Embryonic Larval Preparation
Embryonic Larval Preparation - Related Videos
05:58
Analysis of Embryonic and Larval Zebrafish Skeletal Myofibers from Dissociated Preparations
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Cited by 21 •
2013
Zebrafish are an emerging system for modeling human disorders of the skeletal muscle. We describe a fast and efficient method to isolate skeletal muscle myofibers from embryonic and larval zebrafish. This method yields a high-density myofiber preparation suitable for study of single skeletal muscle fiber morphology, protein subcellular localization, and muscle physiology.
07:18
Visualization of Larval Segmental Nerves in 3rd Instar Drosophila Larval Preparations
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Cited by 13 •
2010
Drosophila melanogaster larvae provide an ideal model system to investigate the mechanisms of axonal transport within larval segmental nerves. Using this procedure, 3rd instar larvae carrying various mutations can be compared to wild type larvae.
10:10
Sonication-facilitated Immunofluorescence Staining of Late-stage Embryonic and Larval Drosophila Tissues In Situ
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Cited by 5 •
2014
Immunostaining is an effective technique for visualizing specific cell types and proteins within tissues. By utilizing sonication, the protocol described here alleviates the need to dissect Drosophila melanogaster tissues from late-stage embryos and larvae before immunostaining. We provide an efficient methodology for the immunostaining of formaldehyde-fixed whole mount larvae.
06:08
High-resolution Cell Transplantation in Embryonic and Larval Zebrafish
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2024
Here we present a protocol to transplant cells with high spatial and temporal resolution in zebrafish embryos and larvae at any stage between at least 1 and 7 days post fertilization.
03:16
Larval Fillet Preparation: A Method to Visualize Intact Sensory Neurons and Associated Epidermal Cells
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2023
This video describes how to prepare larval fillets used to visualize sensory dendritic arborization (da) neurons and their associated epidermal cells. The featured protocol shows in detail how to remove muscle tissue from the body wall while preserving the cells' morphology, which improves immunostaining and visualization of the otherwise obscured da neurons and epidermal cells.
FAQs
Developmental staging links each specimen to a defined point in embryonic or larval development. This reduces variation caused by differences in specimen age and allows researchers to compare morphology, gene expression, organ formation, or tissue differentiation across samples. Accurate staging is therefore essential when an experiment aims to associate an observed feature with a particular developmental period.
Immobilization limits specimen movement during examination or manipulation, while mounting helps maintain a consistent position. Together, these measures preserve the intended orientation and make comparable regions easier to image or dissect. Consistent positioning can improve the reliability of microscopy and reduce variation caused by movement or differences in how individual specimens are aligned.
Interfering external materials should be removed when they obstruct examination or experimental manipulation, but removal is not presented as necessary in every preparation. The decision depends on whether those materials limit access, visibility, or positioning. Applying this step selectively helps expose the developing specimen while avoiding an unnecessary change to the preparation.
A preparation generally begins by collecting embryos or larvae and selecting or preserving them at defined developmental stages. The specimen may then have interfering external materials removed, when necessary, before immobilization and mounting. Finally, it is positioned for examination or manipulation. Maintaining consistent handling and orientation throughout this workflow supports more reproducible observations.
Prepared embryos and larvae can be examined by microscopy and used for developmental phenotyping, gene-expression analysis, or experimental studies of organ formation and tissue differentiation. The preparation provides a stable, consistently positioned specimen for these assessments. As a result, researchers can compare developmental features and relate visible or molecular patterns to defined stages.
In developmental biology, preparation quality directly affects the comparability of specimens used to study how organs form and tissues differentiate. Controlling developmental stage, specimen condition, and orientation reduces experimental variation. This makes it easier to distinguish genuine biological differences from inconsistencies introduced during handling, strengthening interpretation of microscopy, phenotyping, and gene-expression results.