AUTHOR=An Wangwang , Wang Guangzheng , Dou Jianhua , Zhang Yonghai , Yang Qing , He Yongmei , Tang Zhongqi , Yu Jihua TITLE=Protective mechanisms of exogenous melatonin on chlorophyll metabolism and photosynthesis in tomato seedlings under heat stress JOURNAL=Frontiers in Plant Science VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2025.1519950 DOI=10.3389/fpls.2025.1519950 ISSN=1664-462X