[1]武 剑,Debela Sisay-Abebe,华倩雯,等.外源抗生素对栽培作物与野生植物的氧化胁迫及其富集转运的差异性[J].南京师范大学学报(自然科学版),2020,43(02):84-91.[doi:10.3969/j.issn.1001-4616.2020.02.014]
　Wu Jian,Debela Sisay-Abebe,Hua Qianwen,et al.Study on Differences of Oxidative Stress,Enrichment and Transport ofExogenous Antibiotics in Cultivated Crops and Wild Plants[J].Journal of Nanjing Normal University(Natural Science Edition),2020,43(02):84-91.[doi:10.3969/j.issn.1001-4616.2020.02.014]
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外源抗生素对栽培作物与野生植物的氧化胁迫及其富集转运的差异性()
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《南京师范大学学报》（自然科学版）[ISSN:1001-4616/CN:32-1239/N]

卷:
第43卷
期数:
2020年02期
页码:
84-91
栏目:
·生物学·
出版日期:
2020-05-30

文章信息/Info

Title:
Study on Differences of Oxidative Stress,Enrichment and Transport ofExogenous Antibiotics in Cultivated Crops and Wild Plants
文章编号:
1001-4616(2020)02-0084-08
作者:
武 剑; Debela Sisay-Abebe; 华倩雯; 陈欣瑶; 张 园
苏州科技大学环境科学与工程学院,江苏 苏州 215009
Author(s):
Wu Jian; Debela Sisay-Abebe; Hua Qianwen; Chen Xinyao; Zhang Yuan
School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China
关键词:
栽培作物; 野生植物; 抗生素; 氧化胁迫; 富集转运
Keywords:
cultivated crops; wild plants; antibiotics; oxidative stress; enrichment and translocation
分类号:
X53
DOI:
10.3969/j.issn.1001-4616.2020.02.014
文献标志码:
A
摘要:
为探讨外源抗生素对栽培作物和野生植物的氧化胁迫及其在两者体内富集转运的差异性,采用土培实验研究了外源抗生素对栽培作物(青菜、生菜、玉米)和野生植物(稗草、马唐、狗尾)抗氧化酶活性(SOD、POD、CAT)和丙二醛(MDA)含量的影响,以及残留的四环素类、磺胺类、喹诺酮类抗生素在栽培作物和野生植物中的富集转运特征. 结果表明,外源抗生素显著抑制了栽培作物的SOD活性,其地下部分和地上部分的SOD活性较CK(无抗生素污染)降低了64.57%～105.52%和178.24%～260.00%. 外源抗生素还显著增加了栽培作物的MDA含量,而野生植物变化较小. 栽培作物和野生植物对外源抗生素的富集能力整体上呈现:栽培作物>野生植物,但其转运抗生素的能力:野生植物>栽培作物,且两者体内及其根际土壤中均以四环素类抗生素的残留量最大. 研究表明,在抗生素污染的土壤中,栽培作物受到的胁迫作用在一定程度上要大于野生植物; 栽培作物和野生植物分别具有较高的富集抗生素能力和转运抗生素能力,因此两者都具有不可忽视的生态风险,且在抗生素污染的土壤-植物系统中四环素类抗生素的生态风险较高.
Abstract:
In order to explore the differences of oxidative stress of exogenous antibiotics on cultivated crops and wild plants and their enrichment and transport characteristics,pot experiment was carried out to study the effect of exogenous antibiotics on the antioxidant enzyme activities(SOD,POD,CAT)and content of malondialdehyde(MDA)in cultivated crops(pakchoi,lettuce,corn)and wild plants(barnyard grass,crabgrass,setaria viridis)and their enrichment and transport characteristics of residual tetracycline,sulfa and quinolone antibiotics. The results showed that the exogenous antibiotics significantly inhibited the SOD activity of cultivated crops,and the SOD activities of the underground and aboveground parts were reduced respectively by 64.57%-105.52% and 178.24%-260.00% compared with CK(no antibiotic contamination). Exogenous antibiotics also significantly increased the MDA content of cultivated crops,while wild plants showed no significance. On the whole,the rating of enrichment capacity of cultivated crops and wild plants to exogenous antibiotics was,cultivated crops>wild plants,while the rating of transport capacity of antibiotics was,wild plants>cultivated crops. The residual amount of tetracycline antibiotics was the largest in both plants’ bodies and rhizosphere soils. In conclusion,cultivated crops were more stressed than wild plants to a certain extent in antibiotic contaminated soil. Cultivated crops and wild plants respectively had higher ability of enriching and transporting antibiotics,so both of them had nonnegligible ecological risks,and tetracycline antibiotics had higher ecological risks in antibiotic contaminated soil-plant systems.

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备注/Memo

备注/Memo:
收稿日期:2020-01-14.
基金项目:国家自然科学基金项目(41701564)、苏州市科技计划项目(SNG201613)、江苏省高校自然科学基金项目(17KJB610010).
通讯作者:张园,博士,副教授,研究方向:土壤污染治理与修复. E-mail:yuanzhang_1001@mail.usts.edu.cn
更新日期/Last Update: 2020-05-15