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Yan Z, He X, Ayala J, Xu Q, Yu X, Hou R, Yao Y, Huang H, Wang H. The Impact of Bamboo Consumption on the Spread of Antibiotic Resistance Genes in Giant Pandas. Vet Sci 2023; 10:630. [PMID: 37999453 PMCID: PMC10675626 DOI: 10.3390/vetsci10110630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/25/2023] Open
Abstract
The spread of antibiotic resistance genes (ARGs) in the environment exacerbates the contamination of these genes; therefore, the role plants play in the transmission of resistance genes in the food chain requires further research. Giant pandas consume different bamboo parts at different times, which provides the possibility of investigating how a single food source can affect the variation in the spread of ARGs. In this study, metagenomic analysis and the Comprehensive Antibiotic Resistance Database (CARD) database were used to annotate ARGs and the differences in gut microbiota ARGs during the consumption of bamboo shoots, leaves, and culms by captive giant pandas. These ARGs were then compared to investigate the impact of bamboo part consumption on the spread of ARGs. The results showed that the number of ARGs in the gut microbiota of the subjects was highest during the consumption of bamboo leaves, while the variety of ARGs was highest during the consumption of shoots. Escherichia coli, which poses a higher risk of ARG dissemination, was significantly higher in the leaf group, while Klebsiella, Enterobacter, and Raoultella were significantly higher in the shoot group. The ARG risk brought by bamboo shoots and leaves may originate from soil and environmental pollution. It is recommended to handle the feces of giant pandas properly and regularly monitor the antimicrobial and virulence genes in their gut microbiota to mitigate the threat of antibiotic resistance.
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Affiliation(s)
- Zheng Yan
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
- Key Laboratory for Biodiversity and Ecological Engineering of Ministry of Education, Department of Ecology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Xin He
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
| | - James Ayala
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
| | - Qin Xu
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
| | - Xiaoqiang Yu
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
| | - Rong Hou
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
| | - Ying Yao
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
| | - He Huang
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
| | - Hairui Wang
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; (Z.Y.); (J.A.); (Q.X.); (X.Y.); (R.H.); (Y.Y.); (H.H.)
- Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
- Sichuan Academy of Giant Panda, Chengdu 610081, China
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Wang X, Zhang Y, Li C, Li G, Wu D, Li T, Qu Y, Deng W, He Y, Penttinen P, Zhang H, Huang Y, Zhao K, Zou L. Antimicrobial resistance of Escherichia coli, Enterobacter spp., Klebsiella pneumoniae and Enterococcus spp. isolated from the feces of giant panda. BMC Microbiol 2022; 22:102. [PMID: 35421931 PMCID: PMC9008915 DOI: 10.1186/s12866-022-02514-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 04/01/2022] [Indexed: 11/26/2022] Open
Abstract
Background Escherichia coli, Enterobacter spp., Klebsiella pneumoniae and Enterococcus spp., common gut bacteria in giant pandas, include opportunistic pathogens. The giant panda is an endangered species, classified as vulnerable by the World Wildlife Foundation. Continuous monitoring for the emergence of antimicrobial resistance (AMR) among bacterial isolates from giant pandas is vital not only for their protection but also for public health. Results A total of 166 E. coli, 68 Enterobacter spp., 116 K. pneumoniae and 117 Enterococcus spp. isolates were collected from fecal samples of 166 giant pandas. In the antimicrobial susceptibility tests, 144 E. coli isolates, 66 Enterobacter spp. isolates, 110 K. pneumoniae isolates and 43 Enterococcus spp. isolates were resistant to at least one antimicrobial. The resistant isolates carried antimicrobial resistance genes (ARGs), including sul3, blaTEM, blaSHV and tetA. The differences in the prevalence of the bla types implied that the genetic basis for β-lactam resistance among the E. coli, Enterobacter spp. and K. pneumoniae isolates was different. The strain K. pneumoniae K85 that was resistant to sixteen antimicrobials was selected for whole genome sequencing. The genome contained Col440I, IncFIBK and IncFIIK plasmids and altogether 258 ARGs were predicted in the genome; 179 of the predicted ARGs were efflux pump genes. The genetic environment of the β-lactamase genes blaCTX-M-3 and blaTEM-1 in the K. pneumoniae K85 genome was relatively similar to those in other sequenced K. pneumoniae genomes. In comparing the giant panda age groups, the differences in the resistance rates among E. coli, K. pneumoniae and Enterobacter spp. isolates suggested that the infections in giant pandas of different age should be treated differently. Conclusions Antimicrobial resistance was prevalent in the bacterial isolates from the giant pandas, implying that the gut bacteria may pose serious health risks for captive giant pandas. The resistance genes in the genome of K. pneumoniae K85 were associated with insertion sequences and integron-integrase genes, implying a potential for the further spread of the antimicrobial resistance. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02514-0.
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Draft Genome Sequences of Enterobacter cloacae Strains CAPREx E7 and CAPREx E2-2. GENOME ANNOUNCEMENTS 2017; 5:5/23/e00488-17. [PMID: 28596406 PMCID: PMC5465625 DOI: 10.1128/genomea.00488-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Enterobacter cloacae strains CAPREx E7 and CAPREx E2-2 were isolated from Ghanaian yams at a London market. The draft genome sequences indicate that the two strains are similar, with genomes of 5,042,838 and 5,039,930 bp and 56.19% and 55.05% G+C content, respectively. Both strains encoded three different β-lactamases, including one of the AmpC family.
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Kumar J, Babele PK, Singh D, Kumar A. UV-B Radiation Stress Causes Alterations in Whole Cell Protein Profile and Expression of Certain Genes in the Rice Phyllospheric Bacterium Enterobacter cloacae. Front Microbiol 2016; 7:1440. [PMID: 27672388 PMCID: PMC5018602 DOI: 10.3389/fmicb.2016.01440] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 08/30/2016] [Indexed: 11/30/2022] Open
Abstract
Among the different types of UV radiation, UV-B radiation (280-315 nm) has gained much attention mainly due to its increasing incidence on the Earth’s surface leading to imbalances in natural ecosystems. This study deals with the effects of UV-B radiation on the proteome and gene expression in a rice phyllospheric bacterium, Enterobacter cloacae. Of the five bacteria isolated from rice leaves, E. cloacae showed the highest level of resistance to UV-B and total killing occurred after 8 h of continuous exposure to UV-B. Reactive oxygen species were induced by UV-B exposure and increased with increasing duration of exposure. Protein profiling by SDS-PAGE and 2-dimensional gel electrophoresis (2-DE) revealed major changes in the number as well as expression of proteins. Analysis of 2-DE gel spots indicated up/down-regulation of several proteins under the stress of UV-B radiation. Thirteen differentially expressed proteins including two hypothetical proteins were identified by MALDI-TOF MS and assigned to eight functional categories. Both the hypothetical proteins (gi 779821175 and gi 503938301) were over-expressed after UV-B irradiation; gi 503938301 was characterized as a member of FMN reductase superfamily whereas gi 779821175 seems to be a structural protein as it did not show any functional domain. That the expression of certain proteins under UV-B stress is indeed up-regulated was confirmed by qRT-PCR. Transcript analysis of selected gene including genes of hypothetical proteins (cp011650 and cp002886) showed over-expression under UV-B stress as compared to untreated control cultures. Although this study deals with a limited number of proteins, identification of differentially expressed proteins reported herein may prove useful in future studies especially for assessing their significance in the protection mechanism of bacteria against UV-B radiation stress.
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Affiliation(s)
- Jay Kumar
- School of Biotechnology, Institute of Science, Banaras Hindu University Varanasi, India
| | - Piyoosh K Babele
- School of Biotechnology, Institute of Science, Banaras Hindu University Varanasi, India
| | - Divya Singh
- School of Biotechnology, Institute of Science, Banaras Hindu University Varanasi, India
| | - Ashok Kumar
- School of Biotechnology, Institute of Science, Banaras Hindu University Varanasi, India
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