Mitigating cadmium stress in Phaseolus vulgaris through nano silica-induced growth and cadmium uptake.

IF 3.1 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Phytoremediation Pub Date : 2025-09-17 DOI:10.1080/15226514.2025.2560535

Xin Jin, Wen Tang, Kai Yan, Fangyi Dai, Yongdong Xie, Zihan Pan, Huanxiu Li, Huashan Lian, Yi Tang

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Abstract

Cadmium (Cd) is a highly toxic heavy metal element widely in the natural environment. To investigate the effect of nano silica (SiO₂ NPs) on the cadmium (Cd) accumulation in Phaseolus vulgaris, SiO₂ NPs (100 and 200 mg/L) was sprayed on the leaves of P. vulgaris, and the growth and Cd accumulation under Cd stress were assessed. SiO₂ NPs increased the biomass, photosynthetic pigment content, peroxidase (POD) activity, and Cd content of P. vulgaris under Cd stress. Compared to Cd treatment, the concentration of 200 mg/L SiO₂ NPs increased the Cd contents in roots and shoots of P. vulgaris by 4.97% and 13.34%, respectively. Furthermore, correlation, principal component, and cluster analyses revealed that the shoot Cd content had the closest relationship with the photosynthetic pigment content and root and shoot biomass. Therefore, SiO₂ NPs can mitigate Cd stress, promote the growth, and increase Cd accumulation of P. vulgaris, which is not suitable for the production of P. vulgaris in Cd contaminated areas.

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纳米二氧化硅诱导菜豆生长和镉吸收缓解镉胁迫。

镉是一种广泛存在于自然环境中的剧毒重金属元素。为了研究纳米二氧化硅（SiO2 NPs）对普通菜豆（Phaseolus vulgaris）镉积累的影响，采用100和200 mg/L的SiO2 NPs喷施在普通菜豆（Phaseolus vulgaris）叶片上，评价Cd胁迫下普通菜豆的生长和镉积累。在Cd胁迫下，SiO2 NPs提高了黄颡鱼生物量、光合色素含量、过氧化物酶（POD）活性和Cd含量。与Cd处理相比，200 mg/L SiO2 NPs处理使白杨根和芽中Cd含量分别提高4.97%和13.34%。相关分析、主成分分析和聚类分析表明，地上部Cd含量与光合色素含量和根、地上部生物量的关系最为密切。因此，SiO2 NPs可以缓解Cd胁迫，促进白杨生长，增加Cd积累，不适合Cd污染地区的白杨生产。

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来源期刊

International Journal of Phytoremediation 环境科学-环境科学

CiteScore

7.60

自引率

5.40%

发文量

145

审稿时长

3.4 months

期刊介绍： The International Journal of Phytoremediation (IJP) is the first journal devoted to the publication of laboratory and field research describing the use of plant systems to solve environmental problems by enabling the remediation of soil, water, and air quality and by restoring ecosystem services in managed landscapes. Traditional phytoremediation has largely focused on soil and groundwater clean-up of hazardous contaminants. Phytotechnology expands this umbrella to include many of the natural resource management challenges we face in cities, on farms, and other landscapes more integrated with daily public activities. Wetlands that treat wastewater, rain gardens that treat stormwater, poplar tree plantings that contain pollutants, urban tree canopies that treat air pollution, and specialized plants that treat decommissioned mine sites are just a few examples of phytotechnologies.