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玄米 (Ocimum basilicum L.) 的生化和与生长相关的特征受到银纳米粒子和银纳米粒子的影响

Shahla Hashemi Shahraki¹, Tayebeh Ahmadi², Babak Jamali³

¹Department of Biology, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran. shahlahashemi15@science.usb.ac.ir.

BMC plant biology

|February 6, 2024

概括

银纳米颗粒和银酸盐会对玄米苗的生长和叶绿素产生负面影响,但会增加抗氧化化合物,如和酸盐. 植物显示银的吸收增加和氧化应激标志物.

科学领域:

植物科学植物科学
纳米技术纳米技术
环境科学环境科学

背景情况:

银纳米粒子 (AgNPs) 和酸银对玄米 (Ocimum basilicum L.) 幼苗的生物化学和生长效应的研究.
在两周内,幼苗暴露在不同度 (0,40,80 ppm) 的AgNPs和酸银中.

研究的目的:

评估AgNP和酸银对玄米幼苗生长和生物化学参数的影响.
了解这些银形式对植物生理学和氧化应激的剂量依赖作用.

主要方法:

玄米幼苗暴露于不同度的AgNP和酸银.
测量生长参数 (重量,根/芽长度),叶绿素含量和生物化学标记物 (,胡卜素,氨酸).
在植物组织中量化氧化应激指标 (MDA,H2O2) 和银的积累.

主要成果:

AgNPs和酸银降低了幼苗的重量,根/芽的长度和叶绿素a/b含量,分别为40和80ppm.
观察到总,胡卜素和酸盐的水平增加,AgNPs显示出更强的效果.
麦隆迪甲 (MDA) 和过氧化 (H2O2) 含量随着度的增加而增加,特别是与AgNPs,表明氧化应激升高. 在根和叶子中,银的积累是显著的.

结论:

银纳米颗粒和银酸盐治疗可以抑制玄米的生长,减少叶绿素,但可以刺激抗氧化化合物的产生.
虽然抗氧化物化合物增加了,但大理石植物无法完全抵消因银暴露而引起的氧化应激.
与酸银相比,AgNP对生化变化和氧化应激的影响更为明显.

关键词:

无生物应激应激是一种非生物应激.巴西里克 - 巴西里克.在H2O2中,H2O2是H2O的.银纳米颗粒银纳米粒子的总量的总量

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