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Biotechnological and Ecological Potential of Micromonospora provocatoris sp. nov., a Gifted Strain Isolated from the Challenger Deep of the Mariana Trench. Mar Drugs 2021; 19:md19050243. [PMID: 33923039 PMCID: PMC8146288 DOI: 10.3390/md19050243] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 12/24/2022] Open
Abstract
A Micromonospora strain, isolate MT25T, was recovered from a sediment collected from the Challenger Deep of the Mariana Trench using a selective isolation procedure. The isolate produced two major metabolites, n-acetylglutaminyl glutamine amide and desferrioxamine B, the chemical structures of which were determined using 1D and 2D-NMR, including 1H-15N HSQC and 1H-15N HMBC 2D-NMR, as well as high resolution MS. A whole genome sequence of the strain showed the presence of ten natural product-biosynthetic gene clusters, including one responsible for the biosynthesis of desferrioxamine B. Whilst 16S rRNA gene sequence analyses showed that the isolate was most closely related to the type strain of Micromonospora chalcea, a whole genome sequence analysis revealed it to be most closely related to Micromonospora tulbaghiae 45142T. The two strains were distinguished using a combination of genomic and phenotypic features. Based on these data, it is proposed that strain MT25T (NCIMB 15245T, TISTR 2834T) be classified as Micromonospora provocatoris sp. nov. Analysis of the genome sequence of strain MT25T (genome size 6.1 Mbp) revealed genes predicted to responsible for its adaptation to extreme environmental conditions that prevail in deep-sea sediments.
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Gao H, Wang Y, Luo Q, Yang L, He X, Wu J, Kachanuban K, Wilaipun P, Zhu W, Wang Y. Bioactive Metabolites From Acid-Tolerant Fungi in a Thai Mangrove Sediment. Front Microbiol 2021; 11:609952. [PMID: 33552019 PMCID: PMC7862741 DOI: 10.3389/fmicb.2020.609952] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/23/2020] [Indexed: 01/04/2023] Open
Abstract
Despite being potentially useful extremophile resources, there have been few reports on acid-tolerant fungi and their bioactive metabolites. Acidophilic/aciduric fungi (n = 237) were isolated from Thai mangrove sediments in an acidic medium. Using fungal identification technology (including morphologic observation, chemical screening, and sequence comparisons) all the isolates were identified and 41 representative isolates were selected for analysis of the phylogenetic relationships (ITS rDNA, β-tubulin, calmodulin, and actin gene sequences). There were seven genera identified – Penicillium; Aspergillus; Talaromyces; Cladosporium; Allophoma; Alternaria; and Trichoderma – in four taxonomic orders of the phylum Ascomycota, and Penicillium, Aspergillus, and Talaromyces were the dominant genera. Acidity tolerance was evaluated and 95% of the isolates could grow under extremely acidic conditions (pH 2). Six strains were classed as acidophilic fungi that cannot survive under pH 7, all of which had an extraordinarily close genetic relationship and belonged to the genus Talaromyces. This is the first report on the acidophilic characteristics of this genus. The antimicrobial, anti-tumor, and antiviral activities of the fermentation extracts were evaluated. Nearly three-quarters of the extracts showed cytotoxic activity, while less than a quarter showed antimicrobial or anti-H1N1 activity. The typical aciduric fungus Penicillium oxalicum OUCMDZ-5207 showed similar growth but completely different chemical diversity at pH 3 and 7. The metabolites of OUCMDZ-5207 that were obtained only at pH 3 were identified as tetrahydroauroglaucin (1), flavoglaucin (2), and auroglaucin (3), among which auroglaucin showed strong selective inhibition of A549 cells with an IC50 value of 5.67 μM. These results suggest that acid stress can activate silent gene clusters to expand the diversity of secondary metabolites, and the bioprospecting of aciduric/acidophilic microorganism resources in Thai mangrove sediments may lead to the discovery of compounds with potential medicinal applications.
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Affiliation(s)
- Hai Gao
- School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yanan Wang
- School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Qiao Luo
- School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Liyuan Yang
- School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xingxing He
- School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jun Wu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | | | | | - Weiming Zhu
- School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yi Wang
- School of Medicine and Pharmacy, Ocean University of China, Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Fu G, Wang R, Ding J, Qi H, Zhao Z, Chen C, Zhang H, Xue Z, Wang J, Wu M. Micromonospora zhangzhouensis sp. nov., a Novel Actinobacterium Isolated from Mangrove Soil, Exerts a Cytotoxic Activity in vitro. Sci Rep 2020; 10:3889. [PMID: 32127574 PMCID: PMC7054543 DOI: 10.1038/s41598-020-60677-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 02/13/2020] [Indexed: 11/21/2022] Open
Abstract
A new bacterial strain, designated HM134T, was isolated from a sample of soil collected from a Chinese mangrove Avicennia marina forest. Assessed by a polyphasic approach, the taxonomy of strain HM134T was found to be associated with a range of phylogenetic and chemotaxonomic properties consistent with the genus Micromonospora. Phylogenetic analysis based on the 16s rRNA gene sequence indicated that strain HM134T formed a distinct lineage with the most closely related species, including M. rifamycinica AM105T, M. wenchangensis CCTCC AA 2012002T and M. mangrovi 2803GPT1-18T. The ANI values between strain HM134T and the reference strains ranged from 82.6% to 95.2%, which was below the standard criteria for classifying strains as the same species (96.5%). Strain HM134T and related species shared in silico dDDH similarities values below the recommended 70% cut-off for the delineation of species (range from 25.7–62.6%). The DNA G+C content of strain HM134T was 73.2 mol%. Analysis of phylogenetic, genomic, phenotypic and chemotaxonomic characteristics revealed that strain HM134T is considered to represent a novel species of the genus Micromonospora, for which the name M. zhangzhouensis sp. nov. is proposed. The extract of strain HM134T was demonstrated to exhibit cytotoxic activity against the human cancer cell lines HepG2, HCT-116 and A549. Active substance presented in the fermentation broth of strain HM134T was isolated by bioassay-guided analysis and purified afterwards. A new derivative of diterpenoid was identified through electrospray ionizing mass spectrometry (MS) and nuclear magnetic resonance (NMR). The compound showed different cytotoxic activities against cancer cells, with the highest cytotoxicity against HCT-116, corresponding to IC50 value of 38.4 μg/mL.
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Affiliation(s)
- Geyi Fu
- Ocean College, Zhejiang University, Zhoushan, China
| | - Ruijun Wang
- Ocean College, Zhejiang University, Zhoushan, China
| | - Jinglin Ding
- Zhoushan Tourism & Health College, Zhoushan, China
| | - Huan Qi
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou, China
| | - Zhe Zhao
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Can Chen
- Ocean College, Zhejiang University, Zhoushan, China
| | - Hui Zhang
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou, China.,College of Biochemical Engineering, Anhui Polytechnic University, Wuhu, China
| | - Zhenglian Xue
- College of Biochemical Engineering, Anhui Polytechnic University, Wuhu, China
| | - Jidong Wang
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou, China. .,College of Biochemical Engineering, Anhui Polytechnic University, Wuhu, China.
| | - Min Wu
- Ocean College, Zhejiang University, Zhoushan, China. .,College of Life Sciences, Zhejiang University, Hangzhou, China.
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Wang RJ, Zhang SY, Ye YH, Yu Z, Qi H, Zhang H, Xue ZL, Wang JD, Wu M. Three New Isoflavonoid Glycosides from the Mangrove-Derived Actinomycete Micromonospora aurantiaca 110B. Mar Drugs 2019; 17:md17050294. [PMID: 31108876 PMCID: PMC6562861 DOI: 10.3390/md17050294] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 05/13/2019] [Indexed: 11/16/2022] Open
Abstract
The mangrove ecosystem is a rich resource for the discovery of actinomycetes with potential applications in pharmaceutical science. Besides the genus Streptomyces, Micromonospora is also a source of new bioactive agents. We screened Micromonospora from the rhizosphere soil of mangrove plants in Fujian province, China, and 51 strains were obtained. Among them, the extracts of 12 isolates inhibited the growth of human lung carcinoma A549 cells. Strain 110B exhibited better cytotoxic activity, and its bioactive constituents were investigated. Consequently, three new isoflavonoid glycosides, daidzein-4'-(2-deoxy-α-l-fucopyranoside) (1), daidzein-7-(2-deoxy-α-l-fucopyranoside) (2), and daidzein-4',7-di-(2-deoxy-α-l-fucopyranoside) (3) were isolated from the fermentation broth of strain 110B. The structures of the new compounds were determined by spectroscopic methods, including 1D and 2D nuclear magnetic resonance (NMR) and high-resolution electrospray ionization mass spectrometry (HR-ESIMS). The result of medium-changing experiments implicated that these new compounds were microbial biotransformation products of strain M. aurantiaca 110B. The three compounds displayed moderate cytotoxic activity to the human lung carcinoma cell line A549, hepatocellular liver carcinoma cell line HepG2, and the human colon tumor cell line HCT116, whereas none of them showed antifungal or antibacterial activities.
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Affiliation(s)
- Rui-Jun Wang
- Ocean College, Zhejiang University, Zhoushan 316021, China.
| | - Shao-Yong Zhang
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou 318000, China.
| | - Yang-Hui Ye
- Ocean College, Zhejiang University, Zhoushan 316021, China.
| | - Zhen Yu
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou 318000, China.
| | - Huan Qi
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou 318000, China.
| | - Hui Zhang
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou 318000, China.
| | - Zheng-Lian Xue
- College of Biochemical Engineering, Anhui Polytechnic University, Wuhu 241000, China.
| | - Ji-Dong Wang
- College of Biochemical Engineering, Anhui Polytechnic University, Wuhu 241000, China.
- Zhejiang Key Laboratory of Antifungal Drugs, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou 318000, China.
| | - Min Wu
- Ocean College, Zhejiang University, Zhoushan 316021, China.
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Micromonospora yasonensis sp. nov., isolated from a Black Sea sediment. Antonie Van Leeuwenhoek 2016; 109:1019-28. [PMID: 27154186 DOI: 10.1007/s10482-016-0701-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022]
Abstract
A Micromonospora strain, designated DS3186(T), isolated from sediment collected from the Black Sea off the Yason Peninsula, Ordu, Turkey, was examinated using a polyphasic approach. The strain was found to have chemotaxonomic, morphological and phylogenetic properties consistent with its clasification in the genus Micromonospora. A comparative 16S rRNA gene sequence analysis showed that the strain was closely related to the type strains of Micromonospora olivasterospora (99.0 %), Micromonospora equina (98.8 %), Micromonospora rhizosphaerae (98.8 %) and Micromonospora viridifaciens (98.8 %); low levels of DNA-DNA relatednes were found between the isolate and the M. olivasterospora and M. rhizosphaerae strains. Corresponding phylogenetic analysis based on partial gyrB gene sequences showed that strain DS3186(T) formed a subclade with the type strains of Micromonospora eburnea, M. equina, Micromonospora narathiwatensis and M. viridifaciens. Strain DS3186(T) was distinguished from its close phylogenetic neighbours using a combination of chemotaxonomic, morphological and physiological properties. Consequently, it is proposed that strain DS3186(T) represents a novel Micromonospora species for which the name Micromonospora yasonensis sp. nov. is proposed. The type strain is DS3186(T) (=DSM 45980(T) = KCTC 29433(T)).
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Xie QY, Ren J, Li L, Li Y, Deng ZX, Hong K. Micromonospora mangrovi sp. nov., isolated from mangrove soil. Antonie van Leeuwenhoek 2016; 109:483-91. [PMID: 26942919 DOI: 10.1007/s10482-015-0641-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 12/21/2015] [Indexed: 01/10/2023]
Abstract
A novel actinomycete strain 2803GPT1-18(T) was isolated from a composite mangrove soil sample collected from Beihai, Guangxi province, China. Phylogenetic analysis of the 16S rRNA gene sequence of strain 2803GPT1-18(T) indicated high similarity with 'Micromonospora harpali' NEAU-JC6(T) (99.2 %), Micromonospora haikouensis 232617(T) (99.1 %), Micromonospora wenchangensis 2602GPT1-05(T) (99.1 %), Micromonospora schwarzwaldensis HKI0641(T) (99.1 %). The gyrB gene sequence analysis also indicated that strain 2803GPT1-18(T) should be assigned to the genus Micromonospora but different from any established Micromonospora species. The strain harbored meso-DAP and glycine as major cell wall amino acids, MK-10(H6) (53.5 %), MK-9(H6) (25.1 %) and MK-9(H4) (13.4 %) as predominant menaquinones. The characteristic whole cell sugars are arabinose, xylose, glucose, galactose and mannose. The polar lipid profile comprises phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylinositol and unidentified polar lipids. The major cellular fatty acids present are iso-C16:0 (44.2 %) and iso-C15:0 (12.4 %). The DNA G+C content is 71.2 mol%. Furthermore, a combination of DNA-DNA relatedness and some physiological and biochemical properties indicated that the novel strain could be readily distinguished from the closely related species. On the basis of these phenotypic and genotypic data, strain 2803GPT1-18(T) represents a novel species of the genus Micromonospora, for which the name Micromonospora mangrovi sp. nov. is proposed. The type strain is 2803GPT1-18(T) (=CCTCC AA2012012(T) = DSM45761(T)).
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Affiliation(s)
- Qing-Yi Xie
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, People's Republic of China.,Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agriculture Sciences, Haikou, 571101, People's Republic of China
| | - Jian Ren
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, People's Republic of China
| | - Lei Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, People's Republic of China
| | - Yu Li
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agriculture Sciences, Haikou, 571101, People's Republic of China
| | - Zi-Xin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, People's Republic of China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, People's Republic of China.
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Zhang L, Li L, Deng Z, Hong K. Micromonospora zhanjiangensis sp. nov., isolated from mangrove forest soil. Int J Syst Evol Microbiol 2015; 65:4880-4885. [DOI: 10.1099/ijsem.0.000667] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete, designated strain 2902at01T was isolated from soil collected at a mangrove forest in Zhanjiang, Guangdong province, China. The strain was identified using a polyphasic classification method. The 16S rRNA gene sequence of strain 2902at01T showed the highest similarity to Micromonospora equina Y22T (98.3 %) and Micromonospora pattaloongensis TJ2-2T (98.1 %). Phylogenetic analysis based on the gyrB gene sequence also clearly showed that the strain was different from any previously discovered species of the genus Micromonospora. The characteristic whole-cell sugars were ribose and xylose. The cell-wall hydrolysates contained alanine, asparagine, glycine and meso-diaminopimelic acid. MK-10(H6) and MK-10(H8) were the major menaquinones of the novel strain. The predominant fatty acids were iso-C15 : 0, anteiso-C15 : 0 and iso-C16 : 0. The characteristic polar lipids of strain 2902at01T were phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside and diphosphatidylglycerol. The DNA G+C content was 70.2 mol%. DNA–DNA hybridization data combined with other physiological and biochemical features could distinguish strain 2902at01T from the reference strains M. equina Y22T and M. pattaloongensis TJ2-2 T. On the basis of these phenotypic and genotypic data, strain 2902at01T represents a novel species of the genus Micromonospora, for which the name Micromonospora zhanjiangensis sp. nov. is proposed. The type strain is 2902at01T ( = CCTCC AA2014018T = DSM 45902T).
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Affiliation(s)
- Li Zhang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, PR China
| | - Lei Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, PR China
| | - Zixin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, PR China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, PR China
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Azman AS, Othman I, Velu SS, Chan KG, Lee LH. Mangrove rare actinobacteria: taxonomy, natural compound, and discovery of bioactivity. Front Microbiol 2015; 6:856. [PMID: 26347734 PMCID: PMC4542535 DOI: 10.3389/fmicb.2015.00856] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 08/06/2015] [Indexed: 11/13/2022] Open
Abstract
Actinobacteria are one of the most important and efficient groups of natural metabolite producers. The genus Streptomyces have been recognized as prolific producers of useful natural compounds as they produced more than half of the naturally-occurring antibiotics isolated to-date and continue as the primary source of new bioactive compounds. Lately, Streptomyces groups isolated from different environments produced the same types of compound, possibly due to frequent genetic exchanges between species. As a result, there is a dramatic increase in demand to look for new compounds which have pharmacological properties from another group of Actinobacteria, known as rare actinobacteria; which is isolated from special environments such as mangrove. Recently, mangrove ecosystem is becoming a hot spot for studies of bioactivities and the discovery of natural products. Many novel compounds discovered from the novel rare actinobacteria have been proven as potential new drugs in medical and pharmaceutical industries such as antibiotics, antimicrobials, antibacterials, anticancer, and antifungals. This review article highlights the latest studies on the discovery of natural compounds from the novel mangrove rare actinobacteria and provides insight on the impact of these findings.
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Affiliation(s)
- Adzzie-Shazleen Azman
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Sunway Campus Selangor, Malaysia
| | - Iekhsan Othman
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Sunway Campus Selangor, Malaysia
| | - Saraswati S Velu
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Sunway Campus Selangor, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Faculty of Science, Institute of Biological Sciences, University of Malaya Kuala Lumpur, Malaysia
| | - Learn-Han Lee
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Sunway Campus Selangor, Malaysia
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Yousif G, Busarakam K, Kim BY, Goodfellow M. Streptomyces mangrovi sp. nov., isolated from mangrove forest sediment. Antonie van Leeuwenhoek 2015; 108:783-91. [DOI: 10.1007/s10482-015-0533-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 07/11/2015] [Indexed: 02/06/2023]
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10
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Mullowney MW, Hwang CH, Newsome AG, Wei X, Tanouye U, Wan B, Carlson S, Barranis NJ, Ó hAinmhire E, Chen WL, Krishnamoorthy K, White J, Blair R, Lee H, Burdette JE, Rathod PK, Parish T, Cho S, Franzblau SG, Murphy BT. Diaza-anthracene Antibiotics from a Freshwater-Derived Actinomycete with Selective Antibacterial Activity toward Mycobacterium tuberculosis. ACS Infect Dis 2015; 1:168-174. [PMID: 26594660 DOI: 10.1021/acsinfecdis.5b00005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Multidrug- and extensively drug-resistant strains of Mycobacterium tuberculosis are resistant to first- and second-line drug regimens and resulted in 210,000 fatalities in 2013. In the current study, we screened a library of aquatic bacterial natural product fractions for their ability to inhibit this pathogen. A fraction from a Lake Michigan bacterium exhibited significant inhibitory activity, from which we characterized novel diazaquinomycins H and J. This antibiotic class displayed an in vitro activity profile similar or superior to clinically used anti-tuberculosis agents and maintained this potency against a panel of drug-resistant M. tuberculosis strains. Importantly, these are among the only freshwater-derived actinomycete bacterial metabolites described to date. Further in vitro profiling against a broad panel of bacteria indicated that this antibiotic class selectively targets M. tuberculosis. Additionally, in the case of this pathogen we present evidence counter to previous reports that claim the diazaquinomycins target thymidylate synthase in Gram-positive bacteria. Thus, we establish freshwater environments as potential sources for novel antibiotic leads and present the diazaquinomycins as potent and selective inhibitors of M. tuberculosis.
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Affiliation(s)
- Michael W. Mullowney
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Chang Hwa Hwang
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Andrew G. Newsome
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Xiaomei Wei
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Urszula Tanouye
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Baojie Wan
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Skylar Carlson
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Nanthida Joy Barranis
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 865), Room 335, Chicago, Illinois 60612-7231, United States
| | - Eoghainín Ó hAinmhire
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Center for Pharmaceutical Biotechnology,
College of Pharmacy, University of Illinois at Chicago, Molecular Biology Research
Building, 900 South Ashland Avenue (MC 870), Room
3150, Chicago, Illinois 60607-7173, United States
| | - Wei-Lun Chen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
| | - Kalyanaraman Krishnamoorthy
- Department
of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - John White
- Department
of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Rachel Blair
- TB Discovery Research, Infectious Disease Research Institute, 1616
Eastlake Avenue East, Suite 400, Seattle, Washington 98102, United States
| | - Hyunwoo Lee
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 865), Room 335, Chicago, Illinois 60612-7231, United States
| | - Joanna E. Burdette
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Center for Pharmaceutical Biotechnology,
College of Pharmacy, University of Illinois at Chicago, Molecular Biology Research
Building, 900 South Ashland Avenue (MC 870), Room
3150, Chicago, Illinois 60607-7173, United States
| | - Pradipsinh K. Rathod
- Department
of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Tanya Parish
- TB Discovery Research, Infectious Disease Research Institute, 1616
Eastlake Avenue East, Suite 400, Seattle, Washington 98102, United States
| | - Sanghyun Cho
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Scott G. Franzblau
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 964), Room 412, Chicago, Illinois 60612-7231, United States
| | - Brian T. Murphy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (MC 781), Room 539, Chicago, Illinois 60612-7231, United States
- Center for Pharmaceutical Biotechnology,
College of Pharmacy, University of Illinois at Chicago, Molecular Biology Research
Building, 900 South Ashland Avenue (MC 870), Room
3150, Chicago, Illinois 60607-7173, United States
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11
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Micromonospora jinlongensis sp. nov., isolated from muddy soil in China and emended description of the genus Micromonospora. Antonie van Leeuwenhoek 2013; 105:307-15. [DOI: 10.1007/s10482-013-0074-3] [Citation(s) in RCA: 147] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/08/2013] [Indexed: 11/27/2022]
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12
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Subramani R, Aalbersberg W. Culturable rare Actinomycetes: diversity, isolation and marine natural product discovery. Appl Microbiol Biotechnol 2013; 97:9291-321. [DOI: 10.1007/s00253-013-5229-7] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/29/2013] [Accepted: 09/02/2013] [Indexed: 11/30/2022]
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13
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Ren J, Li L, Wei B, Tang YL, Deng ZX, Sun M, Hong K. Micromonospora wenchangensis sp. nov., isolated from mangrove soil. Int J Syst Evol Microbiol 2012. [PMID: 23178730 DOI: 10.1099/ijs.0.045476-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An actinomycete, strain 2602GPT1-05(T), was isolated from a composite mangrove soil sample collected from Wenchang, Hainan province, China. Strain 2602GPT1-05(T) showed closest 16S rRNA gene sequence similarity to Micromonospora haikouensis 232617(T) (99.05 %), and phylogenetically clustered with Micromonospora haikouensis 232617(T), Micromonospora matsumotoense IMSNU 22003(T) (98.7 %) and Micromonospora rifamycinica AM105(T) (98.6 %) based on the 16S rRNA and gyrB gene sequence phylogenetic analysis. The strain harboured meso-DAP and glycine as major cell-wall amino acids, and MK-10(H6) and MK-9(H6) as predominant menaquinones. The characteristic whole-cell sugars were xylose, arabinose, glucose and galactose. The polar lipid profile comprised phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylinositol, phosphatidylglycerol, phosphatidylinositol mannosides, unknown phospholipid and an unknown phosphoglycolipid. The major cellular fatty acids were C18 : 1ω9c, iso-C15 : 0, 10-methyl C18 : 0 (tuberculostearic acid), C16 : 0, C18 : 0 and iso-C16 : 0. The DNA G+C content was 71.7 mol%. Furthermore, some physiological and biochemical properties and low DNA-DNA relatedness values enabled the strain to be differentiated from members of closely related species. On the basis of these phenotypic, genotypic and chemotaxonomic data, strain 2602GPT1-05(T) represents a novel species of the genus Micromonospora, for which the name Micromonospora wenchangensis sp. nov. is proposed. The type strain is 2602GPT1-05(T) ( = CCTCC AA 2012002(T) = DSM 45709(T)).
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Affiliation(s)
- Jian Ren
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.,Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Lei Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Bin Wei
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Yi-Li Tang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Zi-Xin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Ming Sun
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
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Li L, Tang YL, Wei B, Xie QY, Deng Z, Hong K. Micromonospora sonneratiae sp. nov., isolated from a root of Sonneratia apetala. Int J Syst Evol Microbiol 2012. [PMID: 23178729 DOI: 10.1099/ijs.0.043570-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel endophytic actinomycete, strain 274745(T), was isolated from a root of Sonneratia apetala collected in a mangrove forest in Sanya, Hainan province, China. The 16S rRNA gene sequence of strain 274745(T) showed the greatest similarity to Micromonospora pattaloongensis TJ2-2(T) (98.3 %). Phylogenetic analysis based on the gyrB gene also supported the close relationship of these two strains. The predominant menaquinone was MK-10(H8) and the major fatty acids were iso-C15 : 0, C17 : 0 and anteiso-C15 : 0. The characteristic whole-cell sugars were xylose and mannose. The cell wall contained meso-diaminopimelic acid and glycine. The polar lipid profile mainly comprised phosphatidylethanolamine, phosphatidylinositol and diphosphatidylglycerol. The DNA G+C content was 71.6 mol%. Furthermore, a combination of DNA-DNA relatedness and some physiological and biochemical properties indicated that the novel strain could be readily distinguished from the closest phylogenetic relatives. On the basis of these phenotypic and genotypic data, strain 274745(T) represents a novel species of the genus Micromonospora, for which the name Micromonospora sonneratiae sp. nov. is proposed. The type strain is 274745(T) ( = CCTCC AA 2012003(T) = DSM 45704(T)).
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Affiliation(s)
- Lei Li
- College of Agronomy, Hainan University, Haikou 570228, PR China.,Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Yi-Li Tang
- College of Agronomy, Hainan University, Haikou 570228, PR China.,Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Bin Wei
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Qing-Yi Xie
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, PR China
| | - Zixin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
| | - Kui Hong
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, PR China.,College of Agronomy, Hainan University, Haikou 570228, PR China.,Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, PR China
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