Stage 15 Isolation
Stage 15 Isolation - Related Videos
08:05
Efficient and Rapid Isolation of Early-stage Embryos from Arabidopsis thaliana Seeds
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Cited by 17 •
2013
We report an efficient and simple method to isolate embryos at early stages of development from Arabidopsis thaliana seeds. Up to 40 embryos can be isolated in 1 hr to 4 hr, depending on the downstream application. The procedure is suitable for transcriptome, DNA methylation, reporter gene expression, immunostaining and fluorescence in situ hybridization analyses.
01:16
Other Nuclides: 31P, 19F, 15N NMR
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2024
Many organic, inorganic, and biological molecules contain spin-half nuclei such as nitrogen-15, fluorine-19, and phosphorus-31. As a result, NMR studies of these nuclei have found extensive applications in chemical and biological research. While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a high...
08:44
The Utility of Stage-specific Mid-to-late Drosophila Follicle Isolation
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Cited by 12 •
2013
Stage-specific isolation of mid-to-late Drosophila follicles is useful for a variety of purposes. Such follicles develop in culture, which allows for genetic and/or pharmacologic manipulations to be coupled with in vitro development assays and live imaging. Additionally, follicles can be used for molecular studies, such as isolating mRNA and protein.
08:23
Phenotypic Analysis of Rodent Malaria Parasite Asexual and Sexual Blood Stages and Mosquito Stages
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Cited by 10 •
2019
Due to the striking similarities of the life cycle and biology of rodent malaria parasites to human malaria parasites, rodent malaria models have become indispensable for malaria research. Herein, we standardized some of the most important techniques used in the phenotypic analysis of wild-type and transgenic rodent malaria species.
05:12
Rapid Isolation of Stage I Oocytes in Zebrafish Devoid of Granulosa Cells
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Cited by 1 •
2024
This protocol describes a modified procedure for rapidly isolating clean stage I oocytes in zebrafish devoid of granulosa cells, thereby providing a convenient method for oocyte-specific research.
FAQs
Morphological staging narrows the experiment to a defined point in early development rather than relying only on broad embryonic age. This standardization makes samples more comparable and helps researchers relate visible tissue organization to cellular differentiation and developmental signaling. As a result, differences observed between preparations are more likely to reflect experimental variables rather than substantial differences in developmental timing.
Preserving structure maintains the spatial relationships that characterize the embryonic tissue, while preserving viability allows the isolated material to support later analysis or growth in culture. Sterile microsurgical manipulation serves both goals by separating the specimen from surrounding tissues while limiting damage and contamination. These conditions are essential when interpreting tissue organization, differentiation, or subsequent development.
A defined stage provides a snapshot in which embryonic morphology can be examined alongside cellular and molecular events. Researchers can use the isolated material to investigate how tissue organization relates to cell differentiation and developmental signaling, then assess how those early features connect with later growth. This makes the preparation useful for linking visible structure with underlying developmental processes.
The workflow begins by identifying the specimen through morphological staging. Researchers then locate the stage 15 embryo or tissue within the surrounding material and use sterile microsurgical manipulation to remove it. Throughout separation, the procedure aims to preserve the specimen’s structure and viability, creating material suitable for downstream embryology experiments rather than merely obtaining an isolated fragment.
Isolated material can support investigations of tissue organization, cell differentiation, developmental signaling, and subsequent growth in culture. The choice of analysis depends on the experimental question, but the common advantage is that each preparation represents a defined developmental window. This allows researchers to compare how early structural features relate to cellular behavior and later developmental outcomes.
The method is particularly useful when researchers need consistent material from early development for comparisons across samples or experiments. It supports embryology studies that examine how organized tissues emerge, how cells begin differentiating, and how signaling contributes to later growth. By controlling developmental timing, the approach helps distinguish stage-related changes from differences caused by experimental conditions.