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聚乙烯纳米塑料影响了西红 (Solanum lycopersicum L.) 的形态,生理和分子指数

Masoumeh Nazari¹, Alireza Iranbakhsh¹, Mostafa Ebadi²

¹Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.

Plant physiology and biochemistry : PPB

|January 19, 2025

概括

土壤中的聚乙烯纳米塑料 (PENP) 伤害番茄植物,导致生长减缓,发育延迟和果实质量改变. 这项研究强调了PENP对农业和粮食安全的风险.

科学领域:

环境科学环境科学
植物生物学植物生物学
毒理学毒理学毒理学

背景情况:

纳米塑料等新兴污染物的土壤污染对农业生态系统构成风险.
了解植物对聚乙烯纳米塑料 (PENP) 的反应对于评估环境和粮食安全影响至关重要.

研究的目的:

研究PENP对番茄植物 (Solanum lycopersicum) 的形态,生理,分子和表观遗传影响.
评估不同度PENP对植物发育,应激反应和水果特性的影响.

主要方法:

番茄被暴露在不同的PENP土壤度 (0.01,0.1,1 gkg-1).
评估了植物形态发生,生物量,开花/成熟时间,氧化应激标志物 (H2O2),酶活性 (酶,过氧化酶,PAL),光合作用参数,基因表达 (HDA3,R2R3MYB,AP2a),DNA甲基化和水果质量.

主要成果:

暴露于PENP显著减少了植物生物质,内部节长,并延迟了开花和果实成熟.
观察到氧化应激 (H2O2) 的增加,酶活动的改变以及光合作用效率的降低.
PENP诱导了基因表达的变化 (HDA3,R2R3MYB上调;AP2a下调),DNA甲基化,以及增加的普罗林,和黄.
长期暴露于PENP会影响水果生物质,坚硬度,酸盐,烯和黄酸盐含量.

结论:

PENP污染严重影响番茄植物的发育和生理学,表明严重的压力和功能障碍.
表观遗传修饰和改变基因表达是番茄PENP暴露的关键反应.
这些发现强调了PENP对农业生产率和粮食安全的潜在危害.

关键词:

细胞毒性细胞毒性通过DNA甲基化.表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.纳米塑料是一种纳米塑料.植物毒性植物毒性

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