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Radzlin N, Yaakop AS, Goh KM, Liew KJ, Zakaria II, Kahar UM. Genome Analysis of Celeribacter sp. PS-C1 Isolated from Sekinchan Beach in Selangor, Malaysia, Reveals Its β-Glucosidase and Licheninase Activities. Microorganisms 2022; 10:410. [PMID: 35208867 PMCID: PMC8874975 DOI: 10.3390/microorganisms10020410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/06/2022] [Accepted: 02/08/2022] [Indexed: 11/16/2022] Open
Abstract
A halophilic marine bacterial strain, PS-C1, was isolated from Sekinchan beach in Selangor, Malaysia. The 16S rRNA gene sequence analysis indicated that strain PS-C1 was associated with the genus Celeribacter. To date, there have been no reports on enzymes from the genus Celeribacter. The present study reports on the cellular features of Celeribacter sp. PS-C1, its annotated genome sequence, and comparative genome analyses of Celeribacter glycoside hydrolase (GH) enzymes. The genome of strain PS-C1 has a size of 3.87 Mbp and a G+C content of 59.10%, and contains 3739 protein-coding genes. Detailed analysis using the Carbohydrate-Active enZYmes (CAZy) database revealed that Celeribacter genomes harboured at least 12 putative genes encoding industrially important GHs that are grouped as cellulases, β-glucanases, hemicellulases, and starch-degrading enzymes. Herein, the potential applications of these enzymes are discussed. Furthermore, the activities of two types of GHs (β-glucosidase and licheninase) in strain PS-C1 were demonstrated. These findings suggest that strain PS-C1 could be a reservoir of novel GH enzymes for lignocellulosic biomass degradation.
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Affiliation(s)
- Nurfatini Radzlin
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Jalan Bangi, Kajang 43000, Selangor, Malaysia; (N.R.); (I.I.Z.)
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Amira Suriaty Yaakop
- School of Biological Sciences, Universiti Sains Malaysia, Minden 11800, Pulau Pinang, Malaysia
| | - Kian Mau Goh
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; (K.M.G.); (K.J.L.)
| | - Kok Jun Liew
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; (K.M.G.); (K.J.L.)
| | - Iffah Izzati Zakaria
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Jalan Bangi, Kajang 43000, Selangor, Malaysia; (N.R.); (I.I.Z.)
| | - Ummirul Mukminin Kahar
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Jalan Bangi, Kajang 43000, Selangor, Malaysia; (N.R.); (I.I.Z.)
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Li Y, Ding YY, Dang YR, Bai Y, Guan L, Liu NH, Wang YZ, Kang ML, Zhang YQ, Zhang XY. Celeribacter litoreus sp. nov., isolated from intertidal sediment. Int J Syst Evol Microbiol 2022; 72. [PMID: 35156916 DOI: 10.1099/ijsem.0.005241] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-negative, aerobic, non-flagellated and rod-shaped bacterium, strain ASW11-22T, was isolated from an intertidal sediment collected from a coastal area of Qingdao, PR China. The strain grew at 15-40 °C (optimum, 37 °C), at pH 6.0-9.0 (optimum, pH 7.0) and with 0.5-10 % (w/v) NaCl (optimum, 1.0 %). It hydrolysed gelatin and aesculin but did not reduce nitrate to nitrite. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain ASW11-22T belonged to the genus Celeribacter, showing the highest sequence similarity to the type strains of Celeribacter halophilus MCCC 1A06432T (98.20 %) and Celeribacter ethanolicus NH195T (97.84 %). The genomic DNA G+C content was 59.1 mol%. The major cellular fatty acid (>10 %) of the strain was summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c) and its main polar lipids were phosphatidylglycerol and one unidentified aminolipid. The sole respiratory quinone of strain ASW11-22T was ubiquinone-10. On the basis of the polyphasic evidence presented in this paper, strain ASW11-22T represents a novel Celeribacter species, for which the name Celeribacter litoreus sp. nov. is proposed. The type strain is ASW11-22T (=KCTC 82495T=MCCC 1K05584T).
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Affiliation(s)
- Yi Li
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, PR China.,State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, PR China
| | - Yun-Yun Ding
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Yan-Ru Dang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, PR China
| | - Yun Bai
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Li Guan
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Ning-Hua Liu
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, PR China
| | - Yu-Zhu Wang
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Mei-Lin Kang
- College of Life Sciences, Shanxi Agricultural University, Taigu 030801, PR China
| | - Yu-Qiang Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, PR China
| | - Xi-Ying Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao 266237, PR China
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Zhu KL, Wang XQ, Zhang TS, Shang DD, Du ZJ. Salibaculum halophilum gen. nov., sp. nov. and Salibaculum griseiflavum sp. nov., in the family Rhodobacteraceae. Int J Syst Evol Microbiol 2021; 71. [PMID: 34170216 DOI: 10.1099/ijsem.0.004808] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two Gram-stain-negative, moderately halophilic, non-motile, rod-shaped, pale yellow, and aerobic strains, designated WDS1C4T and WDS4C29T, were isolated from a marine solar saltern in Weihai, Shandong Province, PR China. Growth of strain WDS1C4T occurred at 10-45 °C (optimum, 37 °C), with 4-16 % (w/v) NaCl (optimum, 8 %) and at pH 6.5-9.0 (optimum, pH 7.5). Growth of strain WDS4C29T occurred at 10-45 °C (optimum, 40 °C), with 2-18 % (w/v) NaCl (optimum, 6 %) and at pH 6.5-9.0 (optimum, pH 7.5). Q-10 was the sole respiratory quinone of the two strains. The major polar lipids of strains WDS1C4T and WDS4C29T were phosphatidylglycerol, phosphatidylethanolamine and phosphatidylcholine. The major cellular fatty acid in strains WDS1C4T and WDS4C29T was C18 : 1 ω7c, and the genomic DNA G+C contents of strains WDS1C4T and WDS4C29T were 67.6 and 63.3 mol%, respectively. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strains WDS1C4T and WDS4C29T were members of the family Rhodobacteraceae and showed 94.3 and 95.3 % similarities to their closest relative, Celeribacter indicus, respectively. The similarity between WDS1C4T and WDS4C29T was 97.3 %. Differential phenotypic and genotypic characteristics of the two isolates from recognized genera showed that the two strains should be classified as representing two novel species in a new genus for which the names Salibaculum halophilum gen. nov., sp. nov. (type species, type strain WDS1C4T=MCCC 1H00179T=KCTC 52542T) and Salibaculum griseiflavum sp. nov. (WDS4C29T=MCCC 1H00175T=KCTC 52541T) are proposed.
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Affiliation(s)
- Ke-Lei Zhu
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| | - Xiao-Qun Wang
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| | - Tian-Shu Zhang
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| | - Dan-Dan Shang
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
| | - Zong-Jun Du
- Marine College, Shandong University, Weihai, Shandong, 264209, PR China
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Mazioti AA, Vasquez MI, Vyrides I. Comparison of different cultures and culturing conditions for the biological deterioration of organic load from real saline bilge wastewater: microbial diversity insights and ecotoxicity assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:36506-36522. [PMID: 33709312 DOI: 10.1007/s11356-021-13153-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Bilge wastewater is a high strength, typically saline wastewater, originating from operation of ships. In this study, the treatment of real bilge wastewater was tested using pure isolated aerobic strains and mixed cultures (aerobic and anaerobic). The Chemical Oxygen Demand (COD) and ecotoxicity decrease were monitored over time, while the microbial dynamics alterations in mixed cultures were also recorded. The isolated strains Pseudodonghicola xiamenensis, Halomonas alkaliphila and Vibrio antiquaries were shown to significantly biodegrade bilge wastewater. Reasonable COD removal rates were achieved by aerobic mixed cultures (59%, 9 days), while anaerobic mixed cultures showed lower performance (34%, 51 days). The genus Pseudodonghicola was identified as dominant under aerobic conditions both in the mixed cultures and in the control sample (raw wastewater), after exposure to bilge wastewater, demonstrating natural proliferation of the genus and potential contribution to COD reduction. Biodegradation rates were higher when initial organic load was high, while the toxicity of raw wastewater partially decreased after treatment.
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Affiliation(s)
- Aikaterini A Mazioti
- Department of Chemical Engineering, Cyprus University of Technology, 30 Archibishop Kyprianos str, 3036, Limassol, Cyprus
| | - Marlen I Vasquez
- Department of Chemical Engineering, Cyprus University of Technology, 30 Archibishop Kyprianos str, 3036, Limassol, Cyprus
| | - Ioannis Vyrides
- Department of Chemical Engineering, Cyprus University of Technology, 30 Archibishop Kyprianos str, 3036, Limassol, Cyprus.
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Complete Genome Sequence of Celeribacter baekdonensis Strain LH4, a Thiosulfate-Oxidizing Alphaproteobacterial Isolate from Gulf of Mexico Continental Slope Sediments. GENOME ANNOUNCEMENTS 2018; 6:6/20/e00434-18. [PMID: 29773637 PMCID: PMC5958252 DOI: 10.1128/genomea.00434-18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report here the closed genome sequences of Celeribacter baekdonensis strain LH4 and five unnamed plasmids obtained through PacBio sequencing with 99.99% consensus concordance. The genomes contained several distinctive features not found in other published Celeribacter genomes, including the potential to aerobically degrade styrene and other phenolic compounds.
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