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Videos de Conceptos Relacionados

Plant Cell Wall02:43

Plant Cell Wall

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The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.
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Plant Cell Wall01:07

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Plant cells have a cell wall, a rigid outer covering that protects the cell and provides shape and support. During cell division, a mixture of enzymes, proteins, and glucose molecules is transported via vesicles to the center of the cell. These vesicles continuously fuse and build a cell plate between the dividing cells. As the cell plate matures, new polysaccharides are added to it to form the cell walls of the daughter cells. The predominant polysaccharide in the cell wall is cellulose, made...
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Role of Microtubules in Cell Wall Deposition01:02

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Microtubules are small hollow tubes in eukaryotic cells. The cell wall microtubules are polymerized dimers of two globular proteins, α-tubulin and β-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton. They help the cell resist compression and provide a track along which vesicles move through the cell or pull replicated chromosomes to opposite ends of a dividing cell. Microtubules go through quick cycles of...
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Archaeal Cell Wall01:29

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Archaeal cell walls are structurally and compositionally distinct from their bacterial counterparts, lacking the characteristic peptidoglycan layer found in most bacteria. Instead, archaeal cell walls exhibit remarkable diversity, utilizing materials such as pseudomurein, polysaccharides, and proteins to construct their protective outer layers. This structural flexibility is closely tied to archaea's ecological adaptability.S-Layers: The Common Archaeal Cell WallThe S-layer is the most...
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The Phragmoplast01:59

The Phragmoplast

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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...
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Cellulose and Pectic Polysaccharides01:15

Cellulose and Pectic Polysaccharides

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 Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth.  Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
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Application of Membrane and Cell Wall Selective Fluorescent Dyes for Live-Cell Imaging of Filamentous Fungi
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Remodelación de la pared celular de la raíz durante la colonización microbiana simbiótica

Elizabeth Monroy-Morales1, Manoj-Kumar Arthikala2, Jesús Montiel1

  • 1Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México (UNAM), Cuernavaca, Mexico.

Frontiers in plant science
|February 19, 2026
PubMed
Resumen

Las raíces de las plantas forman relaciones simbióticas con los microbios, lo que requiere modificaciones en la pared celular para la entrada. Esta revisión explora las proteínas de la pared celular que facilitan la colonización microbiana en las raíces de las plantas para obtener beneficios mutualistas.

Palabras clave:
plantas actinorrícicasenzima remodeladora de la pared celularsimbiosis leguminosa-rizobiocolonización de micorrizaspared celular vegetalsimbiosis

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Área de la Ciencia:

  • Biología Vegetal
  • Microbiología
  • Bioquímica

Sus antecedentes:

  • Las raíces de las plantas anclan las plantas y absorben agua/nutrientes.
  • Las raíces participan en relaciones simbióticas, notablemente mutualismo, con microorganismos.
  • Las simbiosis de micorrizas arbusculares y nódulos radiculares son ejemplos clave de mutualismo planta-microbio.

Objetivo del estudio:

  • Revisar las modificaciones de la pared celular en las raíces de las plantas durante la entrada simbiótica microbiana.
  • Centrarse en el papel de las proteínas remodeladoras de la pared celular en estos procesos.

Principales métodos:

  • Revisión de la literatura sobre el conocimiento actual de la simbiosis de la raíz de la planta.
  • Análisis de la función de las familias de proteínas de la pared celular en la interacción microbiana.

Principales resultados:

  • La colonización microbiana requiere alteraciones en la biomecánica de la pared celular de la raíz de la planta.
  • Familias específicas de proteínas de la pared celular están involucradas en la modulación de estos cambios.
  • Estas modificaciones son críticas para la formación exitosa de estructuras simbióticas.

Conclusiones:

  • La remodelación de la pared celular es un paso crucial para la entrada de microbios en las raíces de las plantas.
  • La comprensión de las proteínas de la pared celular ofrece información sobre las interacciones mutualistas planta-microbio.