiation might take place in the basal meristem, correlating with elevated auxin sensitivity in this part of the root. This local auxin responsiveness oscillates with peaks of expression at regular intervals of 15 hours.
From shoot to leaf: step-wise shifts in meristem and
网页2016年12月8日 · Typical dicots possess equal-sized cotyledons and leaf-bearing shoots topped with a shoot apical meristem (SAM), the source of lateral organs, and where KNOX1 homeobox genes act as key regulators. New World Gesneriaceae show typical cotyledons, whereas Old World Gesneriaceae show anisocotyly, the unequal post-germination growth of …
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