Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Factors Influencing Microbial Growth: Temperature01:27

Factors Influencing Microbial Growth: Temperature

984
Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...
984
Factors Influencing Microbial Growth: Osmolarity01:28

Factors Influencing Microbial Growth: Osmolarity

594
Osmolarity is the measure of solute concentration in a solution. It plays a critical role in determining water availability for organisms. Water moves across semipermeable membranes through osmosis, flowing from regions of lower solute concentration (more dilute) to regions of higher solute concentration (more concentrated).In high-solute environments, microbial cells lose water, leading to dehydration and inhibited growth. The extent to which water is available to microbes in such environments...
594
Factors Influencing Microbial Growth: pH01:29

Factors Influencing Microbial Growth: pH

919
Microorganisms are classified as acidophiles, neutrophiles, or alkaliphiles based on their pH growth preferences, reflecting their adaptations to specific environments. Maintaining a stable intracellular pH is critical for macromolecular stability and enzymatic activity, which can be challenged by external pH variations.Neutrophiles, such as Escherichia coli, grow optimally between pH 5.5 and 8.0. These microorganisms inhabit neutral or slightly acidic environments and employ mechanisms like...
919
Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

839
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
839
Oxygen Requirements and Growth Patterns01:29

Oxygen Requirements and Growth Patterns

1.1K
Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...
1.1K
Physical Methods for Controlling Microbial Growth: Temperature01:23

Physical Methods for Controlling Microbial Growth: Temperature

858
Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
858

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Biocidal Conditions in Low-Mars-Orbit Can Inactivate Bioburden on External Mars Spacecraft Surfaces and Dust Particles Within a Few Sols.

Microorganisms·2026
Same author

Simulated Microgravity Enhances Germ Tube Elongation by <i>Golovinomyces cichoracearum</i> on <i>Cucurbita pepo</i> and <i>Arabidopsis thaliana</i> Leaves.

Phytopathology·2025
Same author

Ultrastructure of <i>Serratia liquefaciens</i> Grown at 7 mbar Under Simulated Martian Conditions.

Microorganisms·2025
Same author

A Microbial Survival Model for the Permanently Shadowed Regions of the Moon Shows Long-Term Survival of Terrestrial Microbial Contamination.

Astrobiology·2025
Same author

Hydrogenotrophic methanogenesis at 7-12 mbar by Methanosarcina barkeri under simulated martian atmospheric conditions.

Scientific reports·2025
Same author

Synergistic Interactions among Vacuum, Solar Heating, and UV Irradiation Enhance the Lethality of Interplanetary Space.

Microorganisms·2024
Same journal

Correction: Wang et al. Phosphatidylserine Decarboxylase Promotes Ferroptosis Through STAT3/GPX4 Signaling in Gastric Cancer. <i>Curr. Issues Mol. Biol.</i> 2026, <i>48</i>, 300.

Current issues in molecular biology·2026
Same journal

Exploring the Relationship Between Protein-Level Ratios (rQLTs) and Duodenal Ulcer.

Current issues in molecular biology·2026
Same journal

Metformin as an Innate Immune Modulator: Metabolic and Epigenetic Reprogramming of Innate Immune Cells and Therapeutic Implications.

Current issues in molecular biology·2026
Same journal

Comprehensive Bioinformatic Characterization of CD70, CD80, and TIGIT as Diagnostic, Prognostic, and Immune Biomarkers in Pan-Cancer.

Current issues in molecular biology·2026
Same journal

Genome-Wide Identification and Expression Analysis of the Thaumatin-like Protein Genes in <i>Filipendula ulmaria</i> under <i>Bipolaris sorokiniana</i> Infection.

Current issues in molecular biology·2026
Same journal

Recent Dominant Transposition Events Affect Gene Regulatory Regions, but Not Coding Sequences, in Polar and Brown Bear Genomes.

Current issues in molecular biology·2026
See all related articles

Related Experiment Video

Updated: Dec 30, 2025

Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining
13:11

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

Published on: October 5, 2019

7.1K

Exploring Microbial Activity in Low-pressure Environments.

Petra Schwendner1, Andrew C Schuerger1

  • 1University of Florida, 505 Odyssey Way, Space Life Sciences Lab, Exploration Park, Merritt Island, FL 32953, USA.

Current Issues in Molecular Biology
|January 23, 2020
PubMed
Summary
This summary is machine-generated.

Microorganisms thriving at low atmospheric pressures, known as hypopiezophiles, are crucial for astrobiology research. Understanding their adaptation to Martian pressure is key to assessing planetary habitability and contamination risks.

More Related Videos

Investigating the Detrimental Effects of Low Pressure Plasma Sterilization on the Survival of Bacillus subtilis Spores Using Live Cell Microscopy
10:03

Investigating the Detrimental Effects of Low Pressure Plasma Sterilization on the Survival of Bacillus subtilis Spores Using Live Cell Microscopy

Published on: November 30, 2017

9.9K
A Microfluidic Platform to Study Bioclogging in Porous Media
05:10

A Microfluidic Platform to Study Bioclogging in Porous Media

Published on: October 13, 2022

2.4K

Related Experiment Videos

Last Updated: Dec 30, 2025

Using Flexible Gold-Titanium Reaction Cells to Simulate Pressure-Dependent Microbial Activity in the Context of Subsurface Biomining
13:11

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

Published on: October 5, 2019

7.1K
Investigating the Detrimental Effects of Low Pressure Plasma Sterilization on the Survival of Bacillus subtilis Spores Using Live Cell Microscopy
10:03

Investigating the Detrimental Effects of Low Pressure Plasma Sterilization on the Survival of Bacillus subtilis Spores Using Live Cell Microscopy

Published on: November 30, 2017

9.9K
A Microfluidic Platform to Study Bioclogging in Porous Media
05:10

A Microfluidic Platform to Study Bioclogging in Porous Media

Published on: October 13, 2022

2.4K

Area of Science:

  • Astrobiology
  • Microbiology
  • Planetary Science

Background:

  • Hypopiezophilic and hypopiezotolerant microorganisms are life forms that grow at low atmospheric pressures.
  • Their ability to thrive at Martian atmospheric pressure (0.2 to 1.2 kPa) is critical for astrobiology.
  • Understanding low-pressure effects on microbial life is limited but essential for planetary habitability assessments.

Purpose of the Study:

  • To review current knowledge on microorganisms adapted to low atmospheric pressures.
  • To discuss methods for isolating and cultivating these unique microbes.
  • To highlight the significance of hypopiezophilic and hypopiezotolerant microorganisms for astrobiology research.

Main Methods:

  • Literature review of existing research on hypopiezophilic and hypopiezotolerant microorganisms.
  • Discussion of cultivation and isolation techniques for low-pressure adapted microbes.
  • Analysis of the implications of microbial life at low pressures for astrobiology.

Main Results:

  • Current knowledge on microbial life at low pressures is limited.
  • Specific methods for isolating and cultivating these microorganisms are presented.
  • The importance of these microbes for astrobiology is emphasized.

Conclusions:

  • Hypopiezophilic and hypopiezotolerant microorganisms are vital for astrobiology.
  • Further research is needed to fully understand their role in planetary habitability and contamination.
  • These microbes offer insights into life's potential beyond Earth.