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  1. 4.6.2: Meristems - Biology LibreTexts

    The three primary meristems first appear in the embryo proper, with the protoderm on the outside, the procambium in the center, and the ground meristem in between them.

  2. Apical meristem | Definition, Development, & Facts | Britannica

    The region of cell division includes the apical meristem and the primary meristems—the protoderm, ground meristem, and procambium—derived from the apical meristem.

  3. Meristem - Wikipedia

    Apical meristems give rise to three types of primary meristems, which later develop into secondary or lateral meristems, contributing to the plant's lateral expansion.

  4. 7.1 Meristem Morphology – The Science of Plants

    The xylem and phloem tissues that result from differentiation of derivative cells are called primary xylem and primary phloem, where the word “ primary ” signals that the cells originated from cell divisions of …

  5. The Shoot Apical Meristem: An Evolutionary Molding of Higher Plants

    There are two types of AMs: the shoot apical meristem (SAM) and the root apical meristem (RAM), which are responsible for the growth of the aerial part and the root system of plants, respectively.

  6. Lecture 18 - nickrentlab.siu.edu

    Oct 14, 2022 · What is the evolutionary selective advantage to having an apical cell? It divides less rapidly than its derivatives, thus helping prevent the multiplication of abnormalities.

  7. Plant Development II: Primary and Secondary Growth | Organismal …

    Primary growth is controlled by root apical meristems and shoot apical meristems. Secondary growth is controlled by the two lateral meristems, called the vascular cambium and the cork cambium. Not all …

  8. Plant tissues. Meristems. Atlas of plant and animal histology.

    Primary meristems are first observed in the embryo and primarily contribute to the growth in plant length (Figure 2). Primary meristems are found at the ends of the main and lateral shoots and roots, and …

  9. Apical Meristems: Structure, Growth, and Regulation

    Apical meristems drive primary growth, facilitating the elongation of both roots and shoots. This elongation results from the continuous division and subsequent expansion of cells. The process …

  10. Apical Meristem - an overview | ScienceDirect Topics

    Our understanding of the mechanics of meristems has been greatly aided by investigations of the apical meristems of ferns and other lower vascular plants. The root and shoot apical meristems of these …