Melatonin Increases Drought Resistance by Regulating Wheat Root Morphology
July 2023
in “
Agronomy
”
New to Melatonin? There is a guide in the encyclopedia. Read the guide → 
Studysummary This study found that treating wheat with 100 µM melatonin under drought conditions significantly improved root and shoot growth, increased melatonin levels, and enhanced drought resistance, potentially clarifying the mechanisms of melatonin's protective effects in plants facing water scarcity.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
The study by Zhihui Zhang et al. found that melatonin significantly improves the drought resistance of wheat plants by regulating their root and root hair morphology. The research used a RhizoPot to observe the effects of melatonin treatment under drought conditions. The results showed that melatonin increased root length, surface area, volume, and average diameter, and also improved the lifespan and survival percentage of fine root, lateral root, and root hair. Additionally, melatonin alleviated the inhibitory effect of drought on shoot morphology, including plant height, dry weight, net photosynthesis, and stomatal aperture of leaves. The study suggests that melatonin could be used to enhance the drought resistance of wheat plants, but further research is needed to understand the detailed mechanism of this regulation.
