| Comparative physiological and metabolomic analyses reveal that Fe3O4 and ZnO nanoparticles alleviate Cd toxicity in tobacco | |
Zou, Congming; Lu, Tianquan1,3,4; Wang, Ruting; Xu, Peng1,3; Jing, Yifen1,3; Wang, Ruling1,3; Xu, Jin2 ; Wan, Jinpeng1,3
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| 2022 | |
| Source Publication | JOURNAL OF NANOBIOTECHNOLOGY
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| ISSN | 1477-3155 |
| Volume | 20Issue:1Pages:- |
| Abstract | Background: Heavy metals repress tobacco growth and quality, and engineered nanomaterials have been used for sustainable agriculture. However, the underlying mechanism of nanoparticle-mediated cadmium (Cd) toxicity in tobacco remains elusive. Results: Herein, we investigated the effects of Fe3O4 and ZnO nanoparticles (NPs) on Cd stress in tobacco cultivar 'Yunyan 87' (Nicotiana tabacum). Cd severely repressed tobacco growth, whereas foliar spraying with Fe3O4 and ZnO NPs promoted plant growth, as indicated by enhancing plant height, root length, shoot and root fresh weight under Cd toxicity. Moreover, Fe3O4 and ZnO NPs increased, including Zn, K and Mn contents, in the roots and/or leaves and facilitated seedling growth under Cd stress. Metabolomics analysis showed that 150 and 76 metabolites were differentially accumulated in roots and leaves under Cd stress, respectively. These metabolites were significantly enriched in the biosynthesis of amino acids, nicotinate and nicotinamide metabolism, arginine and proline metabolism, and flavone and flavonol biosynthesis. Interestingly, Fe3O4 and ZnO NPs restored 50% and 47% in the roots, while they restored 70% and 63% in the leaves to normal levels, thereby facilitating plant growth. Correlation analysis further indicated that these metabolites, including proline, 6-hydroxynicotinic acid, farrerol and quercetin-3-O-sophoroside, were significantly correlated with plant growth. Conclusions: These results collectively indicate that metal nanoparticles can serve as plant growth regulators and provide insights into using them for improving crops in heavy metal-contaminated areas. |
| Keyword | Metabolomics Cadmium Alkaloids Amino acids Flavonoids |
| Subject Area | Biotechnology & Applied Microbiology ; Science & Technology - Other Topics |
| DOI | 10.1186/s12951-022-01509-3 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000817312700004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/13158 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Yunnan Acad Tobacco Agr Sci, Kunming 650021, Yunnan, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Trop Plant Resources & Sustainable Us, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 3.Shanxi Agr Univ, Coll Hort, Taigu 030801, Shanxi, Peoples R China 4.Chinese Acad Sci, Ctr Econ Bot, Mengla 666303, Yunnan, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zou, Congming,Lu, Tianquan,Wang, Ruting,et al. Comparative physiological and metabolomic analyses reveal that Fe3O4 and ZnO nanoparticles alleviate Cd toxicity in tobacco[J]. JOURNAL OF NANOBIOTECHNOLOGY,2022,20(1):-. |
| APA | Zou, Congming.,Lu, Tianquan.,Wang, Ruting.,Xu, Peng.,Jing, Yifen.,...&Wan, Jinpeng.(2022).Comparative physiological and metabolomic analyses reveal that Fe3O4 and ZnO nanoparticles alleviate Cd toxicity in tobacco.JOURNAL OF NANOBIOTECHNOLOGY,20(1),-. |
| MLA | Zou, Congming,et al."Comparative physiological and metabolomic analyses reveal that Fe3O4 and ZnO nanoparticles alleviate Cd toxicity in tobacco".JOURNAL OF NANOBIOTECHNOLOGY 20.1(2022):-. |
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