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

Microbial Morphologies01:29

Microbial Morphologies

1.4K
Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...
1.4K
Diversity of Protists II01:27

Diversity of Protists II

596
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
596
Diversity of Protists III01:27

Diversity of Protists III

522
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
522
Bacterial Phylum Verrucomicrobiota01:26

Bacterial Phylum Verrucomicrobiota

264
The phylum Verrucomicrobiota comprises at least four characterized orders, with most species classified within the order Verrucomicrobiotales. Members of this phylum are either aerobic or facultatively aerobic, with the ability to ferment sugars. A notable exception is the genus Methylacidiphilum, which consists of aerobic methanotrophs. Additionally, some Verrucomicrobiota establish symbiotic relationships with protists. These bacteria are widely distributed across various environments,...
264
Diversity of Protists I01:15

Diversity of Protists I

605
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
605
Bacterial Phylum Planctomycetes01:26

Bacterial Phylum Planctomycetes

214
Planctomycetes are a group of morphologically distinct bacteria predominantly classified into two orders: Planctomycetales and Brocadiales. These gram-negative bacteria exhibit unique features, including division by budding and the presence of stalks or appendages. Their cells are often found in rosette arrangements, and they are notable for possessing an S-layer in their cell envelope, which is relatively uncommon among bacteria. Additionally, Planctomycetes frequently exhibit intracellular...
214

You might also read

Related Articles

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

Sort by
Same author

Genetic evidence for the microphallid trematode <i>Maritrema gratiosum</i> in the Northeast Pacific and an overview of its global distribution.

Journal of helminthology·2026
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

Parasites of the hermit crab Pagurus hirsutiusculus; distribution, prevalence, and thermal ecology.

PloS one·2025

Related Experiment Video

Updated: Nov 12, 2025

Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy
07:00

Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy

Published on: October 4, 2024

854

Kelp-associated Microbiota are Structured by Host Anatomy1.

Matthew A Lemay1,2, Katherine M Davis2, Patrick T Martone1,2

  • 1Hakai Institute, PO Box 309, Heriot Bay, British Columbia, V0P 1H0, Canada.

Journal of Phycology
|March 22, 2021
PubMed
Summary

Microbial communities on kelp vary by tissue age and anatomy. Younger kelp tissues host fewer microbes, while older tissues show greater microbial richness, a pattern seen across multiple species.

Keywords:
Laminaria setchelliibacteriaholobiontmarine microbesprotists

More Related Videos

Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging
09:31

Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging

Published on: July 9, 2021

9.0K
An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
05:27

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

Published on: June 30, 2021

4.7K

Related Experiment Videos

Last Updated: Nov 12, 2025

Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy
07:00

Microbiota of Attine Ants' Gardens: Visualizing a Microbial Landscape by Scanning Electron Microscopy

Published on: October 4, 2024

854
Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging
09:31

Visualization of Gut Microbiota-host Interactions via Fluorescence In Situ Hybridization, Lectin Staining, and Imaging

Published on: July 9, 2021

9.0K
An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
05:27

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

Published on: June 30, 2021

4.7K

Area of Science:

  • Marine microbiology
  • Ecology of seaweed-microbe symbioses

Background:

  • Seaweed-associated microbiota are crucial for marine ecosystems and host health.
  • The fine-scale ecology of seaweed-microbe interactions remains largely unexplored.

Purpose of the Study:

  • To investigate microbial community structure across different anatomical regions of the kelp Laminaria setchellii.
  • To determine if tissue age influences microbial community composition and richness.

Main Methods:

  • Quantified bacterial (16S rRNA gene) and microeukaryote (18S rRNA gene) communities.
  • Compared microbial communities across kelp holdfasts, stipes, blade bases, and blade tips.
  • Analyzed samples from kelp recruits and two additional algal species.

Main Results:

  • Microbial community composition differed significantly across anatomical regions of L. setchellii.
  • Older tissues (holdfasts, blade tips) had higher microbial richness than younger tissues (meristematic regions).
  • Similar patterns were observed in new kelp recruits and other algal species, indicating early establishment.

Conclusions:

  • Tissue age and anatomical location significantly shape seaweed-associated microbial communities.
  • These microbial differences are established early in kelp development.
  • The observed pattern suggests a common feature of seaweed microbiomes across species.