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

Phloem and Sugar Transport02:02

Phloem and Sugar Transport

35.1K
Like many living organisms, plants have tissues that specialize in specific plant functions. For example, shoots are well adapted to rapid growth, while roots are structured to acquire resources efficiently. However, sugar production is primarily restricted to the photosynthetic cells that reside in the leaves of angiosperm plants. Sugar and other resources are transported from photosynthetic tissues to other specialized tissues by a process called translocation.
35.1K
Primary and Secondary Growth in Roots and Shoots03:02

Primary and Secondary Growth in Roots and Shoots

55.3K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
55.3K
Cell Signaling in Plants01:25

Cell Signaling in Plants

5.6K
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...
5.6K
Short-distance Transport of Resources02:12

Short-distance Transport of Resources

15.6K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
15.6K
Responses to Gravity and Touch02:26

Responses to Gravity and Touch

34.5K
Gravitropism: Plant Responses to Gravity
34.5K
Meristems and Plant Growth02:36

Meristems and Plant Growth

44.0K
Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
44.0K

You might also read

Related Articles

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

Sort by
Same author

The Contribution of Phloem Metabolism to Leaf Respiration: New Insights Into an Old Problem.

Plant, cell & environment·2026
Same author

Decoding the sugar-strigolactone crosstalk: new frontier in plant growth and stress resilience.

Horticulture research·2026
Same author

Experimental Evidence for Photosynthetic Dependency of Phloem Sap Generation in Minor Veins.

Plant, cell & environment·2025
Same author

Cytokinin-induced bud outgrowth depends on sugar metabolism and signalling.

Journal of experimental botany·2025
Same author

Divergent Mechanisms of Internode Elongation in Response to Far-Red in Two Rose Genotypes.

Plants (Basel, Switzerland)·2025
Same author

Association between venous leg ulcers and knee osteoarthritis: A Mendelian randomization study.

Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society·2024

Related Experiment Video

Updated: Jun 4, 2025

Shootward Movement of CFDA Tracer Loaded in the Bottom Sink Tissues of Arabidopsis
07:00

Shootward Movement of CFDA Tracer Loaded in the Bottom Sink Tissues of Arabidopsis

Published on: May 11, 2019

6.7K

Sugar Transport and Signaling in Shoot Branching.

Joan Doidy1, Yuhui Wang2,3, Léo Gouaille2

  • 1EBI Ecologie et Biologie des Interactions, Université de Poitiers, UMR CNRS 7267, 86073 Poitiers, France.

International Journal of Molecular Sciences
|December 17, 2024
PubMed
Summary

Plant branching relies on sugar supply to buds. Activating dormant buds involves increased sugar metabolism and apoplasmic unloading, crucial for plant architecture.

Keywords:
SUTsSWEETsapoplasmic and symplasmic unloading pathwaysaxillary budshoot branchingsugar transport and signaling

More Related Videos

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions
11:27

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

Published on: August 25, 2018

10.5K
An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings
04:32

An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings

Published on: February 15, 2019

5.8K

Related Experiment Videos

Last Updated: Jun 4, 2025

Shootward Movement of CFDA Tracer Loaded in the Bottom Sink Tissues of Arabidopsis
07:00

Shootward Movement of CFDA Tracer Loaded in the Bottom Sink Tissues of Arabidopsis

Published on: May 11, 2019

6.7K
A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions
11:27

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

Published on: August 25, 2018

10.5K
An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings
04:32

An Induction System for Clustered Stomata by Sugar Solution Immersion Treatment in Arabidopsis thaliana Seedlings

Published on: February 15, 2019

5.8K

Area of Science:

  • Plant Biology
  • Physiology
  • Developmental Biology

Background:

  • Plant architecture and branching are determined by axillary bud activity.
  • Bud outgrowth is regulated by sink strength, influencing photoassimilate unloading and metabolism.
  • Understanding sugar unloading mechanisms in buds is vital for plant development.

Purpose of the Study:

  • To investigate the role of sugar unloading in the transition of plant axillary buds from dormancy to active outgrowth.
  • To identify key molecular markers and metabolic pathways involved in establishing bud sink strength.
  • To explore sugar as a systemic regulator of shoot branching.

Main Methods:

  • Analysis of sugar transporters (SUTs, SWEETs) and sucrose hydrolyzing enzymes (CWINV).
  • Assessment of sugar metabolic pathways including glycolysis, TCA, and OPPP.
  • Review of existing literature and data on bud sink strength regulation.

Main Results:

  • Bud activation requires sugar, preceded by increased metabolic activity and starch remobilization.
  • Apoplasmic unloading markers, including sugar transporters and invertases, are upregulated during bud outgrowth.
  • Sugar acts as both an energy source and signaling molecule in regulating bud sink strength.

Conclusions:

  • Sugar is a critical systemic regulator of shoot branching, influencing bud sink strength.
  • Apoplasmic sugar unloading pathways are significantly involved in bud activation.
  • Further studies across diverse plant species are needed to fully elucidate sugar unloading mechanisms in buds.