Primordium - Wikipedia
Leaf migration. Plants produce both leaf and flower primordia cells at the shoot apical meristem (SAM). Primordium development in plants is critical to the proper positioning and development of plant organs and cells. The process of primordium development is intricately regulated by a set of genes that affect the positioning, growth and ...
Overview of molecular mechanisms of plant leaf development: a ...
2023年12月7日 · Leaf development is a complex, dynamic process that can be summarized into five processes: the first step is the leaf primordium initiation, the primordia begins in the peripheral zone of the apical meristem; the second step is the establishment of polarity, the initial leaf primordium develops in the direction of adaxial-abaxial growth axes ...
葉原體 - 維基百科，自由的百科全書
工具. 葉原體 （leaf primordia），又稱 葉原基，在莖的頂端分生組織下方，其最外第2層或第3層細胞首先進行細胞分裂，先與表皮平行分裂，之後垂直分裂，如此反覆分裂形成的指狀突起。. 發育之初期稱之，化學之訊息會啓始新葉的形成。. 這是一篇與 發育生物學 ...
Overview of molecular mechanisms of plant leaf development: a ...
2023年12月7日 · Leaf development encompasses five processes: the leaf primordium initiation, the leaf polarity establishment, leaf size expansion, shaping of leaf, and leaf senescence. The leaf primordia starts from the side of the growth cone at the apex of the stem.
From genes to networks: The genetic control of leaf development
A detailed analysis showed that in the mutant, a pair of extra leaflet primordia is initiated at an early stage of primordium development, indicating that PALM1 suppresses morphogenetic activity in the proximal region of the compound leaf primordium and is required to ensure the formation of a trifoliate leaf.
The Diverse Roles of Auxin in Regulating Leaf Development
2019年7月23日 · In this review, we discuss how auxin maxima form to define leaf primordium formation. We summarize recent progress in understanding of how spatial auxin signaling promotes leaf blade formation. Finally, we discuss how spatial auxin transport and signaling regulate the patterning of compound leaves and leaf serration.
Unlocking the mysteries of leaf primordia formation | PNAS
2001年9月25日 · The shoot apical meristem (SAM), at the tip of the plant stem, has two roles; it is the source of the new cells that are needed for stem growth, and it is the site of small cellular outgrowths, called leaf primordia (LP), that develop into the leaves .
Origin, Development and Differentiation of Leaves
The leaf primordia are initially with a leaf axis from which the lamina, petiole and phyllopodium regions of the mature leaf arise. This chapter deals with the genetic network that operates during various phases of leaf ontogeny.
Molecular Mechanisms of Leaf Morphogenesis - ScienceDirect
2018年9月10日 · Leaf morphogenesis in eudicots occurs in four stages (Figure 2). First, the founder cells that are designated to develop into leaves are recruited from the PZ of the SAM (Figure 2 A). Second, distal growth occurs after the initiation of the leaf primordium, and the adaxial–abaxial and proximal–distal axes are established (Figures 1 A and 2 B
Leaf Primordia | Parts of a Plant - Plant Biology
Leaf primordia are found within the meristem that resembles the knobby outgrowths and the ribbed inverted cones. In leaves, the so-called leaf primordial is primarily the young leaves that have formed recently at the tip of the shoot, which was formed by the shoot apical meristems.
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