The red and blue light dialog of stomatal regulation for water-efficient crops
Elena A Pelech, Shellie A Wall, Mae Antonette G Mercado, Tanja A Hofmann, Mengjie Fan, Tracy Lawson · 2026
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Description
Pelech and co-authors review how plant pores respond to red and blue light. Their 2026 update covers stomata, the adjustable pores that balance carbon dioxide intake for photosynthesis against water loss. Two light pathways are known: a red light response tied to photosynthesis in leaf tissue, and a blue light response in the guard cells that saturates at low light levels.
Textbooks treat the pathways as independent, but the authors argue recent evidence shows they interact closely, with the blue light component depending on red light. The guard-cell blue response also varies between species rather than being universal, for reasons still unknown. Both guard cell and leaf tissue photosynthesis appear needed to activate the pump protein that opens stomata. The authors propose research directions aimed at crops that use water more efficiently without losing yield.
Catalog record
| CREATOR | Elena A Pelech, Shellie A Wall, Mae Antonette G Mercado, Tanja A Hofmann, Mengjie Fan, Tracy Lawson |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 47 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |