Melanophore Stripes
Melanophore Stripes - Related Videos
10:07
Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers
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2014
High-resolution intravital imaging with enhanced contrast up to 120 µm depth in lymph nodes of adult mice is achieved by spatially modulating the excitation pattern of a multi-focal two-photon microscope. In 100 µm depth we measured resolutions of 487 nm (lateral) and 551 nm (axial), thus circumventing scattering and diffraction limits.
08:11
Stripe Assay to Study the Attractive or Repulsive Activity of a Protein Substrate Using Dissociated Hippocampal Neurons
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Cited by 7 •
2016
Axon guidance molecules regulate neuronal migration and targeted growth-cone navigation. We present a powerful method, the stripe assay, to assess the ability of guidance molecules to attract or repulse neurons. In this protocol, we demonstrate the stripe assay by showing FLRT2's ability to repel cultured hippocampal neurons.
03:45
Assessing Attractive or Repulsive Activity of Proteins Using Hippocampal Neurons
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2025
This video demonstrates a method to assess protein activity using hippocampal neurons over patterned protein zones. Neurons exhibit repulsion in test protein zones and attachment in control protein zones, highlighting the effects of attractive or repulsive protein activity.
08:50
Visually Mediated Odor Tracking During Flight in Drosophila
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Cited by 8 •
2009
Here we describe how to optimize the acquired video image for an olfactory magnetic-tether (OMT) apparatus. We also describe two sample experimental protocols for studying visuo-olfactory fusion.
04:02
Optokinetic Response Assay: A Method to Measure Visual Acuity in Zebrafish
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2023
This video describes the optokinetic response assay in zebrafish. The video measures the reflexive eye movements based on the visual moving stimulus and determines the visual acuity in zebrafish.
FAQs
Stripe architecture depends on both where melanophores move and how many cells are present. Migration changes the spatial placement of pigment cells, while proliferation can increase the cellular contribution to a developing band. Examining these processes together helps explain why stripes change in width and organization rather than treating pattern formation as a static arrangement.
Melanophores do not organize independently. Their interactions with neighboring xanthophores and iridophores contribute to the arrangement and contrast of patterned bands. This cellular cooperation makes melanophore stripes a useful system for studying communication between pigment-cell types and for understanding how local interactions produce visible tissue-level organization.
The position of a melanophore and the distribution of its melanin can influence different features of the pattern. Changes in pigment dispersion alter how dark a region appears, while changes in cell position can modify stripe boundaries or width. Separating these effects helps researchers interpret whether a pattern change reflects cell relocation, pigment distribution, or both.
Their visible organization connects cellular behavior with larger developmental outcomes. By examining stripe formation, researchers can investigate cell communication, developmental patterning, and the ways coordinated pigment-cell behavior produces tissue structure. The system therefore links microscopic changes in cell position or interaction to an easily observed biological pattern.
Because stripe patterns depend on organized pigment-cell behavior, they provide a visible context for examining how patterning is re-established during regeneration. Researchers can use changes in melanophore organization as an outcome when investigating whether cellular interactions and tissue-level arrangement are restored. This makes regeneration accessible through changes in a recognizable pattern.
Genetic changes can be examined through their effects on melanophore organization, pigment distribution, and interactions with neighboring chromatophores. Comparing altered patterns with typical stripe arrangements helps connect genetic variation to visible pigmentation outcomes. This approach supports research into how genes influence developmental patterning and contributes to investigations of pigment-cell disorders.
The system shows how coordinated behavior among cells can generate regular, visible organization in living tissue. Its value extends beyond vertebrate pigmentation because it provides a model for connecting cell communication and developmental processes with pattern outcomes. Findings from this context can inform broader investigations of how biological patterns arise and change.