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

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
Sulfur Assimilation01:20

Sulfur Assimilation

46
Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
46
Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

13.6K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.6K
Antidotes01:17

Antidotes

709
Antidotes are medicinal substances used to counteract the harmful effects of toxins or drugs in the body. They function in various ways, each uniquely designed to combat specific toxic compounds.
Specific antidotes operate by inhibiting the enzymes that control biochemical pathways, reducing the production of harmful metabolites.
An example of an antidote is atropine, which counteracts the detrimental effects of cholinesterase inhibitors. It achieves this by deactivating muscarinic receptors,...
709
Other Stress Responses in Bacteria01:30

Other Stress Responses in Bacteria

36
Bacteria have global regulatory systems that control several types of stress mechanisms. These include Pho regulon and the heat shock response, which are essential systems for environmental adaptation, such as nutrient limitation and proteotoxic stress. The Pho regulon and the heat shock response exemplify bacterial resilience, enabling rapid adaptation to fluctuating environmental conditions.Pho RegulonBacteria require phosphorus for essential cellular processes, including nucleic acid...
36
Preparation and Reactions of Thiols02:33

Preparation and Reactions of Thiols

6.5K
Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
6.5K

You might also read

Related Articles

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

Sort by
Same author

Ecotoxicological assessment of arsenic contamination: Biological responses and bioaccumulation capacity in Leptodictyum riparium and Lymnaea stagnalis, individually and in a microcosm.

Aquatic toxicology (Amsterdam, Netherlands)·2026
Same author

Mosses and Snails as Bioindicators Reflecting the Biologically Relevant Fraction of Toxic Elements.

International journal of molecular sciences·2026
Same author

Phosphorus Loading Drives Microalgal Community Changes and Enhances Nutrient Removal in Photobioreactors Treating Synthetic Wastewater.

Plants (Basel, Switzerland)·2026
Same author

Kenyan <i>Orthosiphon schimperi</i> Benth. Essential Oil: Chemical Composition and Cytotoxic Activity on HeLa Cells.

Plants (Basel, Switzerland)·2025
Same author

Analytical Determination of the Lipid Fraction of <i>Nigella sativa</i> Fatty Oil by GC and NMR Analysis and Evaluation of Its Cytotoxic and Antioxidant Activity.

Molecules (Basel, Switzerland)·2025
Same author

Biomonitoring of potentially toxic elements at two differentially anthropized areas of the "Land of Fires" (S Italy).

The Science of the total environment·2025

Related Experiment Video

Updated: Aug 5, 2025

Profiling Thiol Redox Proteome Using Isotope Tagging Mass Spectrometry
12:07

Profiling Thiol Redox Proteome Using Isotope Tagging Mass Spectrometry

Published on: March 24, 2012

16.3K

Non-Protein Thiol Compounds and Antioxidant Responses Involved in Bryophyte Heavy-Metal Tolerance.

Giovanna Salbitani1, Viviana Maresca1, Piergiorgio Cianciullo1

  • 1Department of Biology, University of Naples Federico II, 80138 Naples, Italy.

International Journal of Molecular Sciences
|March 29, 2023
PubMed
Summary

Heavy-metal pollution harms plants and animals. Metal-tolerant plants, especially bryophytes, use chelation, sequestration, and antioxidants to defend against toxic metal effects.

Keywords:
antioxidant enzymesbryophyteglutathioneheavy metalsmetal tolerancephytochelatinsstress responses

More Related Videos

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
07:16

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

Published on: June 21, 2021

1.8K
Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution
07:20

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution

Published on: December 30, 2021

3.6K

Related Experiment Videos

Last Updated: Aug 5, 2025

Profiling Thiol Redox Proteome Using Isotope Tagging Mass Spectrometry
12:07

Profiling Thiol Redox Proteome Using Isotope Tagging Mass Spectrometry

Published on: March 24, 2012

16.3K
Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
07:16

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

Published on: June 21, 2021

1.8K
Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution
07:20

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution

Published on: December 30, 2021

3.6K

Area of Science:

  • Environmental Science
  • Plant Biology
  • Toxicology

Background:

  • Heavy-metal pollution is a significant environmental concern with documented biological effects.
  • Plants possess defense mechanisms against heavy metals, including oxidative stress and genotoxicity.
  • Metal-tolerant species exhibit specialized strategies to mitigate metal toxicity.

Purpose of the Study:

  • To review the defense strategies employed by bryophytes against heavy metals.
  • To discuss the role of non-protein thiol compounds and antioxidants in bryophyte metal tolerance.
  • To highlight the biological effects of heavy metals on plants.

Main Methods:

  • Literature review on heavy metal effects and plant defense mechanisms.
  • Focus on bryophyte species and their tolerance strategies.
  • Analysis of biochemical responses, including chelation, sequestration, and antioxidant systems.

Main Results:

  • Plants, particularly metal-tolerant species, utilize cell-wall immobilization, chelation, and vacuolar sequestration as primary defenses.
  • Bryophytes activate enzymatic and non-enzymatic antioxidant responses to combat heavy metal-induced cellular damage.
  • Non-protein thiols and antioxidant molecules play a crucial role in bryophyte heavy metal detoxification.

Conclusions:

  • Bryophytes demonstrate sophisticated multi-layered defense mechanisms against heavy metal pollution.
  • Understanding these mechanisms in bryophytes can inform strategies for phytoremediation and environmental monitoring.
  • Further research into thiol compounds and antioxidants in bryophytes is warranted for ecological and toxicological applications.