Suppr超能文献

铁改性生物炭改善小麦(L.)的植物生理、土壤营养状况并减轻铅和镉危害。

Iron-modified biochar improves plant physiology, soil nutritional status and mitigates Pb and Cd-hazard in wheat ( L.).

作者信息

Algethami Jari S, Irshad Muhammad Kashif, Javed Wasim, Alhamami Mohsen A M, Ibrahim Muhammad

机构信息

Department of Chemistry, College of Science and Arts, Najran University, Najran, Saudi Arabia.

Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, Saudi Arabia.

出版信息

Front Plant Sci. 2023 Aug 17;14:1221434. doi: 10.3389/fpls.2023.1221434. eCollection 2023.

Abstract

Environmental quality and food safety is threatened by contamination of lead (Pb) and cadmium (Cd) heavy metals in agricultural soils. Therefore, it is necessary to develop effective techniques for remediation of such soils. In this study, we prepared iron-modified biochar (Fe-BC) which combines the unique characteristics of pristine biochar (BC) and iron. The current study investigated the effect of pristine and iron modified biochar (Fe-BC) on the nutritional values of soil and on the reduction of Pb and Cd toxicity in wheat plants ( L.). The findings of present study exhibited that 2% Fe-BC treatments significantly increased the dry weights of roots, shoots, husk and grains by 148.2, 53.2, 64.2 and 148%, respectively compared to control plants. The 2% Fe-BC treatment also enhanced photosynthesis rate, transpiration rate, stomatal conductance, intercellular CO, chlorophyll a and b contents, by 43.2, 88.4, 24.9, 32.5, 21.4, and 26.7%, respectively. Moreover, 2% Fe-BC treatment suppressed the oxidative stress in wheat plants by increasing superoxide dismutase (SOD) and catalase (CAT) by 62.4 and 69.2%, respectively. The results showed that 2% Fe-BC treatment significantly lowered Cd levels in wheat roots, shoots, husk, and grains by 23.7, 44.5, 33.2, and 76.3%. Whereas, Pb concentrations in wheat roots, shoots, husk, and grains decreased by 46.4, 49.4, 53.6, and 68.3%, respectively. Post-harvest soil analysis showed that soil treatment with 2% Fe-BC increased soil urease, CAT and acid phosphatase enzyme activities by 48.4, 74.4 and 117.3%, respectively. Similarly, 2% Fe-BC treatment significantly improved nutrients availability in the soil as the available N, P, K, and Fe contents increased by 22, 25, 7.3, and 13.3%, respectively. Fe-BC is a viable solution for the remediation of hazardous Cd and Pb contaminated soils, and improvement of soil fertility status.

摘要

农业土壤中铅(Pb)和镉(Cd)重金属污染威胁着环境质量和食品安全。因此,有必要开发有效的土壤修复技术。在本研究中,我们制备了铁改性生物炭(Fe-BC),它结合了原始生物炭(BC)和铁的独特特性。本研究调查了原始生物炭和铁改性生物炭(Fe-BC)对土壤营养价值以及对小麦植株(L.)中铅和镉毒性降低的影响。本研究结果表明,与对照植株相比,2% Fe-BC处理使根、茎、壳和籽粒的干重分别显著增加了148.2%、53.2%、64.2%和148%。2% Fe-BC处理还分别使光合速率、蒸腾速率、气孔导度、胞间CO、叶绿素a和b含量提高了43.2%、88.4%、24.9%、32.5%、21.4%和26.7%。此外,2% Fe-BC处理通过分别使超氧化物歧化酶(SOD)和过氧化氢酶(CAT)增加62.4%和69.2%,抑制了小麦植株的氧化应激。结果表明,2% Fe-BC处理使小麦根、茎、壳和籽粒中的镉含量分别显著降低了23.7%、44.5%、33.2%和76.3%。而小麦根、茎、壳和籽粒中的铅浓度分别降低了46.4%、49.4%、53.6%和68.3%。收获后土壤分析表明,用2% Fe-BC处理土壤使土壤脲酶、CAT和酸性磷酸酶活性分别提高了48.4%、74.4%和117.3%。同样,2% Fe-BC处理显著提高了土壤中养分的有效性,有效氮、磷、钾和铁含量分别增加了22%、25%、7.3%和13.3%。Fe-BC是修复受镉和铅污染的危险土壤以及改善土壤肥力状况的可行解决方案。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f731/10470012/b9a353e945e9/fpls-14-1221434-g001.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验