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: Osmolarity01:28

Factors Influencing Microbial Growth: Osmolarity

40
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...
40
Responses to Salt Stress02:02

Responses to Salt Stress

13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
Osmoregulation in Fishes02:32

Osmoregulation in Fishes

49.8K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
49.8K
Frequency-dependent Selection01:21

Frequency-dependent Selection

22.1K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.1K
Types of Selection01:46

Types of Selection

40.6K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
40.6K
Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

1.5K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
1.5K

You might also read

Related Articles

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

Sort by
Same author

Microbially-mediated halogenation and dehalogenation cycling of organohalides in the ocean.

Nature communications·2025
Same author

<i>Bacteroides intestinalis</i> mediates the sensitivity to irinotecan toxicity via tryptophan catabolites.

Gut·2025
Same author

Expression and molecular characterization of an intriguing hyaluronan synthase (HAS) from the symbiont "<i>Candidatus</i> Mycoplasma liparidae" in snailfish.

PeerJ·2025
Same author

Large scale exploration reveals rare taxa crucially shape microbial assembly in alkaline lake sediments.

NPJ biofilms and microbiomes·2024
Same author

BASALT refines binning from metagenomic data and increases resolution of genome-resolved metagenomic analysis.

Nature communications·2024
Same author

A mixed blessing of influent leachate microbes in downstream biotreatment systems of a full-scale landfill leachate treatment plant.

Water research·2024

Related Experiment Video

Updated: Jul 16, 2025

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

25.7K

Salinity-triggered homogeneous selection constrains the microbial function and stability in lakes.

Li Wang1, Chunang Lian1, Wenjie Wan2

  • 1School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.

Applied Microbiology and Biotechnology
|September 9, 2023
PubMed
Summary

Salinity significantly shapes inland lake prokaryotic communities, favoring specific salt-tolerant microbes and altering microbial network stability and function under high salt conditions.

Keywords:
Biogeographic distributionFunctional diversityMicrobial interactionPhylogenetic clusteringStochastic versus deterministic

More Related Videos

Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential
14:38

Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential

Published on: April 20, 2012

11.5K
The Use of Chemostats in Microbial Systems Biology
13:19

The Use of Chemostats in Microbial Systems Biology

Published on: October 14, 2013

31.0K

Related Experiment Videos

Last Updated: Jul 16, 2025

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology
10:43

Unraveling the Unseen Players in the Ocean - A Field Guide to Water Chemistry and Marine Microbiology

Published on: November 5, 2014

25.7K
Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential
14:38

Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential

Published on: April 20, 2012

11.5K
The Use of Chemostats in Microbial Systems Biology
13:19

The Use of Chemostats in Microbial Systems Biology

Published on: October 14, 2013

31.0K

Area of Science:

  • Environmental Microbiology
  • Ecology
  • Biogeochemistry

Background:

  • Inland water salinization is increasing globally due to climate change and human activities.
  • The effects of salinization on prokaryotic plankton and their ecological roles remain poorly understood.

Purpose of the Study:

  • To investigate the impact of salinity on prokaryotic plankton community structure, function, and ecological networks in inland lakes.
  • To identify key environmental drivers shaping these communities.

Main Methods:

  • Utilized a space-for-time substitution approach across 11 lakes with varying salinities.
  • Employed 16S rRNA gene amplicon and metagenomic sequencing to analyze prokaryotic plankton communities.

Main Results:

  • Salinity was the primary driver of prokaryotic plankton beta-diversity.
  • High salinity led to homogeneous selection, favoring specific halotolerant strategies and reducing taxonomic and functional diversity.
  • Microbial networks became less stable and more precarious under elevated salinity.

Conclusions:

  • Salinity acts as a strong selective pressure, altering microbial community assembly and function in inland lakes.
  • Understanding these impacts is crucial for conserving lake biodiversity and ecosystem services in salinizing environments.