Sulfur Gas Signal Boosts Tomato Heat Tolerance, Study Finds

As global temperatures climb and food security grows more precarious, scientists at Zhejiang A&F University have uncovered a quiet molecular conductor within the tomato plant itself — a sulfur gas called hydrogen sulfide that, when summoned by heat, orchestrates the plant's entire survival response. The discovery, rooted in the activation of a single gene called SlLCD1, reveals that nature has already engineered a sophisticated defense against thermal stress, one that coordinates water retention, antioxidant protection, and photosynthesis simultaneously rather than sacrificing one for another.