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

Adhesion01:14

Adhesion

44.8K
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow...
44.8K
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions01:29

Hypersensitivity Reactions: Delayed Hypersensitivity Reactions

18
Delayed-Type Hypersensitivity (DTH), or Type IV hypersensitivity, is a cell-mediated immune response. It occurs when T cells, rather than antibodies, mediate a reaction to specific antigens. It is characterized by a delayed onset (1-2 days) and involves the recruitment of macrophages to the inflammation site.The initiation of a DTH response begins with the sensitization of T cells. During this phase, which lasts at least 1-2 weeks, antigen-specific T cells are activated, clonally expanded, and...
18
Cell Adhesion in Plants01:14

Cell Adhesion in Plants

3.4K
Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
3.4K
Immunoglobulin-like Cell Adhesion Molecules01:31

Immunoglobulin-like Cell Adhesion Molecules

4.4K
Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
4.4K
Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

3.7K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
3.7K
Oral Drug Delivery Systems: Delayed-Release Systems01:11

Oral Drug Delivery Systems: Delayed-Release Systems

24
Delayed-release drug delivery systems are specialized pharmaceutical formulations designed to postpone the release of active compounds until the drug reaches a specific region of the gastrointestinal (GI) tract, typically the intestine. These systems are essential for drugs that may cause gastric irritation, are unstable in acidic environments, or need to exert therapeutic effects locally in the intestinal or colonic regions.The core feature of delayed-release systems is the use of enteric...
24

You might also read

Related Articles

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

Sort by
Same authorSame journal

Lines of dehiscence as a biomechanical strategy for controlling damage during blade development in the bull kelp Nereocystis luetkeana.

Journal of phycology·2026
Same author

Holdfast adhesion in the kelp Alaria marginata: Cell wall polysaccharides and phenolics.

Journal of phycology·2026
Same author

Adapting the growth-form concept to geniculate coralline algae (Corallinales, Rhodophyta).

Journal of phycology·2026
Same author

An updated classification of growth forms in non-geniculate coralline algae (Corallinophycidae, Rhodophyta).

Journal of phycology·2026
Same author

Suboptimal is good enough: Aligning thermal sensitivity to habitat temperature across season.

The Journal of animal ecology·2025
Same author

Identifying putative calcification and decalcification genes in the geniculate coralline alga, Calliarthron tuberculosum.

Journal of phycology·2025

Related Experiment Video

Updated: Feb 16, 2026

Monitoring Gut Acidification in the Adult Drosophila Intestine
04:39

Monitoring Gut Acidification in the Adult Drosophila Intestine

Published on: October 11, 2021

3.9K

Macroalgal spore dysfunction: ocean acidification delays and weakens adhesion.

Rebecca Guenther1,2, Kevin Miklasz2, Emily Carrington2,3

  • 1Botany Department and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada, V6T 1Z4.

Journal of Phycology
|December 31, 2017
PubMed
Summary

Ocean acidification impairs macroalgal spore adhesion, delaying settlement and weakening attachment. This effect differs between species, potentially impacting marine communities.

Keywords:
CorallinaPolyosteaPterosiphoniapHadhesionalgaeclimate changelife cyclepropagulesshear stress

More Related Videos

Spore Adsorption as a Nonrecombinant Display System for Enzymes and Antigens
07:42

Spore Adsorption as a Nonrecombinant Display System for Enzymes and Antigens

Published on: March 19, 2019

7.1K
Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores
08:58

Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores

Published on: April 15, 2019

10.6K

Related Experiment Videos

Last Updated: Feb 16, 2026

Monitoring Gut Acidification in the Adult Drosophila Intestine
04:39

Monitoring Gut Acidification in the Adult Drosophila Intestine

Published on: October 11, 2021

3.9K
Spore Adsorption as a Nonrecombinant Display System for Enzymes and Antigens
07:42

Spore Adsorption as a Nonrecombinant Display System for Enzymes and Antigens

Published on: March 19, 2019

7.1K
Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores
08:58

Visualization of Germinosomes and the Inner Membrane in Bacillus subtilis Spores

Published on: April 15, 2019

10.6K

Area of Science:

  • Marine Biology
  • Oceanography
  • Ecology

Background:

  • Early life stages of marine organisms are vulnerable to ocean acidification.
  • Macroalgal reproduction depends on spore settlement, a process largely unstudied under reduced pH conditions.

Discussion:

  • Reduced pH significantly delays spore attachment in both calcified and non-calcified macroalgae.
  • Ocean acidification weakens spore attachment strength in calcified species (Corallina vancouveriensis) but not non-calcified ones (Polyostea robusta).
  • The mechanism involves disruption of adhesive compounds (polysaccharides, glycoproteins) due to protonation and cation displacement.

Key Insights:

  • Ocean acidification negatively impacts macroalgal spore adhesion.
  • The effects of reduced pH on spore adhesion are species-specific.
  • Spore dysfunction under ocean acidification can affect macroalgal populations irrespective of adult tolerance.

Outlook:

  • Further research is needed to experimentally verify the proposed adhesive disruption mechanism.
  • Field studies are crucial to confirm if these laboratory findings translate to natural marine environments.
  • Ocean acidification poses a threat to macroalgal communities through impaired spore settlement and adhesion.