Principles and mechanisms of plant acclimation to heat stress.

Plants activate complex molecular and cellular mechanisms, including heat shock factors and biomolecular condensates, to acclimate to heat stress, enabling survival under rising temperatures.

• Why it matters: Understanding these responses is vital as climate change increases the frequency of extreme heat events, threatening crop productivity and food security worldwide.
• What they did: The review discusses how plants sense heat stress, signal transduction pathways, and transcriptional responses involving heat shock factors, with recent insights into biomolecular condensates and chromatin-based HS memory.
• The result: This knowledge advances potential strategies to enhance crop resilience to heat, helping secure yields amid global warming challenges.