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Figure: Arabidopsis cells (top) and seedlings (bottom) under different light and temperature conditions
Image credit: Salk Institute
Plants will stretch and bend to ensure sunlight
background
Plants have evolved unique flexibility to regulate their growth in response to environmental changes
Research Highlights
In this study, the authors simulated high-density planting and climate change in crops, comparing plants grown in both shade and heat
In the Arabidopsis model, responses to shade and heat are sensed and executed by the same factor, phytochrome B (phyB) photoreceptors
In addition to Arabidopsis, tomato and tobacco were studied, all three plants were found to be affected by the same environmental conditions
"We've always grown crops at high densities, but our findings suggest that with climate change, we need to reduce densities to optimize growth," said senior author Professor Chory, who is a member of the Salk Plant Molecular and Cell Biology Laboratory Director and a Howard Hughes Medical Institute Investigator
"We were surprised to find that PIF4 did not play a major role, as previous studies have shown the importance of this factor in relevant growth situations," said first author Yogev Burko
