Magnetic Fe3O4 nanoparticles enhance cyanobactericidal effect of allelopathic p-hydroxybenzoic acid on Microcystis aeruginosa by enhancing hydroxyl radical production
文献类型：期刊论文
| 作者 | Zuo, Shengpeng1,3; Yang, Hao1,3 ; Jiang, Xiaofeng1,3; Ma, Yongqing2
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2021-05-20 |
| 卷号 | 770页码:10 |
| 关键词 | Cyanobactericidal effect Harmful algal bloom management Hydroxyl radical Magnetic Fe3O4 nanoparticle P-hydroxybenzoic acid |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.145201 |
| 通讯作者 | Zuo, Shengpeng(spzuo@mails.ucas.ac.cn) |
| 英文摘要 | Recently, considerable progress has been made in the environmental application of nanotechnology. However, little is known about hownanomaterials might affect the cyanobacterial suppression potential of allelochemicals. In this study, a microcosm was employed to simulate and verify the effect of magnetic Fe3O4 nanoparticles (MFN) on the inhibitory influence of allelopathic hydroxybenzoic acid (p-Ha) on bloom-forming Microcystis aeruginosa. MFN had a hormetic effect on cyanobacterial growth. At a neutral concentration of 182 mg/L, MFN enhanced the algal suppression by p-Ha and decreased the IC50 by half, which was significantly and positively associated with the amount of .OH. Furthermore, adding MFN induced a stronger physiological response than treatment with only p-Ha. The cellular integrity was severely disrupted for the cyanobacterium M. aeruginosa. The total protein content decreased rapidly to inactivate the algae by limiting the amounts of extracellular microcystin and polysaccharide released. The modification of the effect of p-Ha byMFN was reflected by the intracellular NO content of M. aeruginosa. In addition, the typical radical scavengers ascorbic acid and 5,5-dimethyl-1-pyrroline N-oxide decreased .OH production to weaken algal suppression under the combined treatment with p-Ha and MFN. By contrast, the addition of Fe3+ and increasing the light intensity triggered the generation of .OH and strong cyanobacterial suppression. Thus, MFN could enhance the cyanobacterial control efficiency of p-Ha and decrease the input of allelochemicals in the field. These findings suggest a novel mode of allelochemical modification by nanomaterials as a promising cyanobactericide for harmful algal bloom management. (C) 2021 Elsevier B.V. All rights reserved. |
| 资助项目 | Anhui Provincial Natural Science Foundation[1708085MC59] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000627896100060 |
| 出版者 | ELSEVIER |
| 资助机构 | Anhui Provincial Natural Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162018]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zuo, Shengpeng |
| 作者单位 | 1.Anhui Normal Univ, Collaborat Innovat Ctr Recovery & Reconstruct Deg, Sch Ecol & Environm, Anhui Prov Engn Lab Water & Soil Pollut Control &, Wuhu 241003, Peoples R China 2.Northwest A&F Univ, Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 3.Anhui Normal Univ, Minist Educ, Sch Ecol & Environm, Anhui Prov Engn Lab Water & Soil Pollut Control &, Wuhu 241003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo, Shengpeng,Yang, Hao,Jiang, Xiaofeng,et al. Magnetic Fe3O4 nanoparticles enhance cyanobactericidal effect of allelopathic p-hydroxybenzoic acid on Microcystis aeruginosa by enhancing hydroxyl radical production[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,770:10. |
| APA | Zuo, Shengpeng,Yang, Hao,Jiang, Xiaofeng,&Ma, Yongqing.(2021).Magnetic Fe3O4 nanoparticles enhance cyanobactericidal effect of allelopathic p-hydroxybenzoic acid on Microcystis aeruginosa by enhancing hydroxyl radical production.SCIENCE OF THE TOTAL ENVIRONMENT,770,10. |
| MLA | Zuo, Shengpeng,et al."Magnetic Fe3O4 nanoparticles enhance cyanobactericidal effect of allelopathic p-hydroxybenzoic acid on Microcystis aeruginosa by enhancing hydroxyl radical production".SCIENCE OF THE TOTAL ENVIRONMENT 770(2021):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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