Tomato Gene Switch Paves Way for Drought-Resilient Crops

As water scarcity becomes a growing threat to agriculture, scientists are searching for crop traits that help plants stay productive under drought. A new tomato study identifies the SlbHLH70 gene as a key regulator that strengthens drought tolerance and helps plants recover after rewatering. The research shows that tomatoes with higher SlbHLH70 activity survived drought better, while plants lacking the gene became more sensitive to water shortage. By linking drought resilience to abscisic acid (ABA) biosynthesis, ABA-mediated signaling, jasmonic acid (JA)-related responses, and root development, the study offers a clearer route for improving tomato adaptation to dry and unstable growing environments.