Cell Seeding
Cell Seeding - Related Videos
06:26
An Efficient Clearing Protocol for the Study of Seed Development in Tomato (Solanum lycopersicum L.)
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Cited by 2 •
2022
The tomato seed is an important model for studying genetics and developmental biology during plant reproduction. This protocol is useful for clearing tomato seeds at different developmental stages to observe the finer embryonic structure.
04:49
MSC Seeded Scaffold Preparation: A Technique to Prepare Scaffold Seeded with Mesenchymal Stem Cells for Surgical Implantation into Murine Model
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2025
This video describes the technique of seeding mesenchymal stem cells (MSCs) onto a biodegradable poly(lactic acid) (PLA) scaffold. The prepared scaffolds can be implanted into the surgical resection cavity of the brain from where they may migrate towards tumor foci. Further, these cells can be engineered to express therapeutic proteins to stimulate apoptosis in cancer cells.
02:33
Seed Structure and Early Development of the Sporophyte
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2020
Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo. The embryo contains a double set of chromosomes, one set from each parent. Fertilization of the haploid egg by the haploid sperm gives rise to the zygote, which develops into the embryo. The endosperm is a...
08:52
A Seed Coat Bedding Assay to Genetically Explore In Vitro How the Endosperm Controls Seed Germination in Arabidopsis thaliana
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Cited by 23 •
2013
We present the procedure to assemble a seed coat bedding assay (SCBA) from Arabidopsis thaliana seeds. The SCBA was shown to be a powerful tool to explore genetically and in vitro how the endosperm controls seed germination in dormant seeds and in response to light cues. The SCBA is in principle applicable under any situation where the endosperm is suspected to influence embryonic growth.
06:28
Preparation of Intact Tissue for Microscopic Analysis of the Endosperm Cell Layer in Developing and Mature Arabidopsis Seeds
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2025
This protocol describes the preparation of intact samples of the endosperm cell layer in Arabidopsis thaliana seeds. The method requires only common laboratory equipment, such as an injection needle and precision forceps, and enables high-resolution fluorescent live-cell imaging of endosperm cells in both developing and mature seeds.
FAQs
Seeding density changes the local cellular environment. When cells are placed at different densities, cell-cell signaling, morphology, and growth rate may change, even when the culture conditions are otherwise similar. Controlling density therefore helps investigators distinguish treatment effects from variation caused by how closely cells are distributed.
Preparing a uniform suspension helps make the intended density meaningful across samples. If cells are not distributed evenly before placement, nominally identical samples may receive different numbers or local concentrations of cells. That inconsistency can affect attachment, subsequent proliferation, and comparisons between experimental conditions over time.
The receiving environment influences whether cells can attach and remain supported during culture. A culture vessel provides a defined surface, whereas a biomaterial scaffold offers a framework for placement and organization. Selecting an appropriate environment is important when an experiment examines growth on a surface versus organization in a tissue-engineering or three-dimensional model.
Key controls include the cell concentration, the intended seeding density, and how evenly the suspension is distributed across the vessel or scaffold. Maintaining the same approach for each sample reduces avoidable variation in attachment, survival, proliferation, and organization, making later measurements more suitable for comparison.
In cytotoxicity testing, consistent starting conditions help researchers compare how samples respond when cell number and distribution are controlled. In wound-healing assays, a reproducible cell arrangement provides a stable basis for observing changes associated with the assay. In both cases, seeding consistency strengthens comparisons between treated and reference samples.
Tissue-engineering studies use seeding to place cells in biomaterials, while organoid and other three-dimensional culture models require controlled placement within a nonflat context. In these settings, the selected density and distribution can influence organization as well as growth. Standardized preparation helps researchers compare how cells develop across scaffolds or three-dimensional samples.