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Plasmodesmata

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The organs in a multicellular organism’s body are made up of tissues formed by cells. To work together cohesively, cells must communicate. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.Intercellular junctions are a feature of fungal, plant, and animal cells alike. However, different types of junctions are found in different kinds of cells. Intercellular junctions found in animal...

Plasmodesmata

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In a multicellular organism, cells must communicate to work together in a coordinated manner. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.
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The complex three-dimensional arrangement of cells in any multicellular organism is defined and maintained by interactions of cells with each other and the extracellular matrix. Cell-cell junctions are specialized structures where the multi-protein complexes on one cell interact with the multi-protein complexes on another cell. These cell junctions are classified into three main types based on their function — occluding, anchoring, and gap junctions.
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Visualizing Cytoplasmic Flow During Single-cell Wound Healing in Stentor coeruleus

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INTERCELLULAR CONNECTIONS IN THE OUTGROWING STOLON OF CORDYLOPHORA.

¹The Whitman Laboratory, The University of Chicago, Chicago.

The Journal of Cell Biology

|October 30, 2009

Summary

This summary is machine-generated.

The generative region of the hydroid Cordylophora stolon is at its base, with interstitial cells driving growth. The stolon tip synthesizes new perisarc for advancement, not proliferation.

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Fluorescent In Situ Hybridization and 5-Ethynyl-2'-Deoxyuridine Labeling for Stem-Like Cells in the Hydrozoan Jellyfish Cladonema pacificum

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Published on: August 3, 2022

Area of Science:

Cell Biology
Zoology
Developmental Biology

Background:

The outgrowth of hydroid stolons is crucial for colony expansion.
Understanding cellular mechanisms of stolon growth is key to hydroid development.

Purpose of the Study:

To investigate the cellular basis of stolon outgrowth in Cordylophora.
To correlate cellular structure and intercellular attachments with stolon tip advancement.

Main Methods:

Histological examination and staining experiments were employed.
Fine structure analysis of cellular relationships was performed.
Intercellular attachments were studied using electron microscopy.

Main Results:

The generative region of the stolon is located at its base, characterized by prominent interstitial cells.
Stolon tip ectoderm cells synthesize new perisarc for substrate coverage, rather than proliferating.
Intercellular attachments, including septa and plasma membrane variations, were described in detail and compared to Hydra.

Conclusions:

Cellular differentiation and specialized functions, rather than uniform proliferation, characterize stolon outgrowth.
Intercellular attachment structures vary along the stolon, correlating with functional zones.
The study provides a detailed cellular-level understanding of hydroid stolon development.