Airborne PET nanoplastics alter tobacco's chemical risk

• 成果类型: Editorial Material
• 署名作者: Tan, Miao-Miao; Sun, Xiao-Dong; Wang, Ye; Duan, Jian-Lu; Ma, Jing-Ya; Liu, Xiao-Yu; Liu, Mei-Yan; Sun, Yu-Chen; Xing, Rong-Xiang; Wang, Shu-Guang; Chen, Wel; Yuan, Xian-Zheng
• 署名单位: Shandong University; Nankai University; Shandong University
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-8424; 1091-6490
• DOI: 10.1073/pnas.2519054122
• 发表日期: 2025-12-23
• 页码: e2519054122
• 关键词: foliar nanoplastic exposure; Nicotiana benthamiana; chirality of nicotine

摘要

Atmospheric micro(nano)plastics (MNPs), including polyethylene terephthalate (PET), enter plants via leaves, accumulating in tissues. Foliar PET nanoplastic exposure alters Nicotiana benthamiana nicotine biosynthesis, favoring the more potent (S)-isomer even without growth inhibition. This accumulation reveals a contamination pathway for combustible consumer products, demonstrating that MNPs-induced alteration of a plant's endogenous biochemistry represents a significant and previously uncharacterized risk to agricultural sustainability and human health.