1
|
Rubio-Noguez D, Breton-Deval L, Salinas-Peralta I, Juárez K, Galicia L. Pollution pressure drives microbial assemblages that improve the phytoremediation potential of heavy metals by Ricinus communis. World J Microbiol Biotechnol 2024; 40:241. [PMID: 38866993 PMCID: PMC11169050 DOI: 10.1007/s11274-024-04025-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 05/16/2024] [Indexed: 06/14/2024]
Abstract
Due to the rapid expansion of industrial activity, soil pollution has intensified. Plants growing in these polluted areas have developed a rhizobiome uniquely and specially adapted to thrive in such environments. However, it remains uncertain whether pollution acts as a sufficiently selective force to shape the rhizobiome, and whether these adaptations endure over time, potentially aiding in long-term phytoremediation. Therefore, in the present study, we aimed to compare whether the microbiome associated with roots from plants germinated in polluted riverbanks will improve the phytoremediation of Cd and Pb under mesocosm experiments compared with plants germinating in a greenhouse. The experimental design was a factorial 2 × 2, i.e., the origin of the plant and the presence or absence of 100 mg/L of Cd and 1000 mg/L of Pb. Our results showed that plants germinated in polluted riverbanks have the capacity to accumulate twice the amount of Pb and Cd during mesocosm experiments. The metagenomic analysis showed that plants from the river exposed to heavy metals at the end of mesocosm experiments were rich in Rhizobium sp. AC44/96 and Enterobacter sp. EA-1, Enterobacter soli, Pantoea rwandensis, Pantoea endophytica. In addition, those plants were uniquely associated with Rhizobium grahamii, which likely contributed to the differences in the levels of phytoremediation achieved. Furthermore, the functional analysis revealed an augmented functional potential related to hormones, metallothioneins, dismutases, and reductases; meanwhile, the plants germinated in the greenhouse showed an unspecific strategy to exceed heavy metal stress. In conclusion, pollution pressure drives stable microbial assemblages, which could be used in future phytostabilization and phytoremediation experiments.
Collapse
Affiliation(s)
- Daniela Rubio-Noguez
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos, 62210, México
| | - Luz Breton-Deval
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos, 62210, México.
- Consejo Nacional de Ciencia y Tecnología, Avenida de los Insurgentes Sur 1582, Crédito Constructor, Benito Juárez, Ciudad de México, 03940, México.
| | - Ilse Salinas-Peralta
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos, 62210, México
| | - Katy Juárez
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Avenida Universidad 2001, Colonia Chamilpa, Cuernavaca, Morelos, 62210, México
| | - Leopoldo Galicia
- Instituto de Geografía Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Investigación Científica, Ciudad Universitaria, C.U., Ciudad de México, CDMX, 04510, México
| |
Collapse
|
2
|
Xu L, Zhao Y, Li Y, Sun JQ. Genomic and transcriptomic analyses provide new insights into the allelochemical degradation preference of a novel Acinetobacter strain. ENVIRONMENTAL RESEARCH 2024; 246:118145. [PMID: 38191044 DOI: 10.1016/j.envres.2024.118145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/31/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024]
Abstract
A novel n-alkane- and phenolic acid-degrading Acinetobacter strain (designated C16S1T) was isolated from rhizosphere soil. The strain was identified as a novel species named Acinetobacter suaedae sp. nov. using a polyphasic taxonomic approach. Strain C16S1T showed preferential degradation of three compounds: p-hydroxybenzoate (PHBA) > ferulic acid (FA) > n-hexadecane. In a medium containing two or three of these allelochemicals, coexisting n-hexadecane and PHBA accelerated each other's degradation and that of FA. FA typically hindered the degradation of n-hexadecane but accelerated PHBA degradation. The upregulated expression of n-hexadecane- and PHBA-degrading genes induced, by their related substrates, was mutually enhanced by coexisting PHBA or n-hexadecane; in contrast, expression of both gene types was reduced by FA. Coexisting PHBA or n-hexadecane enhanced the upregulation of FA-degrading genes induced by FA. The expressions of degrading genes affected by coexisting chemicals coincided with the observed degradation efficiencies. Iron shortage limited the degradation efficiency of all three compounds and changed the degradation preference of Acinetobacter. The present study demonstrated that the biodegradability of the chemicals, the effects of coexisting chemicals on the expression of degrading genes and the strain's growth, the shortage of essential elements, and the toxicity of the chemicals were the four major factors affecting the removal rates of the coexisting allelochemicals.
Collapse
Affiliation(s)
- Lian Xu
- Laboratory for Microbial Resources, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China; Jiangsu Key Laboratory for Organic Solid Waste Utilization, Educational Ministry Engineering Center of Resource-saving Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yang Zhao
- Laboratory for Microbial Resources, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
| | - Yue Li
- Laboratory for Microbial Resources, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
| | - Ji-Quan Sun
- Laboratory for Microbial Resources, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China.
| |
Collapse
|
3
|
Zhang Q, Zhao J, Wang G, Guan H, Wang S, Yang J, Zhang J, Jian S, Ouyang L, Wu Z, Li A. Differences of bacterioplankton communities between the source and upstream regions of the Yangtze River: microbial structure, co-occurrence pattern, and environmental influencing factors. Braz J Microbiol 2024; 55:571-586. [PMID: 38302737 PMCID: PMC10920563 DOI: 10.1007/s42770-024-01265-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 01/06/2024] [Indexed: 02/03/2024] Open
Abstract
The source area of the Yangtze River is located in the hinterland of the Qinghai-Tibet Plateau, which is known as the "Earth's third pole." It is the water conservation area and the natural barrier of the ecosystem of the Yangtze River basin. It is also the most sensitive area of the natural ecosystem, and the ecological environment is very fragile. Microorganisms play key roles in the biogeochemical processes of water. In this paper, the bacterioplankton communities in the source and upstream regions of the Yangtze River were studied based on 16S rRNA high-throughput sequencing, and their environmental influencing factors were further analyzed. Results showed that the upstream region had higher richness and diversity than the source region. The predominant bacterial phyla in the source and upstream regions were Proteobacteria, Firmicutes, and Actinobacteriota. The bacterial phyla associated with municipal pollution and opportunistic pathogen, such as Firmicutes and Actinobacteriota, were more abundant in the upstream. By contrast, distinct planktonic bacterial genera associated with mining pollution, such as Acidiphilium and Acidithiobacillus, were more abundant in the source region. The co-occurrence network showed that the interaction of bacterioplankton community is more frequent in the upstream. The bacterioplankton community compositions, richness, and functional profiles were affected by the spatial heterogeneity. Moreover, variation partitioning analysis further confirmed that the amount of variation in the source region independently explained by variables of altitude was the largest, followed by water nutrient. This paper revealed the spatial distribution of planktonic bacterial communities in the source and upstream regions of the Yangtze River and its correlation with environmental factors, providing information support for ensuring the health and safety of aquatic ecosystems in the Yangtze River Basin.
Collapse
Affiliation(s)
- Qianqian Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Juan Zhao
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, 810012, China
- Key Laboratory of Plateau Aquatic and Ecological Environmental in Qinghai Province, Xining, 810012, China
| | - Guojie Wang
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, 810012, China
- Key Laboratory of Plateau Aquatic and Ecological Environmental in Qinghai Province, Xining, 810012, China
| | - Hongtao Guan
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, 810012, China
- Key Laboratory of Plateau Aquatic and Ecological Environmental in Qinghai Province, Xining, 810012, China
| | - Shuyi Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jicheng Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jinyong Zhang
- The Laboratory of Aquatic Parasitology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266237, China
| | - Shenglong Jian
- Qinghai Provincial Fishery Environmental Monitoring Center, Xining, 810012, China
- Key Laboratory of Plateau Aquatic and Ecological Environmental in Qinghai Province, Xining, 810012, China
| | - Lijian Ouyang
- Ecological Engineering College, Guizhou University of Engineering Science, Bijie, 551700, China
| | - Zhenbing Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Aihua Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| |
Collapse
|
4
|
Dong X, Yang Y. Acinetobacter entericus sp. nov., isolated from the gut of plastic-eating insect larvae Zophobas atratus. Int J Syst Evol Microbiol 2023; 73. [PMID: 37609852 DOI: 10.1099/ijsem.0.006006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023] Open
Abstract
A Gram-negative, non-motile and rod-shaped strain, BIT-DXN8T, was isolated from the gut of plastic-eating insect larvae Zophobas atratus. The taxonomic position of this new isolate was examined by using a polyphasic approach. A preliminary analysis based on the 16S rRNA gene sequence (1411 bp) indicated that the most similar strain to BIT-DXN8T was Acinetobacter bouvetii DSM 14964T (98.5%), followed by Acinetobacter haemolyticus CIP 64.3T (98.2%) and Acinetobacter pullicarnis S23T (98.2%). The results of phylogenetic analyses, based on the 16S rRNA gene, concatenated sequences of five housekeeping genes (fusA, gyrB, recA, rplB and rpoB) and genome sequences, placed strain BIT-DXN8T in a separate lineage among the genus Acinetobacter of the family Moraxellaceae. The average nucleotide identity and digital DNA-DNA hybridization values of the strain when compared to all other species within the genus Acinetobacter were below 96 and 70 %, respectively. The physiological and biochemical tests confirm the affiliation of strain BIT-DXN8T to the present species within the genus Acinetobacter, but with some specific phenotypic differences. Therefore, strain BIT-DXN8T is considered to represent a novel species, for which the name Acinetobacter entericus sp. nov. is proposed. The type strain is BIT-DXN8T (=CCTCC AB 2022117T=KCTC 92696T).
Collapse
Affiliation(s)
- Xuena Dong
- Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| | - Yu Yang
- Department of Biology, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China
| |
Collapse
|
5
|
Irfan M, Almotiri A, AlZeyadi ZA. Antimicrobial Resistance and β-Lactamase Production in Clinically Significant Gram-Negative Bacteria Isolated from Hospital and Municipal Wastewater. Antibiotics (Basel) 2023; 12:antibiotics12040653. [PMID: 37107015 PMCID: PMC10135027 DOI: 10.3390/antibiotics12040653] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/19/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
Hospital and municipal wastewater contribute to the spread of antibiotic-resistant bacteria and genes in the environment. This study aimed to examine the antibiotic resistance and β-lactamase production in clinically significant Gram-negative bacteria isolated from hospital and municipal wastewater. The susceptibility of bacteria to antibiotics was tested using the disk diffusion method, and the presence of extended-spectrum β-lactamases (ESBL) and carbapenemases was determined using an enzyme inhibitor and standard multiplex PCR. Analysis of antimicrobial resistance of total bacterial strains (n = 23) revealed that most of them were resistant to cefotaxime (69.56%), imipenem (43.47%), meropenem (47.82%) and amoxicillin-clavulanate (43.47%), gentamicin (39.13%), cefepime and ciprofloxacin (34.78%), trimethoprim-sulfamethoxazole (30.43%). A total of 8 of 11 phenotypically confirmed isolates were found to have ESBL genes. The blaTEM gene was present in 2 of the isolates, while the blaSHV gene was found in 2 of the isolates. Furthermore, the blaCTX-M gene was found in 3 of the isolates. In one isolate, both the blaTEM and blaSHV genes were identified. Furthermore, of the 9 isolates that have been phenotypically confirmed to have carbapenemase, 3 were confirmed by PCR. Specifically, 2 isolates have the blaOXA-48 type gene and 1 have the blaNDM-1 gene. In conclusion, our investigation shows that there is a significant rate of bacteria that produce ESBL and carbapenemase, which can promote the spread of bacterial resistance. Identifying ESBL and carbapenemase production genes in wastewater samples and their resistance patterns can provide valuable data and guide the development of pathogen management strategies that could potentially help reduce the occurrence of multidrug resistance.
Collapse
|
6
|
Chen XM, An DF, He SR, Yang SJ, Yang ZZ, Xiong LS, Li GD, Jiang MG, Jiang CL, Jiang Y. Acinetobacter faecalis Sp. Nov., Isolated from Elephant Faeces. Curr Microbiol 2022; 80:21. [PMID: 36460940 DOI: 10.1007/s00284-022-03097-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/20/2022] [Indexed: 12/03/2022]
Abstract
A Gram-negative coccobacillus, YIM 103518T, isolated from wild elephant feces in Xishuangbanna, Yunnan Province, West China, was characterized and identified using a polyphasic taxonomic approach. The strain was strictly aerobic, non-motile, catalase-positive and oxidase-negative, colonies were round, convex, smooth, and pale yellow. The strain growth at 4-40 ℃ (optimum, 28 ℃), pH 6.0-10.0 (optimum, pH 7.0) and 0-4% NaCl (optimum, 0%) in culture medium YIM 38. The major fatty acids of strain YIM 103518T were summed feature 3 (C16:1 ω6c/C16:1 ω7c), C16:0, and C18:1 ω9c. The predominant ubiquinone was Q-9. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine and phospholipids. The 16S rRNA gene sequence showed moderate level of similarity with Acinetobacter portensis AC 877T (98.7%), Acinetobacter sichuanensis CCTCC AB 2018118T (97.1%), and Acinetobacter cumulans CCTCC AB 2018119T (97.1%). The G+C content of the genomic DNA was 36.5 mol%. Strain YIM 103518T showed an average nucleotide identity value of 86.6%, 77.3% and 78.5%, a digital DNA-DNA hybridizations value of 31.2%, 21.9% and 23.0% with the type strain of A. portensis, A. sichuanensis and A. cumulans based on draft genome sequences, respectively. The results of the phenotypic, chemotaxonomic and phylogenetic analyses, showed that strain YIM 103518T represents a novel species of the genus Acinetobacter, for which the name Acinetobacter faecalis sp. nov. is proposed. The type strain is YIM 103518T (=CCTCC AB 2019201T = NBRC 114057T).
Collapse
Affiliation(s)
- Xue-Mei Chen
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - De-Feng An
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - Si-Rong He
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - Shao-Juan Yang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - Zu-Zhen Yang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - Lian-Shuang Xiong
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - Gui-Ding Li
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - Ming-Guo Jiang
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Science and Biotechnology, Guangxi University for Nationalities, Nanning, 530008, People's Republic of China
| | - Cheng-Lin Jiang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China
| | - Yi Jiang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, People's Republic of China.
| |
Collapse
|
7
|
Sharma S, Das A, Garg R, Pramanik S, Marndi P, Singh R, Banerjee T, Yadav G, Kumar A. Reservoir of Carbapenem-Resistant Acinetobacter baumannii in the Hospital Environment and Colonization Pressure: A Surveillance-Based Study in Indian Intensive Care Unit. Microb Drug Resist 2022; 28:1079-1086. [DOI: 10.1089/mdr.2022.0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Swati Sharma
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Arghya Das
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Rahul Garg
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Sangita Pramanik
- Applied Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Pooja Marndi
- Applied Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Ravindra Singh
- Institute of Medical Sciences, Sir Sunderlal Hospital, Banaras Hindu University, Varanasi, India
| | - Tuhina Banerjee
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Ghanshyam Yadav
- Department of Anaesthesiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Ashok Kumar
- Department of Pediatrics, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| |
Collapse
|
8
|
Hubeny J, Korzeniewska E, Buta-Hubeny M, Zieliński W, Rolbiecki D, Harnisz M. Characterization of carbapenem resistance in environmental samples and Acinetobacter spp. isolates from wastewater and river water in Poland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153437. [PMID: 35122847 DOI: 10.1016/j.scitotenv.2022.153437] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 05/29/2023]
Abstract
The aim of this study was to analyze the prevalence of carbapenem resistance genes in Acinetobacter spp. isolated from wastewater in a municipal WWTP and to determine their spread from treated wastewater to river water with the use of conventional and molecular microbiology methods (qualitative and quantitative PCR and metagenomic analysis). Samples of untreated and treated wastewater and samples of river water obtained upstream and downstream from the wastewater discharge point were collected in 3 seasons (February, June, and September) of 2019. Acinetobacter spp. isolates were obtained by the culture method on the CHROMagar™ Acinetobacter medium. Additionally, environmental DNA was extracted from the samples for metagenomic and qPCR analyses. The presence of beta-lactam resistance genes (Ambler class B and D), insertion sequence ISAba1, and class I, II, and III integron-integrase genes was determined, and the bacterial taxonomic structure and wastewater and river samples was analyzed. Out of the 301 isolates obtained on the CHROMagar™ Acinetobacter medium, 258 belonged to the genus Acinetobacter, including 21 isolates that were identified as Acinetobacter baumannii. The highest number of Acinetobacter spp. and A. baumannii isolates were obtained from wastewater and river water samples collected in June and September. The ISAba1/blaOXA-51 complex was identified in 13 isolates, which confirms the occurrence of carbapenem-resistance isolates in the analyzed samples. The number of Acinetobacter isolates carrying antibiotic resistance genes (ARGs) increased in river water samples collected downstream from the wastewater discharge point (48 out of 258 isolates - 18.6%) compared to river water samples collected upstream from the wastewater discharge point (34 out of 258 isolates - 13.2%), which suggests that WWTP is a source of pollution in the natural environment. The conducted research provides evidence that bacteria of the genus Acinetobacter may spread alarming beta-lactam resistance in the environment and, therefore, pose a serious epidemiological threat.
Collapse
Affiliation(s)
- Jakub Hubeny
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Ewa Korzeniewska
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Martyna Buta-Hubeny
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Wiktor Zieliński
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Damian Rolbiecki
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Monika Harnisz
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland.
| |
Collapse
|
9
|
Zhu W, Dong K, Yang J, Lu S, Lai XH, Pu J, Jin D, Huang Y, Zhang S, Zhou J, Huang Y, Xu J. Acinetobacter lanii sp. nov., Acinetobacter shaoyimingii sp. nov. and Acinetobacter wanghuae sp. nov., isolated from faeces of Equus kiang. Int J Syst Evol Microbiol 2020; 71. [PMID: 33196408 DOI: 10.1099/ijsem.0.004567] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Six aerobic, non-motile, non-haemolytic, Gram-stain-negative, oxidase-negative strains (185T, 187, 323-1T, 194, dk386T and dk771) were recovered from different faecal samples of Equus kiang on the Qinghai-Tibet Plateau. In the 16S rRNA gene sequences, one strain pair, 185T/187, shared highest similarity to Acinetobacter equi 114T (97.9 %), and the other two (323-1T/194 and dk771T/dk386) to Acinetobacter harbinensis CGMCC 1.12528T (98.6 and 97.0 %, respectively). Phylogenomic tree analysis showed that these six strains formed three separate clades in the genus Acinetobacter. Digital DNA-DNA hybridization values of each pair of the isolates with all members of the genus Acinetobacter were far below 70 %. The main cellular fatty acids of all six strains were C18 : 1 ω9c, C16 : 0 and summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c). Q-9 was the predominant respiratory quinone for strains 185T, 323-1T and dk386T. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. Based on the genotypic, phenotypic and biochemical analyses, these six strains represent three novel species of the genus Acinetobacter, for which the names Acinetobacter lanii sp. nov., Acinetobacter shaoyimingii sp. nov. and Acinetobacter wanghuae sp. nov. are proposed. The type strains are 185T (=CGMCC 1.13636T=JCM 33607T), 323-1T (=CGMCC 1.13940T=JCM 33608T) and dk386T (=CGMCC 1.16589T=JCM 33592T), respectively.
Collapse
Affiliation(s)
- Wentao Zhu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Kui Dong
- Present address: Shanxi Eye Hospital, Taiyuan, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Jing Yang
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 100730, PR China
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Shan Lu
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 100730, PR China
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Xin-He Lai
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu 476000, PR China
| | - Ji Pu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Dong Jin
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 100730, PR China
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Yuyuan Huang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Sihui Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Juan Zhou
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Ying Huang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
| | - Jianguo Xu
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 100730, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, PR China
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, PR China
| |
Collapse
|
10
|
Qin J, Feng Y, Lü X, Zong Z. Characterization of Acinetobacter chengduensis sp. nov., isolated from hospital sewage and capable of acquisition of carbapenem resistance genes. Syst Appl Microbiol 2020; 43:126092. [PMID: 32690195 DOI: 10.1016/j.syapm.2020.126092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/01/2020] [Accepted: 05/08/2020] [Indexed: 02/05/2023]
Abstract
Two strains of the genus Acinetobacter, WCHAc060005T and WCHAc060007, were isolated from hospital sewage in China. The two strains showed different patterns of resistance to clinically important antibiotics and their taxonomic positions were investigated. Cells are Gram-negative, obligate aerobic, non-motile, catalase-positive and oxidase-negative coccobacilli. A preliminary analysis based on the 16S rRNA gene sequences indicated that the two strains had the highest similarity to Acinetobacter cumulans WCHAc060092T (99.02%). Whole-genome sequencing of the two strains and genus-wide phylogeny reconstruction based on a set of 107 Acinetobacter core genes indicated that they formed a separate and internally cohesive clade within the genus. The average nucleotide identity based on BLAST and in silico DNA-DNA hybridization values between the two new genomes were 99.77% and 98.7% respectively, whereas those between the two genomes and the known Acinetobacter species were <88.93% and <34.0%, respectively. A total of 7 different genes were found in the two genome sequences which encode resistance to five classes of antimicrobial agents, including clinically important carbapenems, oxyimino-cephalosporins, and quinolones. In addition, the combination of their ability to assimilate gentisate, but not l-glutamate and d,l-lactate could distinguish the two strains from all known Acinetobacter species. Based on these combined data, we concluded that the two strains represent a novel species of the genus Acinetobacter, for which the name Acinetobacter chengduensis sp. nov. is proposed. The type strain is WCHAc060005T (CCTCC AB 2019139=GDMCC 1.1622=JCM 33509).
Collapse
Affiliation(s)
- Jiayuan Qin
- Center of Infectious Diseases, West China Hospital, Sichuan University, Guoxuexiang 37, Chengdu 610041, Sichuan, China; Division of Infectious Diseases, State Key Laboratory of Biotherapy, Guoxuexiang 37, Chengdu 610041, Sichuan, China
| | - Yu Feng
- Center of Infectious Diseases, West China Hospital, Sichuan University, Guoxuexiang 37, Chengdu 610041, Sichuan, China; Division of Infectious Diseases, State Key Laboratory of Biotherapy, Guoxuexiang 37, Chengdu 610041, Sichuan, China; Center for Pathogen Research, West China Hospital, Sichuan University, Guoxuexiang 37, Chengdu 610041, Sichuan, China
| | - Xiaoju Lü
- Center of Infectious Diseases, West China Hospital, Sichuan University, Guoxuexiang 37, Chengdu 610041, Sichuan, China; Division of Infectious Diseases, State Key Laboratory of Biotherapy, Guoxuexiang 37, Chengdu 610041, Sichuan, China
| | - Zhiyong Zong
- Center of Infectious Diseases, West China Hospital, Sichuan University, Guoxuexiang 37, Chengdu 610041, Sichuan, China; Division of Infectious Diseases, State Key Laboratory of Biotherapy, Guoxuexiang 37, Chengdu 610041, Sichuan, China; Center for Pathogen Research, West China Hospital, Sichuan University, Guoxuexiang 37, Chengdu 610041, Sichuan, China; Department of Infection Control, West China Hospital, Sichuan University, Guoxuexiang 37, Chengdu 610041, Sichuan, China.
| |
Collapse
|
11
|
Fouz N, Pangesti KNA, Yasir M, Al-Malki AL, Azhar EI, Hill-Cawthorne GA, Abd El Ghany M. The Contribution of Wastewater to the Transmission of Antimicrobial Resistance in the Environment: Implications of Mass Gathering Settings. Trop Med Infect Dis 2020; 5:tropicalmed5010033. [PMID: 32106595 PMCID: PMC7157536 DOI: 10.3390/tropicalmed5010033] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/30/2020] [Accepted: 02/15/2020] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial resistance (AMR) is the major issue posing a serious global health threat. Low- and middle-income countries are likely to be the most affected, both in terms of impact on public health and economic burden. Recent studies highlighted the role of resistance networks on the transmission of AMR organisms, with this network being driven by complex interactions between clinical (e.g., human health, animal husbandry and veterinary medicine) and other components, including environmental factors (e.g., persistence of AMR in wastewater). Many studies have highlighted the role of wastewater as a significant environmental reservoir of AMR as it represents an ideal environment for AMR bacteria (ARB) and antimicrobial resistant genes (ARGs) to persist. Although the treatment process can help in removing or reducing the ARB load, it has limited impact on ARGs. ARGs are not degradable; therefore, they can be spread among microbial communities in the environment through horizontal gene transfer, which is the main resistance mechanism in most Gram-negative bacteria. Here we analysed the recent literature to highlight the contribution of wastewater to the emergence, persistence and transmission of AMR under different settings, particularly those associated with mass gathering events (e.g., Hajj and Kumbh Mela).
Collapse
Affiliation(s)
- Nour Fouz
- The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW 2145, Australia;
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Krisna N. A. Pangesti
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (K.N.A.P.); (G.A.H.-C.)
| | - Muhammad Yasir
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.Y.); (E.I.A.)
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdulrahman L. Al-Malki
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Esam I. Azhar
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.Y.); (E.I.A.)
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Grant A. Hill-Cawthorne
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (K.N.A.P.); (G.A.H.-C.)
| | - Moataz Abd El Ghany
- The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW 2145, Australia;
- The Marie Bashir Institute of Infectious Diseases and Biosecurity, The University of Sydney, Sydney, NSW 2145, Australia
- The Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2145, Australia
- Correspondence: or
| |
Collapse
|
12
|
Qin J, Feng Y, Lü X, Zong Z. Pseudomonas huaxiensis sp. nov., isolated from hospital sewage. Int J Syst Evol Microbiol 2019; 69:3281-3286. [PMID: 31355741 DOI: 10.1099/ijsem.0.003622] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A novel Gram-negative, obligate aerobic, rod-shaped, motile by one or two polar flagella, non-spore-forming bacterial strain, WCHPs060044T, was isolated from the wastewater treatment plant at West China Hospital in Chengdu, PR China. Analysis of its 16S rRNA gene sequence showed that strain WCHPs060044T belonged to the genus Pseudomonas with the highest similarity to Pseudomonas alkylphenolica KL28T (99.73 %), Pseudomonas donghuensis HYST (99.52 %) and Pseudomonas wadenswilerensis CCOS 846T (99.38 %). Phylogenomic analysis based on 107 core gene sequences demonstrated that WCHPs060044T was a member of the Pseudomonas putida group but was distant from all closely related species. Whole-genome comparisons, using average nucleotide identity based on blast (ANIb) and in silico DNA-DNA hybridization (isDDH), confirmed low genome relatedness to its close phylogenetic neighbours [below the recommended thresholds of 95 % (ANIb) and 70 % (isDDH) for species delineation]. Phenotypic characterization tests showed that the utilization of l-arginine, l-fucose, d-galacturonic, d-glucuronic acid, inositol and sorbitol in combination could distinguish this strain from other related species of the genus Pseudomonas. Therefore, based on genetic and phenotypic evidence, strain WCHPs060044T represents a novel species, for which the name Pseudomonas huaxiensis sp. nov. is proposed. The type strain is WCHPs060044T (GDMCC 1.1396T=JCM 32907T=CCTCC AB 2018120T=CNCTC 7663T).
Collapse
Affiliation(s)
- Jiayuan Qin
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, PR China.,Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yu Feng
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, PR China.,Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, PR China
| | - Xaioju Lü
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, PR China
| | - Zhiyong Zong
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, PR China.,Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, PR China.,Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, PR China
| |
Collapse
|
13
|
Oren A, Garrity G. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2019; 69:2627-2629. [PMID: 31478825 DOI: 10.1099/ijsem.0.003624] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Aharon Oren
- The Institute of Life Sciences, The Hebrew University of Jerusalem, The Edmond J. Safra Campus, 9190401 Jerusalem, Israel
| | - George Garrity
- Department of Microbiology & Molecular Genetics, Biomedical Physical Sciences, Michigan State University, East Lansing, MI 48824-4320, USA
| |
Collapse
|