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

Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

41.4K
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.
41.4K
Osmoregulation in Insects01:47

Osmoregulation in Insects

17.4K
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
17.4K
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

28.2K
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.
28.2K
Cell Signaling in Plants01:25

Cell Signaling in Plants

6.1K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
6.1K
Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

4.5K
The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
4.5K
Gene Regulation During Sporulation01:17

Gene Regulation During Sporulation

402
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
402

You might also read

Related Articles

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

Sort by
Same author

Defective cuticle-derived signals enhance extracellular ATP response and plant immunity.

The New phytologist·2026
Same author

Genetic and metabolite diversity of Sundaland Heptapleurum (Araliaceae) insight into evolutionary and specialized metabolite.

BMC plant biology·2026
Same author

Natural variation in OsMYB305 downregulating cytokinin-mediated inhibition of leaf senescence contributes to regional adaptation in rice.

The New phytologist·2026
Same author

Rice ONAC005 inhibits precocious leaf senescence through a feed-forward regulatory loop involving OsNAP.

Plant physiology·2026
Same author

Author Correction: Allelic variation at a single locus distinguishes spring and winter faba beans.

Nature genetics·2026
Same author

Allelic variation at a single locus distinguishes spring and winter faba beans.

Nature genetics·2026

Related Experiment Video

Updated: Jan 8, 2026

Rapid Analysis of Circadian Phenotypes in Arabidopsis Protoplasts Transfected with a Luminescent Clock Reporter
07:42

Rapid Analysis of Circadian Phenotypes in Arabidopsis Protoplasts Transfected with a Luminescent Clock Reporter

Published on: September 17, 2016

13.3K

Rice OsMYB44 regulates Early heading date 1 expression for photoperiodic flowering.

Hyeryung Yoon1, Sang-Ji Lee1, Jinku Kang1

  • 1Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro Gwanak-gu, Seoul 08826, Republic of Korea.

Plant Physiology
|December 17, 2025
PubMed
Summary
This summary is machine-generated.

OsMYB44 regulates rice flowering time by interacting with key flowering genes like Hd1. Natural variations in OsMYB44 helped rice adapt to diverse latitudes during domestication.

More Related Videos

Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana
10:10

Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana

Published on: May 29, 2010

16.2K
Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer
11:33

Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer

Published on: October 14, 2022

2.0K

Related Experiment Videos

Last Updated: Jan 8, 2026

Rapid Analysis of Circadian Phenotypes in Arabidopsis Protoplasts Transfected with a Luminescent Clock Reporter
07:42

Rapid Analysis of Circadian Phenotypes in Arabidopsis Protoplasts Transfected with a Luminescent Clock Reporter

Published on: September 17, 2016

13.3K
Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana
10:10

Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana

Published on: May 29, 2010

16.2K
Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer
11:33

Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer

Published on: October 14, 2022

2.0K

Area of Science:

  • Plant Biology
  • Genetics
  • Molecular Biology

Background:

  • Photoperiod is a crucial environmental factor influencing plant flowering time.
  • Genetic variations in flowering regulators were vital for rice adaptation during domestication.

Purpose of the Study:

  • To investigate the role of the R2R3-type MYB protein OsMYB44 in rice photoperiodic flowering.
  • To elucidate the molecular mechanisms underlying OsMYB44's function in flowering time control.

Main Methods:

  • Gene overexpression and knockout mutant analysis in rice (Oryza sativa).
  • Protein-protein interaction studies (e.g., yeast two-hybrid or co-immunoprecipitation).
  • Analysis of OsMYB44 binding to target gene promoters (e.g., ChIP-qPCR).
  • Natural variation analysis and haplotype identification of OsMYB44.

Main Results:

  • OsMYB44 overexpression accelerated flowering under short days and delayed it under long days.
  • osmyb44 mutants exhibited delayed flowering under short-day conditions.
  • OsMYB44 interacts with Hd1, DTH8, and OsNF-YC2, participating in an NF-Y transcriptional complex.
  • OsMYB44 binds to promoter regions of Early heading date 1 (Ehd1) and activates its expression.
  • Four OsMYB44 haplotypes were identified, with variations potentially affecting Hd1 binding and flowering time.
  • Geographical distribution of haplotypes suggests a role in regional adaptation during rice domestication.

Conclusions:

  • OsMYB44 is a key regulator of photoperiodic flowering in rice.
  • OsMYB44 functions by interacting with Hd1 and other flowering-related proteins to modulate gene expression.
  • Natural variation in OsMYB44 contributed significantly to the adaptation of rice to different latitudes during its domestication.