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関連する概念動画

Gene Regulation During Sporulation01:17

Gene Regulation During Sporulation

651
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
651
Genetics of Speciation02:16

Genetics of Speciation

23.3K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
23.3K
Endospores and Sporulation01:20

Endospores and Sporulation

7.3K
Endospores are specialized, dormant cells primarily formed by Gram-positive bacteria, including Bacillus and Clostridium, enabling survival under extreme environmental conditions. Due to their unique composition and formation process, these structures are highly resistant to physical and chemical insults, such as extreme heat, ultraviolet and ionizing radiation, desiccation, and toxic chemicals. Rare instances of endospore-like structures have also been observed in some Gram-negative bacteria,...
7.3K
Position-effect Variegation02:32

Position-effect Variegation

7.3K
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
7.3K
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

8.1K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
8.1K
Export of Mitochondrial and Chloroplast Genes02:19

Export of Mitochondrial and Chloroplast Genes

4.4K
A eukaryotic cell can have up to three different types of genetic systems: nuclear, mitochondrial, and chloroplast. During evolution, organelles have exported many genes to the nucleus; this transfer is still ongoing in some plant species. Approximately 18% of the Arabidopsis thaliana nuclear genome is thought to be derived from the chloroplast’s cyanobacterial ancestor, and around 75% of the yeast genome derived from the mitochondria’s bacterial ancestor. This export has occurred...
4.4K

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Updated: Apr 5, 2026

Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format
08:54

Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format

Published on: September 17, 2016

10.9K

遺伝: 位置が胞子化に影響する

Beth A Lazazzera1, Diarmaid Hughes2

  • 1Department of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles, Los Angeles, California 90095, USA.

Nature
|August 20, 2015
PubMed
まとめ

No abstract available in PubMed .

さらに関連する動画

Use of Time-Lapse Microscopy and Stage-Specific Nuclear Depletion of Proteins to Study Meiosis in S. cerevisiae
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Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores
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関連する実験動画

Last Updated: Apr 5, 2026

Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format
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Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format

Published on: September 17, 2016

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Use of Time-Lapse Microscopy and Stage-Specific Nuclear Depletion of Proteins to Study Meiosis in S. cerevisiae
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Use of Time-Lapse Microscopy and Stage-Specific Nuclear Depletion of Proteins to Study Meiosis in S. cerevisiae

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Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores
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Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores

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