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Green light alone sustains the complete soybean life cycle
Zhen Li1, Zichen Guo1, Gengxue Wu2
1College of Life Sciences, Henan Agricultural University, Zhengzhou 450002, China.
Journal of Photochemistry and Photobiology. B, Biology
|February 7, 2026
Summary
Green light alone can fully support soybean growth, influencing plant development and photosynthesis. This study reveals green light
Area of Science:
- Plant Biology
- Photomorphogenesis
- Molecular Biology
Background:
- Green light comprises a significant portion of the light spectrum.
- Its role in plant development is not fully understood compared to other light spectra.
Purpose of the Study:
- To investigate the effects of green light on soybean (Glycine max) morphogenesis.
- To determine if green light is sufficient for the entire soybean life cycle.
Main Methods:
- Physiological analyses
- Transcriptomic analyses (RNA sequencing)
- Cytological analyses
Main Results:
- Green light alone sustains complete soybean life cycle.
- Soybeans under green light showed chlorophyll/carotenoid synthesis, expanded cotyledons, and shortened hypocotyls.
- Transcriptomic analysis revealed 1159 differentially expressed genes (DEGs) involved in signal transduction, photosynthesis, and hormone signaling, with suppressed auxin-related genes.
Conclusions:
- Green light functions as both an energy source and a developmental signal in soybeans.
- Green light influences soybean anatomy and gene expression, particularly auxin pathways.
- Findings provide insights into green light-responsive genes and photomorphogenesis.
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