期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 727, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.138708
关键词
Strawberry; Enterobacteriaceae; ARGs; Endophytes; Microbiome; Metagenome
资金
- National Nature Science Foundation of China [41877144]
- Zhejiang Provincial Key Research and Development Program of China [2018C02034]
- National Key Research and Development Program of China [2016YFD0200205]
Antibiotic resistance genes (ARGs) harbored by plant microbiomes have been implicated as a potential risk to public health via food chain, especially directly edible fruits and vegetables. Here, we investigated the microbiome and antibiotic resistome in soil-strawberry ecosystem using shotgun metagenomic sequencing. The results showed that the enterobacterial population dominated the endophytes of strawberry fruits. Moreover, 85 subtypes of ARGs, including several clinically important ARGs, were detected in the strawberry fruit metagenomes. Additionally, host tracking analysis in combination with antibiotic-resistant bacterial isolate screening suggested that fruit-borne ARGsweremainly carried by members of the Enterobacteriaceae family. Unexpectedly, most of fruit-borne isolates were found to be resistant to several clinically important antimicrobials, e.g., erythromycin and cephalexin. Our findings provide broad insights into endophytic antibiotic resistomes of direct edible strawberry fruits and their potential hosts, and highlight the potential exposure risks of plant microbiomes to the human food chain. (C) 2020 Elsevier B.V. All rights reserved.
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