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Influence of alpha- and gamma-Fe2O3 Nanoparticles on Watermelon (Citrullus lanatus) Physiology and Fruit Quality

文献类型： 外文期刊

作者： Li, Junli 1 ; Wan, Fengting 1 ; Guo, Wenjing 1 ; Huang, Jiali 1 ; Dai, Zhaoyi 2 ; Yi, Licong 2 ; Wang, Yunqiang 2 ;

作者机构： 1.Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Peoples R China

2.Hubei Acad Agr Sci, Inst Econ Crops, Wuhan 430064, Peoples R China

3.Hubei Acad Agr Sience, Vegetable Germplasm Innovat & Genet Improvement K, Wuhan 430064, Peoples R China

关键词： gamma-Fe2O3 NPs; alpha-Fe2O3 NPs; Watermelon; VC content; Growth regulation

期刊名称：WATER AIR AND SOIL POLLUTION （ 影响因子：2.52； 五年影响因子：2.574 ）

ISSN： 0049-6979

年卷期： 2020 年 231 卷 4 期

页码：

收录情况： SCI

摘要： Iron deficiency has been becoming a worldwide problem in crop cultivation. New approaches are desired to alleviate the iron-deficit chlorosis. Iron-containing nanomaterials could be effective to supply the iron to plants and promote plant growth. In this study, soil cultured watermelon plants were treated with 100, 200, and 400 ppm alpha- and gamma -Fe2O3 nanoparticles (NPs), respectively. Growth and physiology parameters were investigated in a period of time. The study also evaluated the nutritional quality of watermelon fruit. Results showed that no elevation of plant growth or chlorophyll content was observed. All alpha- and gamma -Fe2O3 NPs treatments had no positive influence on nutritional components including central and edge sugar content, and total amino acid content. An interesting result was that the vitamin C (VC) content of all NP treatments was significantly improved compared with the control group (without iron). In addition, we found that iron distribution of alpha- and gamma -Fe2O3 NPs treatments was closely related to the concentrations of NPs. Both alpha- and gamma -Fe2O3 NPs could accumulate in root, stem, and leaf of watermelon plants, but only 400 ppm gamma -Fe2O3 NPs treatment was found to exist in watermelon fruit. Although no promotion of alpha- and gamma -Fe2O3 NPs on the growth of watermelon plants was occurred, our results showed that both alpha- and gamma -Fe2O3 NPs could enter plant roots and translocate upwards to other tissues. Our finds will provide data for the future applications of iron-containing nanomaterials in agricultural production.

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