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Study on Differences of Oxidative Stress,Enrichment and Transport ofExogenous Antibiotics in Cultivated Crops and Wild Plants(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2020年02期
Page:
84-91
Research Field:
·生物学·
Publishing date:

Info

Title:
Study on Differences of Oxidative Stress,Enrichment and Transport ofExogenous Antibiotics in Cultivated Crops and Wild Plants
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
Keywords:
cultivated crops; wild plants; antibiotics; oxidative stress; enrichment and translocation
PACS:
X53
DOI:
10.3969/j.issn.1001-4616.2020.02.014
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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Last Update: 2020-05-15