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

Light Acquisition02:16

Light Acquisition

9.8K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
9.8K
Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

41.9K
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
41.9K
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

28.9K
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.
28.9K
Regulation of Transpiration by Stomata02:04

Regulation of Transpiration by Stomata

32.0K
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
32.0K

You might also read

Related Articles

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

Sort by
Same author

Durum Wheat cv. Svevo Reference Genome Rel.2.0: A Comprehensive Tool for Wheat Genomics.

Plant biotechnology journal·2026
Same author

Genetic dissection of root traits in barley identifies major QTLs and domestication signature.

Plant cell reports·2026
Same author

Regulatory structural variation upstream of a NAC transcription factor controls fruit maturity timing in peach.

Journal of experimental botany·2026
Same author

Golden Promise-rapid, a fast-cycling and transformable barley genotype.

Journal of experimental botany·2026
Same author

A chromosome-scale genome assembly of Hordeum erectifolium: genomic, transcriptomic and anatomical adaptations to drought in a wild barley relative.

The New phytologist·2026
Same author

FLOWERING LOCUS T1 is a pleiotropic regulator of reproductive development, longevity, and source-sink relations in barley.

Plant physiology·2026

Related Experiment Video

Updated: Mar 17, 2026

LeafJ: An ImageJ Plugin for Semi-automated Leaf Shape Measurement
08:14

LeafJ: An ImageJ Plugin for Semi-automated Leaf Shape Measurement

Published on: January 21, 2013

29.5K

Photoperiod-H1 (Ppd-H1) Controls Leaf Size.

Benedikt Digel1, Elahe Tavakol1, Gabriele Verderio1

  • 1Max Planck Institute for Plant Breeding Research, D-50829 Cologne, Germany (B.D., M.v.K.);Institute of Plant Genetics, Heinrich-Heine-University, 40225 Duesseldorf, Germany (B.D., M.v.K.);Cluster of Excellence on Plant Sciences "From Complex Traits Towards Synthetic Modules," 40225 Duesseldorf, Germany (B.D., M.v.K.);Università degli Studi di Milano-DiSAA, 20133 Milan, Italy (E.T., G.V., L.R.);Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, 7144165186 Shiraz, Iran (E.T.);Council for Agricultural Research and Economics, Genomics Research Centre, 29017 Fiorenzuola d'Arda, Italy (A.T., L.C.);Hubei Provincial Key Laboratory for Protection and Application of Special Plants in Wu Ling Area of China, Key Laboratory of State Ethnic Affairs Commission for Biologica Technology, College of Life Science, South-Central University for Nationalities, Wuhan 430074, China (X.X.); andParco Tecnologico Padano, Loc. Cascina Codazza, 26900 Lodi, Italy (L.R.).

Plant Physiology
|July 27, 2016
PubMed
Summary

Barley leaf size, crucial for photosynthesis, is genetically controlled by PHOTOPERIOD-H1 (Ppd-H1). This gene influences leaf development duration and cell number, impacting plant biomass and reproductive strategy.

More Related Videos

Analysis of Arabidopsis thaliana Growth Behavior in Different Light Qualities
05:34

Analysis of Arabidopsis thaliana Growth Behavior in Different Light Qualities

Published on: February 2, 2018

20.2K
Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus
07:08

Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus

Published on: January 30, 2020

6.5K

Related Experiment Videos

Last Updated: Mar 17, 2026

LeafJ: An ImageJ Plugin for Semi-automated Leaf Shape Measurement
08:14

LeafJ: An ImageJ Plugin for Semi-automated Leaf Shape Measurement

Published on: January 21, 2013

29.5K
Analysis of Arabidopsis thaliana Growth Behavior in Different Light Qualities
05:34

Analysis of Arabidopsis thaliana Growth Behavior in Different Light Qualities

Published on: February 2, 2018

20.2K
Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus
07:08

Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus

Published on: January 30, 2020

6.5K

Area of Science:

  • Plant genetics and genomics
  • Crop science
  • Molecular biology

Background:

  • Leaf size significantly impacts plant photosynthetic capacity and biomass accumulation.
  • Genetic control of leaf size in cereal crops, particularly barley (Hordeum vulgare), remains largely unexplored.
  • Understanding these genetic mechanisms is vital for crop improvement.

Purpose of the Study:

  • To identify genetic factors controlling leaf size in barley.
  • To investigate the relationship between flowering time and leaf size genetics.
  • To elucidate the molecular mechanisms underlying leaf size variation in barley.

Main Methods:

  • Genome-wide association scan (GWAS) in a diverse panel of European winter barley cultivars.
  • Genotyping using a single-nucleotide polymorphism (SNP) array.
  • Microscopic phenotyping of introgression lines.
  • Analysis of gene expression for BARLEY MADS BOX genes.

Main Results:

  • PHOTOPERIOD-H1 (Ppd-H1) was identified as a major quantitative trait locus (QTL) influencing both flowering time and leaf size.
  • Ppd-H1 significantly affects leaf size through modulation of leaf growth duration and cell number.
  • Ppd-H1-dependent regulation of BM3 and BM8 genes correlates with reduced leaf size and number.

Conclusions:

  • Leaf size in barley is under photoperiod-dependent control mediated by Ppd-H1.
  • The Ppd-H1 gene integrates developmental progression with leaf growth, influencing plant architecture.
  • Coordination of leaf development with flowering time represents a reproductive strategy for optimizing resource allocation.