利用绿色硅纳米粒子缓解番茄植物的铬胁迫:加强细胞氧化应激管理和铬的减少

IF 3.9 2区 农林科学 Q1 HORTICULTURE Scientia Horticulturae Pub Date : 2024-09-14 DOI:10.1016/j.scienta.2024.113635
Muhammad Mohsin Altaf , Han Yi , Sadia Bashir , Sumra Siddique Abbasi , Muhammad Anwar , Abdulaziz Abdullah Alsahli , Muhammad Ahsan Altaf , Parvaiz Ahmad
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引用次数: 0

摘要

纳米方法已成为解决重金属(HMs)污染和提高作物产量的可行选择。本研究探讨了绿色硅纳米粒子(SiNPs)如何减轻铬(Cr)对番茄的毒性。研究人员利用青蒿叶提取物合成了尺寸为 8-40 nm 的球形绿色硅纳米粒子,并采用现代表征方法对其进行了表征。温室实验结果表明,SiNPs 剂量为 150 毫克/千克时,番茄植株的生物量和根系结构得到了令人惊讶的改善。补充 SiNPs 还能积极提高受铬胁迫植物的光合色素和叶片气体交换属性。此外,SiNPs150 毫克/千克还能提高抗氧化酶的活性,从而清除 ROS 并减少铬引起的氧化破坏。此外,qPCR 分析表明,在铬胁迫下施用 SiNPs 会上调抗氧化防御相关基因。透射电子显微镜分析表明,施用 SiNPs 能有效缓解 Cr 对叶片超微结构的破坏,并对植物体内的 Cr 和 Si 积累产生重大影响。总之,利用绿色 SiNPs 作为纳米肥料作为一种农业策略,对缓解 HMs 胁迫的不利影响、保障食品安全和未来农业的可持续发展具有巨大潜力。
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Mitigating chromium stress in tomato plants using green-silicone nanoparticles: Enhancing cellular oxidative stress management and chromium reduction

Nano-enabled approach has become the promising option for resolving heavy metal (HMs) contamination and improving the crop production. Here, current study explored mechanism involved in how green silicon nanoparticles (SiNPs) alleviating the chromium (Cr) induced toxicity in tomato. Green SiNPs in spherical shape with size 8–40 nm were synthesized with artemisia annua leaves extract and characterization performed by modern characterization method. The results of the green house experiment demonstrated that SiNPs at dose of 150 mg kg−1 surprisingly improved the biomass and root architecture of tomato plants. SiNPs supplementation also positively enhanced the photosynthesis pigments and leaf gas exchange attributes of Cr-stressed plants. Besides this, SiNPs150 mg kg−1 elevated antioxidant enzymes activities which scavenging ROS and reduced Cr-caused oxidative destruction. Furthermore, qPCR assay showed upregulation of the antioxidant defense related genes with the application of SiNPs under Cr stress. Transmission Electron Microscopy analysis showed that SiNPs application effectively alleviated Cr-induced damage to leaf ultrastructure and had a substantial impact on Cr and Si accumulation in plants. In conclusion, the utilization of green SiNPs as nano-fertilizers exhibits great potential as a strategy for agriculture to alleviate the adverse effects of HMs stress, safeguard food safety, and sustainable agriculture in the future.

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来源期刊
Scientia Horticulturae
Scientia Horticulturae 农林科学-园艺
CiteScore
8.60
自引率
4.70%
发文量
796
审稿时长
47 days
期刊介绍: Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.
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