Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Photoreceptors and Plant Responses to Light

Photoreceptors and Plant Responses to Light

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.

You might also read

Related Articles

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

Sort by

Same author

In vivo binding by <i>Arabidopsis</i> SPLICING FACTOR 1 shifts 3' splice-site choice, regulating circadian rhythms and immunity in plants.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same author

Evolution of molecular networks underlying plant tissue patterning: insights from conducting tissues.

Journal of experimental botany·2026

Same author

Conserved regulatory core and lineage-specific diversification of light-temperature integration in plants.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same author

TPR domain-containing co-chaperones of HSP70 and HSP90 in plants.

Journal of experimental botany·2026

Same author

Thermosensory reconfiguration of the auxin transcriptional pathway to drive root cell growth.

Nature communications·2026

Same author

AUXIN RESPONSE FACTOR thermostability.

Nature communications·2026

Same journal

In This Issue.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same journal

Correction for Otsuki et al., Extracellular sulfatases support cartilage homeostasis by regulating BMP and FGF signaling pathways.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same journal

Hive mind: Microbial communities and the making of memory.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same journal

Targets for disease modification in schizophrenia: New findings add to evidence for the involvement of the immune complement system.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same journal

Correction for Wang et al., The role of reduced aerosol masking from air pollutant emission reductions in recent global warming acceleration (2013-2023).

Proceedings of the National Academy of Sciences of the United States of America·2026

Same journal

Correction for Mishra, Ecology is not yet ready for AI-and why that matters.

Proceedings of the National Academy of Sciences of the United States of America·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 11, 2025

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ

Published on: May 8, 2020

Shade-induced ROS/NO reinforce COP1-mediated diffuse cell growth.

María José Iglesias^1,2, Cecilia Costigliolo Rojas^1,3, Luciana Bianchimano¹

¹Fundación Instituto Leloir, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Bioquímicas de Buenos Aires, Buenos Aires 1405, Argentina.

Proceedings of the National Academy of Sciences of the United States of America

|October 9, 2024

Summary

This summary is machine-generated.

Shade increases reactive oxygen species and nitric oxide, promoting hypocotyl growth in Arabidopsis. This redox regulation of CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1) is crucial for coordinated plant development.

Keywords:

S-nitrosylation auxin hypocotyl growth redox shade avoidance

More Related Videos

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

Observation of Photobehavior in Chlamydomonas reinhardtii

Observation of Photobehavior in Chlamydomonas reinhardtii

Published on: May 6, 2022

Related Experiment Videos

Last Updated: Jun 11, 2025

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ

Published on: May 8, 2020

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

Observation of Photobehavior in Chlamydomonas reinhardtii

Observation of Photobehavior in Chlamydomonas reinhardtii

Published on: May 6, 2022

Area of Science:

Plant Biology
Physiology
Molecular Biology

Background:

Canopy shade triggers PHYTOCHROME INTERACTING FACTORs (PIFs) to increase auxin, promoting hypocotyl elongation for light access.
The role of cellular redox status in shade-induced growth responses remains largely uncharacterized.

Purpose of the Study:

To investigate how shade affects cellular redox status and its impact on hypocotyl growth in Arabidopsis.
To elucidate the mechanism by which redox signaling regulates hypocotyl growth under shade conditions.

Main Methods:

Analysis of reactive oxygen species and nitric oxide accumulation in Arabidopsis hypocotyls under shade.
Biochemical assays to assess S-nitrosylation of CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1).
Proteasome degradation assays and protein-protein interaction studies involving COP1.

Main Results:

Shade induces nitroxidative stress in Arabidopsis hypocotyls, enhancing COP1-mediated growth promotion.
COP1 undergoes S-nitrosylation under shade, a redox modification critical for its stability and function.
Disruption of COP1 S-nitrosylation leads to increased proteasomal degradation, reduced interaction with targets, and impaired hypocotyl growth, causing asymmetric development.

Conclusions:

Redox signaling, specifically nitroxidative stress and COP1 S-nitrosylation, plays a vital role in regulating plant hypocotyl growth during shade avoidance.
This redox regulation ensures coordinated cellular growth, essential for effective competition among neighboring plants.