Seed Viability
Seed Viability - Related Videos
12:03
Viability Assays for Cells in Culture
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Cited by 39 •
2014
Therapeutic compounds are often first examined in vitro with viability assays. Blind cell counts by a human observer can be highly sensitive to small changes in cell number but do not assess function. Computerized viability assays, as described here, can assess both structure and function in an objective manner.
05:47
Counting and Determining the Viability of Cultured Cells
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Cited by 19 •
2008
Determining the number of cells in culture is important in standardization of culture conditions and in performing accurate quantitation experiments. In this video, we demonstrate how cells are counted using a hemacytometer.
07:05
Viability of Bioprinted Cellular Constructs Using a Three Dispenser Cartesian Printer
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Cited by 6 •
2015
A Cartesian bioprinter was designed and fabricated to allow multi-material deposition in precise, reproducible geometries, while also allowing control of environmental factors. Utilizing the three-dimensional bioprinter, complex and viable constructs may be printed and easily reproduced.
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...
02:38
Fluorescence-Based Viability Assessment of Oral Anaerobic Bacteria
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2026
Source: Calatayud Arroyo, M., et al. Assessing the Viability of a Synthetic Bacterial Consortium on the In Vitro Gut Host-microbe Interface. J. Vis. Exp. (2018)The video demonstrates a method to evaluate the viability of anaerobic oral bacteria using fluorescent dyes and flow cytometry. It begins with culturing bacteria in oxygen-free broth, followed by resuspending a single colony from a blood agar plate. After incubation and dilution, the culture is stained with membrane-permeable and...
FAQs
These conditions affect cellular integrity and metabolism while a seed remains in storage. Unfavorable moisture, temperature, or oxygen conditions can accelerate deterioration, reducing the seed’s later germination potential. Because storage duration adds further exposure, researchers evaluate these environmental factors together when selecting conditions intended to preserve seeds for conservation, agriculture, or future ecosystem renewal.
As storage continues, seeds remain exposed to conditions that may damage cellular integrity or alter metabolism. This can progressively reduce their capacity to germinate, even when the seeds initially appeared suitable for storage. Tracking viability over time therefore helps researchers estimate seed-bank longevity and determine whether existing storage conditions continue to protect germination potential.
Seed viability assessments must account for both dormancy and environmental deterioration. Dormancy can affect whether a seed germinates during an assessment, while unfavorable moisture, temperature, or oxygen conditions can reduce underlying cellular integrity and metabolism. Considering these influences helps researchers interpret germination results more accurately rather than treating every failure to germinate as evidence of the same biological condition.
A germination test provides evidence of whether stored seeds retain the capacity to produce healthy, germinating plants. Researchers can use the results to evaluate changes in germination potential, compare storage outcomes, and estimate whether a seed collection remains suitable for later use. Related physiological measurements can add information about the condition of seeds when germination results alone are insufficient.
Researchers use germination tests or related physiological measurements to assess how environmental conditions and storage duration affect seed condition. Germination results indicate practical performance, while physiological measurements can help examine changes associated with cellular integrity and metabolism. Together, these approaches support decisions about storage conditions, seed-bank longevity, and the continued usefulness of conserved material.
After environmental disturbance, viability assessments help determine whether native seeds can contribute to vegetation recovery. The results indicate which stored or collected material retains germination potential, supporting restoration planning and evaluation of ecosystem renewal. In a changing climate, these measurements also help connect seed conservation decisions with the prospects for maintaining biodiversity and recovering native vegetation.