Stem cellsare often in the news because of potential medical use and because of the ethical debate around human embryonic stem cells. From the point of view of biologists, however, stem cells have even wider significance as central players in thedevelopmentof complex organisms, which include plan...
stem cellsapical meristemscell interactionsmutantskinasesThe uppermost cells of the root and shoot apical meristems are considered as stem cells. They are similar, in many features, to the stem cells of animals. But, unlike animals, the stem cells can repeatedly arise in plants during ...
Research28 Oct 2024Nature Plants P: 1-9 A coherent feed-forward loop in theArabidopsisroot stem cell organizer regulates auxin biosynthesis and columella stem cell maintenance The stem cells in theArabidopsisroot meristem are maintained by the expression of the transcription factor WOX5 in the stem...
The cells of the SAM are also stratified into clonally distinct layers, from which the various tissues of the plant originate.6,7 The outer layer of cells comprises the epidermal layer (L1) and produces the epidermis of the stem and lateral organs. Many, but not all, higher plants also ha...
Stem cells are the precursors of differentiated cells and are, thus, indispensable for growth and development in plants and animals. Stem cells from both types of organisms share the fundamental features of a capacity for self-renewal and an ability to generate differentiated cells. The maintenance...
S16 植物干细胞与器官发生 / Plant stem cells and organogenesis 植物分生组织具有干细胞,并在胚后发育中维持着器官发生的能力。干细胞的维持和分化、器官发生过程的形态建成是植物发育过程的核心问题。本会场围绕本领域的新进展、新技术、交叉学科方法,来探讨植物干细胞命运决定和器官发生的机理。 Plant meristems...
**原文分析** 根据第二段 “When DNA damage occurs, the cells have the capacity to detect it and cause programmed cells to die, preventing the propagation of the damaged genetic code to the rest of the plant tissues.” 可知,当DNA损伤发生时,细胞有能力检测到它,并导致程序性细胞死亡,防止受损...
Plants maintain populations of pluripotent stem cells in shoot apical meristems (SAMs), which continuously produce new aboveground organs. We used single-c... JW Satterlee,J Strable,MJ Scanlon - National Academy of Sciences 被引量: 0发表: 2020年 Regulation of niche molecules for the maintenance...
Another fundamental difference between plants and animals lies in the dramatic developmental plasticity of plant cells, which allows them to take on multiple fates during their life. Therefore, plants have evolved a complex regulatory network, which allows for a precise control of stem cell ...
The dermal tissue of the stem consists primarily ofepidermis, a single layer of cells covering and protecting the underlying tissue. Woody plants have a tough, waterproof outer layer of cork cells commonly known asbark, which further protects the plant from damage. Epidermal cells are the most ...