関連する実験動画

Updated: Jul 12, 2026

Phloem Sap Sampling from Brassica napus for 3D-PAGE of Protein and Ribonucleoprotein Complexes
11:23

Phloem Sap Sampling from Brassica napus for 3D-PAGE of Protein and Ribonucleoprotein Complexes

Published on: January 9, 2018

中期のデボニアス期の先種であるフロエムの細胞

D C Wight, C B Beck

    Science (New York, N.Y.)
    |September 28, 1984
    PubMed
    まとめ

    研究者らは,3500万年前に遡る,古代のフローム組織を発見し,その種の最も古い証拠である可能性があります. この発見は,初期の植物進化の洞察とプロギムノスペルムとギムノスペルムの関係について明らかにします.

    さらに関連する動画

    Preparation of Intact Tissue for Microscopic Analysis of the Endosperm Cell Layer in Developing and Mature Arabidopsis Seeds06:28

    Preparation of Intact Tissue for Microscopic Analysis of the Endosperm Cell Layer in Developing and Mature Arabidopsis Seeds

    Published on: May 16, 2025

    Collection and Analysis of Arabidopsis Phloem Exudates Using the EDTA-facilitated Method09:38

    Collection and Analysis of Arabidopsis Phloem Exudates Using the EDTA-facilitated Method

    Published on: October 23, 2013

    関連する概念動画

    Seedless Vascular Plants03:24

    Seedless Vascular Plants

    Seedless Vascular Plants Were the First Tall Plants on Earth
    Phloem and Sugar Transport02:02

    Phloem and Sugar Transport

    Like many living organisms, plants have tissues that specialize in specific plant functions. For example, shoots are well adapted to rapid growth, while roots are structured to acquire resources efficiently. However, sugar production is primarily restricted to the photosynthetic cells that reside in the leaves of angiosperm plants. Sugar and other resources are transported from photosynthetic tissues to other specialized tissues by a process called translocation.
    The Phragmoplast01:59

    The Phragmoplast

    Cell division is essential for organismal growth and development. In animal cells, the central spindle and its associated proteins form the midbody, a structure that has an essential role in cytokinesis. In plants, the central spindle, along with the microtubules, actin, and other cell components, matures into the phragmoplast, which is necessary for cytokinesis. Unlike the stationary midbody, the phragmoplast expands centrifugally, eventually leading to the formation of the new cell wall.
    The...
    The Phragmoplast01:59

    The Phragmoplast

    Cell division is essential for organismal growth and development. In animal cells, the central spindle and its associated proteins form the midbody, a structure that has an essential role in cytokinesis. In plants, the central spindle, along with the microtubules, actin, and other cell components, matures into the phragmoplast, which is necessary for cytokinesis. Unlike the stationary midbody, the phragmoplast expands centrifugally, eventually leading to the formation of the new cell wall.
    The...
    Seed Structure and Early Development of the Sporophyte02:33

    Seed Structure and Early Development of the Sporophyte

    Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
    Non-vascular Seedless Plants02:26

    Non-vascular Seedless Plants

    The diverse plant life on Earth—consisting of nearly 400,000 species—can be divided into three broad categories based on biological characteristics: nonvascular, seedless vascular, and seed plants.