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

Sperm Transport01:15

Sperm Transport

4.5K
The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
4.5K
Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

13.2K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
13.2K
Spermatogenesis01:41

Spermatogenesis

124.4K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
124.4K
Microtubules in Cell Motility01:24

Microtubules in Cell Motility

5.0K
Microtubules are thick hollow cylindrical proteins that help form the cytoskeleton. Microtubules have varied roles in the cell. These filaments help form cellular appendages like cilia and flagella, which are responsible for locomotion. The cilia arise from basal bodies, separated from the main body by a membrane-like structure forming the transition zone. This zone is the gate for the entry of lipids and proteins, creating a unique composition of lipids and proteins in the ciliary membrane and...
5.0K
Flagella and Motility in Bacteria01:18

Flagella and Motility in Bacteria

4.6K
Flagella are specialized, thread-like structures that extend from a bacteria's cell envelope. They play a crucial role in motility and chemotaxis. Their structural organization and functioning exemplify sophisticated biological engineering, enabling bacterial survival and adaptability in diverse environments.Structure of the FlagellumA bacterial flagellum consists of three key components: the filament, the hook, and basal body. The filament, a long, helical structure composed of repeating...
4.6K
Fimbriae, Pili, and Axial Filaments01:28

Fimbriae, Pili, and Axial Filaments

2.8K
Fimbriae and pili are specialized bacterial surface structures that play pivotal roles in adhesion, genetic exchange, and motility. Composed primarily of pilin protein, these hairlike appendages are crucial for bacterial survival and pathogenicity in various environments.Fimbriae: Adhesion and PathogenicityFimbriae are fine, filamentous structures measuring 2–10 nanometers in diameter and are densely distributed on the bacterial cell surface. They facilitate bacterial adhesion to abiotic...
2.8K

You might also read

Related Articles

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

Sort by
Same author

Screening and monitoring for presymptomatic type 1 diabetes: a time for action.

Hormone research in paediatrics·2026
Same author

CGM Accuracy in a Fragmented Regulatory Landscape: A Commentary on Harmonisation and Recent Evidence.

Diabetes, obesity & metabolism·2026
Same author

Automated Insulin Delivery Maintains Stable Glycemic Control Across Seasons: Real-World Data From Italy on 4801 Users.

Diabetes, obesity & metabolism·2026
Same author

Psychosocial implications, acceptability and ethics of screening for paediatric type 1 diabetes: a systematic review and mixed methods evidence synthesis.

Diabetologia·2026
Same author

Standing on the shoulders of microbes: microbiome thermal priming buffers the effects of heatwaves on clams by preventing stress overreaction.

ISME communications·2026
Same author

Deciphering the Hidden Ecology and Connectivity of Vibrio in the Oceans.

Nature communications·2026

Related Experiment Video

Updated: Mar 19, 2026

Measuring Sperm Guidance and Motility within the Caenorhabditis elegans Hermaphrodite Reproductive Tract
10:07

Measuring Sperm Guidance and Motility within the Caenorhabditis elegans Hermaphrodite Reproductive Tract

Published on: June 6, 2019

13.1K

From microbiome to sperm motility traits: an inside-out perspective.

Marco Graziano1, Gian Luigi Garbini2, Alessandro Devigili3

  • 1Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy.

Biology Letters
|March 17, 2026
PubMed
Summary

The skin microbiome

Keywords:
Poecilia reticulatafertilityhost-associated microbiomeshost–microbe interactionsreproductive microbiomeskin microbiomesperm motility traitssperm velocity

More Related Videos

Flow Cytometric Analysis of Biomarkers for Detecting Human Sperm Functional Defects
08:48

Flow Cytometric Analysis of Biomarkers for Detecting Human Sperm Functional Defects

Published on: April 21, 2022

3.5K
Author Spotlight: Advancing Male Infertility Research by Unraveling Sperm Metabolism and Mitochondrial Function
08:32

Author Spotlight: Advancing Male Infertility Research by Unraveling Sperm Metabolism and Mitochondrial Function

Published on: June 23, 2023

3.0K

Related Experiment Videos

Last Updated: Mar 19, 2026

Measuring Sperm Guidance and Motility within the Caenorhabditis elegans Hermaphrodite Reproductive Tract
10:07

Measuring Sperm Guidance and Motility within the Caenorhabditis elegans Hermaphrodite Reproductive Tract

Published on: June 6, 2019

13.1K
Flow Cytometric Analysis of Biomarkers for Detecting Human Sperm Functional Defects
08:48

Flow Cytometric Analysis of Biomarkers for Detecting Human Sperm Functional Defects

Published on: April 21, 2022

3.5K
Author Spotlight: Advancing Male Infertility Research by Unraveling Sperm Metabolism and Mitochondrial Function
08:32

Author Spotlight: Advancing Male Infertility Research by Unraveling Sperm Metabolism and Mitochondrial Function

Published on: June 23, 2023

3.0K

Area of Science:

  • Reproductive biology
  • Microbiome research
  • Animal ecology

Background:

  • Host-associated microbes significantly impact host physiology, ecology, and evolution.
  • The role of microbial communities in reproductive organs and their function remains largely unexplored.

Purpose of the Study:

  • To characterize skin and ejaculate-associated microbiomes in guppies (Poecilia reticulata).
  • To investigate correlations between microbial diversity, specific bacterial taxa, and sperm motility traits in guppies.

Main Methods:

  • Utilized guppies (Poecilia reticulata) as a model organism due to their established reproductive physiology.
  • Analyzed skin and ejaculate microbiomes.
  • Assessed sperm motility traits as predictors of reproductive success.

Main Results:

  • A correlation was found between skin microbiome diversity and sperm performance.
  • Increased skin microbiome richness was linked to reduced sperm velocity.
  • No significant associations were detected for ejaculate-associated microbiomes regarding sperm performance.

Conclusions:

  • The skin microbiome may act as an indicator of reproductive potential by reflecting systemic physiological states.
  • While the ejaculate microbiome's direct influence on sperm traits is possible, the skin microbiome offers insights into broader fertility-associated conditions.