Related Experiment Video
Updated: Feb 9, 2026

Fluorescence Time-lapse Imaging of the Complete S. venezuelae Life Cycle Using a Microfluidic Device
Published on: February 28, 2016
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.
Abstract:
Green light has a high proportion and plays a crucial yet poorly understood role in plant compared to other light spectra. This study investigated the effects of green light on soybean morphogenesis using physiological, transcriptomic, and cytological analyses, discovering that green light alone is sufficient to sustain the complete soybean life cycle. Under green light, soybeans synthesized chlorophyll and carotenoids, developed expanded cotyledons, and exhibited shortened hypocotyls. Anatomical changes included horizontal hypocotyl growth, uniform palisade tissue distribution, and reduced spongy mesophyll. Transcriptomic analysis identified 1159 differentially expressed genes (DEGs), with 876 upregulated and 283 downregulated, implicating green light in signal transduction, photosynthesis, chloroplast function, hormone signaling, and metabolism. Key genes such as GmELIP1a/b, GmPsbS, GmPSY, GmAHA11, and GmUDPG were induced, while auxin-related genes (GmIAA13, GmARF8, GmAUX1) were suppressed, corroborating reduced auxin levels in apical tissues. These findings demonstrate that green light acts as both an energy source and a developmental signal, advancing our understanding of its role in photomorphogenesis and providing insights for future research on green light-responsive genes.
Related Concept Videos
The Angiosperm Life Cycle
Retrovirus Life Cycles
Sustainable Development
Half-life of a Reaction
Characteristics of Life
Design Example: Sustainability in Concrete Building
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...

