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

UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

6.9K
Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent...
6.9K
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

1.8K
The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
1.8K
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

20.2K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
20.2K
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

5.9K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
5.9K

You might also read

Related Articles

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

Sort by
Same author

Chromosome-level genome assembly of the sponge Halisarca dujardinii.

Scientific data·2026
Same author

Sterol Composition in the Lichens <i>Lobaria pulmonaria</i> and <i>Lobaria retigera</i>: Does Photobiont Matter?

International journal of molecular sciences·2025
Same author

Prospective and retrospective awareness of moment-to-moment fluctuations in visual working memory performance.

Journal of experimental psychology. General·2025
Same author

Morphological and Transcriptomic Analyses of the Adrenal Gland in <i>Acomys cahirinus</i>: A Novel Model for Murine Adrenal Physiology.

Cells·2025
Same author

Invasive fungal infections caused by rare yeast-like fungi in adult patients: results of a prospective study.

Current medical mycology·2025
Same author

Morphology and physicochemical properties of melanin particles from the lichen <i>Lobaria pulmonaria</i>.

Mycologia·2025

Related Experiment Video

Updated: Jun 14, 2025

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
12:37

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Published on: September 7, 2013

18.2K

Ultraviolet-induced melanisation in lichens: physiological traits and transcriptome profile.

Ilya Leksin1, Mikhail Shelyakin2, Ilya Zakhozhiy2

  • 1Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, Russian Federation.

Physiologia Plantarum
|September 2, 2024
PubMed
Summary

Lichens, sensitive to ultraviolet-B (UV-B) radiation, activate gene networks for tolerance. The fungal partner (mycobiont) shows higher UV-B responsiveness, impacting lichen biodiversity.

More Related Videos

Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings
08:33

Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings

Published on: February 26, 2016

11.5K
Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids
11:28

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids

Published on: August 28, 2018

7.8K

Related Experiment Videos

Last Updated: Jun 14, 2025

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
12:37

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Published on: September 7, 2013

18.2K
Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings
08:33

Determination of Photoreceptor Cell Spectral Sensitivity in an Insect Model from In Vivo Intracellular Recordings

Published on: February 26, 2016

11.5K
Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids
11:28

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids

Published on: August 28, 2018

7.8K

Area of Science:

  • Ecology
  • Molecular Biology
  • Environmental Science

Background:

  • Lichens are crucial in high-latitude ecosystems and highly sensitive to climate change, especially increased ultraviolet (UV) radiation.
  • Polar ozone depletion and deforestation contribute to rising UV levels, posing a threat to lichen biodiversity.

Purpose of the Study:

  • To investigate the effects of UV-B radiation on gene expression in lichens.
  • To identify metabolic pathways involved in lichen tolerance to UV-B stress.
  • To assess the differential response of lichen symbionts to UV-B.

Main Methods:

  • Transcriptome profiling was employed to analyze gene expression changes in response to UV-B exposure.
  • Bioinformatic analyses were used to interpret gene expression data and predict metabolic pathways.
  • Lobaria pulmonaria (L.) Hoff. served as the model species for the study.

Main Results:

  • UV-B exposure induced browning in the lichen thallus and increased expression of genes related to melanin synthesis.
  • Melanin biosynthesis and other secondary metabolite production appear to be a trade-off for protecting photosynthesis and respiration.
  • Genes associated with reactive oxygen species scavenging, protein protection, and DNA repair were upregulated, with the mycobiont showing greater responsiveness.

Conclusions:

  • UV-B stress triggers a complex gene network in lichens, primarily involving melanin production and general stress responses.
  • The fungal partner (mycobiont) is more susceptible to UV-B than the algal partner.
  • Understanding these mechanisms is vital for predicting the impact of climate change and pollution on lichen biodiversity.