Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Prokaryotic Cells01:51

Prokaryotic Cells

120.9K
Prokaryotes are small unicellular organisms that include the domains—Archaea and Bacteria. Bacteria include many common organisms, such as Salmonella and E. coli, while the Archaea include extremophiles that live in harsh environments, such as volcanic springs.
Like eukaryotic cells, all prokaryotic cells are surrounded by a plasma membrane, have genetic material in the form of single, circular DNA, a cytoplasm that fills the interior of the cell, and ribosomes that synthesize proteins....
120.9K
The Tree of Life - Bacteria, Archaea, Eukaryotes02:40

The Tree of Life - Bacteria, Archaea, Eukaryotes

31.8K
The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both...
31.8K
Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

43.3K
The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
43.3K
Eukaryotic Evolution01:24

Eukaryotic Evolution

30.6K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
30.6K
Conditions on Early Earth02:06

Conditions on Early Earth

88.5K
Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen into the primordial atmosphere. However, organisms with the characteristics of life were not initially present on earth. Scientists have used experimentation to determine how organisms evolved that could grow, reproduce, and maintain an internal environment.
88.5K
Binary Fission01:20

Binary Fission

54.9K
Fission is the division of a single entity into two or more parts, which regenerate into separate entities that resemble the original. Organisms in the Archaea and Bacteria domains reproduce using binary fission, in which a parent cell splits into two parts that can each grow to the size of the original parent cell. This asexual method of reproduction produces cells that are all genetically identical.
54.9K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Targeting the cell membrane in established and emerging model organisms.

Development (Cambridge, England)·2026
Same author

Clonal-aggregative multicellularity tuned by salinity in a choanoflagellate.

Nature·2026
Same author

Connections between physics and metabolism in brain functions.

iScience·2026
Same author

Long-range chemical signalling in vivo is regulated by mechanical signals.

Nature materials·2026
Same author

Targeting the cell membrane in established and emerging model organisms.

bioRxiv : the preprint server for biology·2025
Same author

Environmental stiffness regulates neuronal maturation via Piezo1-mediated transthyretin activity.

Nature communications·2025
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: May 21, 2025

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

652

Las arqueas se vuelven multicelulares bajo presión

Eva K Pillai1,2,3, Thibaut Brunet3

  • 1Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, Heidelberg, Germany.

Science (New York, N.Y.)
|April 3, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Un microbio único del Mar Muerto se transforma en una estructura parecida a un tejido bajo presión. Este descubrimiento revela nuevas estrategias de adaptación microbiana en entornos extremos.

Más Videos Relacionados

Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining
00:13

Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining

Published on: October 5, 2019

6.6K
Author Spotlight: Unraveling the Mysteries of Terrestrial Anaerobic Microorganisms in Uncharted Environments by In Situ Culturing
07:56

Author Spotlight: Unraveling the Mysteries of Terrestrial Anaerobic Microorganisms in Uncharted Environments by In Situ Culturing

Published on: January 12, 2024

825

Videos de Experimentos Relacionados

Last Updated: May 21, 2025

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
08:11

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

Published on: June 14, 2024

652
Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining
00:13

Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining

Published on: October 5, 2019

6.6K
Author Spotlight: Unraveling the Mysteries of Terrestrial Anaerobic Microorganisms in Uncharted Environments by In Situ Culturing
07:56

Author Spotlight: Unraveling the Mysteries of Terrestrial Anaerobic Microorganisms in Uncharted Environments by In Situ Culturing

Published on: January 12, 2024

825

Área de la Ciencia:

  • Microbiología
  • Investigaciones extremófilas
  • La biofísica

Sus antecedentes:

  • El Mar Muerto alberga microorganismos únicos adaptados a la hipersalinidad y la aridez extremas.
  • La comprensión de los mecanismos de adaptación microbiana es crucial para la astrobiología y la biotecnología.

Objetivo del estudio:

  • Investigar los cambios morfológicos y estructurales de un microbio del Mar Muerto bajo estrés mecánico.
  • Para caracterizar el nuevo estado similar al tejido inducido por la compresión.

Principales métodos:

  • Análisis microscópico (microscopía lumínica y electrónica) de muestras microbianas.
  • Aplicación de la compresión mecánica controlada a los cultivos microbianos.
  • Pruebas bioquímicas para analizar los componentes celulares.

Principales resultados:

  • Un microbio específico del Mar Muerto exhibió una notable transición morfológica cuando fue sometido a compresión.
  • El microbio formó un agregado cohesivo, multicelular y parecido a un tejido.
  • Esta transformación implicó cambios significativos en la adhesión celular y la producción de la matriz extracelular.

Conclusiones:

  • Los microbios del Mar Muerto poseen mecanismos de adaptación sofisticados, incluida la capacidad de formar estructuras similares a los tejidos bajo estrés físico.
  • Este hallazgo abre nuevas vías para estudiar la plasticidad microbiana y las posibles aplicaciones en los biomateriales.