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sclerenchyma    
厚壁组织

厚壁组织


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  • Sclerenchyma | Description, Types, Function | Britannica
    Sclerenchyma, in plants, support tissue composed of any of various kinds of hard woody cells Mature sclerenchyma cells are usually dead and have thick secondary cell walls They are commonly found as fibers or sclereids in nongrowing regions of plant bodies, such as in seed coats, bark, or vascular bundles
  • Sclerenchyma – Definition, Meaning, Characteristics, Functions
    Sclerenchyma is a dead cell that has thick secondary cell walls found in the nongrowing regions of the plant body, such as bark and stems They are a type of simple permanent tissue that also forms a part of the ground tissues along with parenchyma and collenchyma in plants
  • Ground tissue - Wikipedia
    Sclerenchyma cells are the principal supporting cells in plant tissues that have ceased elongation Sclerenchyma fibers are of great economic importance, since they constitute the source material for many fabrics (e g flax , hemp , jute , and ramie )
  • Sclerenchyma Cells: Structure, Types, Functions - Biology Learner
    Sclerenchyma is a type of simple permanent tissue that provides structural support to the plant It consists of thick-walled, lignified sclerenchyma cells The cells mostly lack protoplasm at maturity and become dead
  • Sclerenchyma - an overview | ScienceDirect Topics
    Sclerenchyma (Gr scleros, hard + enchyma, infusion, in reference to the infusion of lignin in the secondary cell walls) consists of nonconductive cells that have a thick, lignified secondary cell wall, typically with pits, and that are dead at maturity
  • Sclerenchyma Tissue - Biology Reader
    Sclerenchyma tissue refers to one of the types of ground or simple permanent tissues, which possesses both primary and stiff secondary wall They exist as rigid woody cell with a compact arrangement Sclerenchyma tissues aid cell integrity and conduction instead of being a dead cell
  • Sclerenchyma - Definition and Examples - Biology Online
    In plants, the sclerenchyma is one of the three fundamental types of tissues The other two are the collenchyma and the parenchyma The cells that make up the sclerenchyma are distinct from those of collenchyma and parenchyma in having thick and tough cell wall
  • Sclerenchyma - Southern Illinois University Carbondale
    In addition to collenchyma, sclerenchyma is one of the principal supporting tissues in a plant It is composed of cells that are dead at maturity with thick 2˚ walls that are often lignified The thick cell wall is often laminated, showing it was laid down in layers





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