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Chavarría-Pizarro L, Núñez-Montero K, Gutiérrez-Araya M, Watson-Guido W, Rivera-Méndez W, Pizarro-Cerdá J. Novel strains of Actinobacteria associated with neotropical social wasps (Vespidae; Polistinae, Epiponini) with antimicrobial potential for natural product discovery. FEMS MICROBES 2024; 5:xtae005. [PMID: 38476864 PMCID: PMC10929769 DOI: 10.1093/femsmc/xtae005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Antimicrobial resistance has been considered a public health threat. The World Health Organization has warned about the urgency of detecting new antibiotics from novel sources. Social insects could be crucial in the search for new antibiotic metabolites, as some of them survive in places that favor parasite development. Recent studies have shown the potential of social insects to produce antimicrobial metabolites (e.g. ants, bees, and termites). However, most groups of social wasps remain unstudied. Here, we explored whether Actinobacteria are associated with workers in the Neotropical Social Wasps (Epiponini) of Costa Rica and evaluated their putative inhibitory activity against other bacteria. Most isolated strains (67%) have antagonistic effects, mainly against Bacillus thuringensis and Escherichia coli ATCC 25992. Based on genome analysis, some inhibitory Actinobacteria showed biosynthetic gene clusters (BGCs) related to the production of antimicrobial molecules such as Selvamycin, Piericidin A1, and Nystatin. The Actinobacteria could be associated with social wasps to produce antimicrobial compounds. For these reasons, we speculate that Actinobacteria associated with social wasps could be a novel source of antimicrobial compounds, mainly against Gram-negative bacteria.
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Affiliation(s)
- Laura Chavarría-Pizarro
- Instituto Tecnológico de Costa Rica, Escuela de Biología-Centro de Investigación en Biotecnología, Calle 15, Avenida 14, 159-7050 Cartago, Costa Rica
| | - Kattia Núñez-Montero
- Instituto Tecnológico de Costa Rica, Escuela de Biología-Centro de Investigación en Biotecnología, Calle 15, Avenida 14, 159-7050 Cartago, Costa Rica
- Instituto de Ciencias Aplicadas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Avenida Alemania 1090, 4810101 Temuco, Chile
| | - Mariela Gutiérrez-Araya
- Instituto Tecnológico de Costa Rica, Escuela de Biología-Centro de Investigación en Biotecnología, Calle 15, Avenida 14, 159-7050 Cartago, Costa Rica
| | - William Watson-Guido
- Instituto Tecnológico de Costa Rica, Escuela de Biología-Centro de Investigación en Biotecnología, Calle 15, Avenida 14, 159-7050 Cartago, Costa Rica
| | - William Rivera-Méndez
- Instituto Tecnológico de Costa Rica, Escuela de Biología-Centro de Investigación en Biotecnología, Calle 15, Avenida 14, 159-7050 Cartago, Costa Rica
| | - Javier Pizarro-Cerdá
- Institut Pasteur, Université Paris Cité, CNRS UMR6047, Yersinia Research Unit - Institut Pasteur 28, rue du Docteur Roux - 75724 Paris Cedex 15, France
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In vitro propagation and secondary metabolite production in Gloriosa superba L. Appl Microbiol Biotechnol 2022; 106:5399-5414. [PMID: 35941253 DOI: 10.1007/s00253-022-12094-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/02/2022]
Abstract
Gloriosa superba L., commonly known as "gloriosa lily," "glory lily," and "tiger claw," is a perennial climber in the Liliaceae family. This plant is used in African and Southeast Asian cultures as an ayurvedic medicinal herb to treat various health conditions. Its main bioactive component is colchicine, which is responsible for medicinal efficacies as well as poisonous properties of the plant. A high market demand, imprudent harvesting of G. superba from natural habitat, and low seed setting have led scientists to explore micropropagation techniques and in vitro optimization of its phytochemicals. Plant growth regulators have been used to induce callus, root, and shoot organogenesis, and somatic embryogenesis in vitro. This review is aimed at presenting information regarding the occurrence, taxonomic description, phytochemistry, micropropagation, in vitro secondary metabolite, and synthetic seed production. The data collected from the existing literature, along with an analysis of individual study details, outcomes, and variations in the reports, will contribute to the development of biotechnological strategies for conservation and mass propagation of G. superba. KEY POINTS: • Latest literature on micropropagation of Gloriosa superba. • Biotechnological production and optimization of colchicine. • Regeneration, somatic embryogenesis, and synthetic seed production.
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Caffrey P, Hogan M, Song Y. New Glycosylated Polyene Macrolides: Refining the Ore from Genome Mining. Antibiotics (Basel) 2022; 11:334. [PMID: 35326797 PMCID: PMC8944477 DOI: 10.3390/antibiotics11030334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/25/2022] [Accepted: 03/02/2022] [Indexed: 01/26/2023] Open
Abstract
Glycosylated polyene macrolides include effective antifungal agents, such as pimaricin, nystatin, candicidin, and amphotericin B. For the treatment of systemic mycoses, amphotericin B has been described as a gold-standard antibiotic because of its potent activity against a broad spectrum of fungal pathogens, which do not readily become resistant. However, amphotericin B has severe toxic side effects, and the development of safer alternatives remains an important objective. One approach towards obtaining such compounds is to discover new related natural products. Advances in next-generation sequencing have delivered a wealth of microbial genome sequences containing polyene biosynthetic gene clusters. These typically encode a modular polyketide synthase that catalyzes the assembly of the aglycone core, a cytochrome P450 that oxidizes a methyl branch to a carboxyl group, and additional enzymes for synthesis and attachment of a single mycosamine sugar residue. In some cases, further P450s catalyze epoxide formation or hydroxylation within the macrolactone. Bioinformatic analyses have identified over 250 of these clusters. Some are predicted to encode potentially valuable new polyenes that have not been uncovered by traditional screening methods. Recent experimental studies have characterized polyenes with new polyketide backbones, previously unknown late oxygenations, and additional sugar residues that increase water-solubility and reduce hemolytic activity. Here we review these studies and assess how this new knowledge can help to prioritize silent polyene clusters for further investigation. This approach should improve the chances of discovering better antifungal antibiotics.
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Affiliation(s)
- Patrick Caffrey
- School of Biomolecular and Biomedical Science, University College Dublin, D04 V1W8 Dublin, Ireland; (M.H.); (Y.S.)
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4
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Zhou Y, Pei S, Xie F, Gu L, Zhang G. Saccharopolyspora coralli sp. nov. a novel actinobacterium isolated from the stony coral Porites. Int J Syst Evol Microbiol 2020; 70:3241-3246. [PMID: 32375933 DOI: 10.1099/ijsem.0.004162] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-positive, aerobic, non-motile actinobacterium, designated strain E2AT, was isolated from a coral sample and examined using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain E2AT formed a distinct phyletic lineage in the genus Saccharopolyspora and was closely related to S. cavernae CCTCC AA 2012022T (96.4 %) and S. lacisalsi CCTCC AA 2010012T (95.3 %). The isolate grew at 15-35 °C, pH 5-12 and in the presence of 1-16 % (w/v) NaCl. The cell-wall diamino acid was meso-DAP. Major fatty acids identified were iso-C15 : 0, iso-C16 : 0 and C17 : 1 ω8c. The predominant menaquinone was MK-9(H4). The polar lipids detected were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylmethylethanolamine, one unidentified glycolipid, one unidentified phospholipid and one unidentified aminolipid. The genomic DNA G+C content was 68.6 mol%. Based on the data from the polyphasic taxonomic study reported here, strain E2AT represents a novel species within the genus Saccharopolyspora, for which the name Saccharopolyspora coralli sp. nov. is proposed. The type strain is E2AT=(JCM 31844T=MCCC 1A17150T).
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Affiliation(s)
- Yuan Zhou
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, Fujian, PR China
| | - Shengxiang Pei
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, Fujian, PR China
| | - Fuquan Xie
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, Fujian, PR China
| | - Li Gu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, Fujian, PR China
| | - Gaiyun Zhang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, Fujian, PR China
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5
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Isolation, plant growth-promoting traits, antagonistic effects on clinical and plant pathogenic organisms and identification of actinomycetes from olive rhizosphere. Microb Pathog 2020; 143:104134. [PMID: 32169494 DOI: 10.1016/j.micpath.2020.104134] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 01/25/2020] [Accepted: 03/06/2020] [Indexed: 11/23/2022]
Abstract
Soil actinomycetes are a highly common group of bacteria and frequently studied as having secondary metabolites in the potential of producing the most preferred antagonistic content. Considering the continuous variation in soil structure, there is a potential for encountering different organisms. Almost all of antibiotic contents are produced by these bacteria and their importance increase. In this study, eleven different actinomycetes strain were isolated from the rhizosphere of olive trees investigated for their plant growth-promoting (PGP) traits including ammonia production, indole-3-acetic acid production, phosphate solubilization, and siderophore production with antagonistic activities against a set of pathogenic bacteria, fungi, and yeasts. All actinomycetes were identified according to 16S rRNA regions were recognized in four different Streptomyces species but according to fatty acid analysis, there would be at least six different organisms. The potential for antagonistic and plant growth-promoting traits of olive tree rhizosphere actinomycetes were a promising tool for agricultural applications and clinical antibiotic resistance. Differentiation of organisms with the antagonism of pathogenic activities and PGP features could be a definitive method for future studies.
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6
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Sayed A, Abdel‐Wahab N, Hassan H, Abdelmohsen U. Saccharopolyspora
: an underexplored source for bioactive natural products. J Appl Microbiol 2019; 128:314-329. [DOI: 10.1111/jam.14360] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/19/2019] [Accepted: 06/12/2019] [Indexed: 11/27/2022]
Affiliation(s)
- A.M. Sayed
- Department of Pharmacognosy, Faculty of Pharmacy Nahda University Beni‐Suef Egypt
| | - N.M. Abdel‐Wahab
- Department of Pharmacognosy, Faculty of Pharmacy Minia University Minia Egypt
| | - H.M. Hassan
- Department of Pharmacognosy, Faculty of Pharmacy Beni‐Suef University Beni‐Suef Egypt
| | - U.R. Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy Minia University Minia Egypt
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7
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Souza DT, Silva FSPD, Silva LJD, Crevelin EJ, Moraes LAB, Zucchi TD, Melo IS. Saccharopolyspora spongiae sp. nov., a novel actinomycete isolated from the marine sponge Scopalina ruetzleri (Wiedenmayer, 1977). Int J Syst Evol Microbiol 2017. [PMID: 28632117 DOI: 10.1099/ijsem.0.001912] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A novel marine actinomycete, designated strain CMAA 1452T, was isolated from the sponge Scopalina ruetzleri collected from Saint Peter and Saint Paul Archipelago, in Brazil, and subjected to a polyphasic taxonomic investigation. The organism formed a distinct phyletic line in the Saccharopolyspora 16S rRNA gene tree and had chemotaxonomic and morphological properties consistent with its classification in this genus. It was found to be closely related to Saccharopolyspora dendranthemae KLBMP 1305T (99.5% 16S rRNA gene sequence similarity) and shared similarities of 99.3, 99.2 and 99.0 % with 'Saccharopolyspora endophytica' YIM 61095, Saccharopolyspora tripterygii YIM 65359T and 'Saccharopolyspora pathumthaniensis' S582, respectively. DNA-DNA relatedness values between the isolate and its closest phylogenetic neighbours, namely S. dendranthemae KLBMP 1305T, 'S. endophytica' YIM 61095 and S. tripterygii YIM 65359T, were 53.5, 25.8 and 53.2 %, respectively. Strain CMAA 1452T was also distinguished from the type strains of these species using a range of phenotypic features. On the basis of these results, it is proposed that strain CMAA 1452T (=DSM 103218T=NRRL B-65384T) merits recognition as the type strain of a novel Saccharopolyspora species, Saccharopolyspora spongiae sp. nov.
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Affiliation(s)
- Danilo Tosta Souza
- College of Agriculture 'Luiz de Queiroz', University of São Paulo, Av. Pádua Dias, 11, 13418900, Piracicaba, SP, Brazil.,Environmental Microbiology Laboratory, Embrapa Environment, Rodovia SP 340 - Km 127,5, 13820-000, Jaguariúna, SP, Brazil
| | - Fábio Sérgio Paulino da Silva
- College of Agriculture 'Luiz de Queiroz', University of São Paulo, Av. Pádua Dias, 11, 13418900, Piracicaba, SP, Brazil.,Environmental Microbiology Laboratory, Embrapa Environment, Rodovia SP 340 - Km 127,5, 13820-000, Jaguariúna, SP, Brazil
| | - Leonardo José da Silva
- College of Agriculture 'Luiz de Queiroz', University of São Paulo, Av. Pádua Dias, 11, 13418900, Piracicaba, SP, Brazil.,Environmental Microbiology Laboratory, Embrapa Environment, Rodovia SP 340 - Km 127,5, 13820-000, Jaguariúna, SP, Brazil
| | - Eduardo José Crevelin
- Department of Chemistry - FFCLRP, University of São Paulo, Av. Bandeirantes, 14100-000, Ribeirão Preto, SP, Brazil
| | - Luiz Alberto Beraldo Moraes
- Department of Chemistry - FFCLRP, University of São Paulo, Av. Bandeirantes, 14100-000, Ribeirão Preto, SP, Brazil
| | - Tiago Domingues Zucchi
- Pesquisa & Desenvolvimento, Agrivalle, Av. Tranquillo Giannini, 1050, 13329-600 Salto, SP, Brazil
| | - Itamar Soares Melo
- Environmental Microbiology Laboratory, Embrapa Environment, Rodovia SP 340 - Km 127,5, 13820-000, Jaguariúna, SP, Brazil
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8
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Nalini MS, Prakash HS. Diversity and bioprospecting of actinomycete endophytes from the medicinal plants. Lett Appl Microbiol 2017; 64:261-270. [PMID: 28107573 DOI: 10.1111/lam.12718] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 11/21/2016] [Accepted: 01/10/2017] [Indexed: 11/28/2022]
Abstract
The endophytic actinomycetes constitute one of the fascinating group of microorganisms associated with a wide range of plant species. The diversity of actinomycetes in plants and their tissue parts is a matter of debate as no consensus are derived between individual studies. Nevertheless, their diversity correlates with the occurrence in plant species harboured in unique regions of biologically diverse areas called "hot spots." Recent advances in the isolation techniques have facilitated the isolation of rare taxa from these environments. The biosynthetic ability of the endophytic actinomycetes has proven beyond doubt that these organisms have the potential to synthesize an array of compounds with novelty in structure and bioactivity and as a result are preferred in the natural product screening programs. In the years to come, the scientific world may await to discover many more novel actinomycete taxa with metabolic diversity and applications in therapeutics. SIGNIFICANCE AND IMPACT OF THE STUDY "Endophytes" - the microbes residing in the living tissues of plants are virtually omnipresent. Actinomycete endophytes are diverse in distribution within plant tissues, especially in the roots as they have a close association with the rhizhosphere. An introspection into diversity studies necessitates careful sampling, analysis, and isolation data from the biodiverse and nonbiodiverse regions represented by unique environments. The key to the recovery of novel species and their bioprospection lies in these regions.
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Affiliation(s)
- M S Nalini
- Department of Studies in Botany, University of Mysore, Mysore, India
| | - H S Prakash
- Department of Studies in Biotechnology, University of Mysore, Mysore, India
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9
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Xia ZF, Luo XX, Wan CX, Zhang LL. Saccharopolyspora aidingensis sp. nov., an actinomycete isolated from a salt lake. Int J Syst Evol Microbiol 2017; 67:687-691. [DOI: 10.1099/ijsem.0.001696] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Zhan-Feng Xia
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin/College of Life Science, Tarim University, Alar 843300, PR China
| | - Xiao-Xia Luo
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin/College of Life Science, Tarim University, Alar 843300, PR China
| | - Chuan-Xing Wan
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin/College of Life Science, Tarim University, Alar 843300, PR China
| | - Li-Li Zhang
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin/College of Life Science, Tarim University, Alar 843300, PR China
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10
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Chen J, Xia H, Dang F, Xu Q, Li W, Qin Z. Characterization of the chromosomal integration of Saccharopolyspora plasmid pCM32 and its application to improve production of spinosyn in Saccharopolyspora spinosa. Appl Microbiol Biotechnol 2015; 99:10141-9. [DOI: 10.1007/s00253-015-6871-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/19/2015] [Accepted: 07/23/2015] [Indexed: 10/23/2022]
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11
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Hamedi J, Mohammadipanah F, Panahi HKS. Biotechnological Exploitation of Actinobacterial Members. SUSTAINABLE DEVELOPMENT AND BIODIVERSITY 2015. [DOI: 10.1007/978-3-319-14595-2_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Hamedi J, Mohammadipanah F. Biotechnological application and taxonomical distribution of plant growth promoting actinobacteria. J Ind Microbiol Biotechnol 2014; 42:157-71. [PMID: 25410828 DOI: 10.1007/s10295-014-1537-x] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 11/06/2014] [Indexed: 11/25/2022]
Abstract
Plant growth promoting (PGP) bacteria are involved in various interactions known to affect plant fitness and soil quality, thereby increasing the productivity of agriculture and stability of soil. Although the potential of actinobacteria in antibiotic production is well-investigated, their capacity to enhance plant growth is not fully surveyed. Due to the following justifications, PGP actinobacteria (PGPA) can be considered as a more promising taxonomical group of PGP bacteria: (1) high numbers of actinobacteria per gram of soil and their filamentous nature, (2) genome dedicated to the secondary metabolite production (~5 to 10 %) is distinctively more than that of other bacteria and (3) number of plant growth promoter genera reported from actinobacteria is 1.3 times higher than that of other bacteria. Mechanisms by which PGPA contribute to the plant growth by association are: (a) enhancing nutrients availability, (b) regulation of plant metabolism, (c) decreasing environmental stress, (d) control of phytopathogens and (e) improvement of soil texture. Taxonomical and chemical diversity of PGPA and their biotechnological application along with their associated challenges are summarized in this paper.
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Affiliation(s)
- Javad Hamedi
- Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, 14155-6455, Tehran, Iran,
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13
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Isolation and characterization of oxalotrophic bacteria from tropical soils. Arch Microbiol 2014; 197:65-77. [PMID: 25381572 DOI: 10.1007/s00203-014-1055-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 08/12/2014] [Accepted: 10/24/2014] [Indexed: 10/24/2022]
Abstract
The oxalate-carbonate pathway (OCP) is a biogeochemical set of reactions that involves the conversion of atmospheric CO2 fixed by plants into biomass and, after the biological recycling of calcium oxalate by fungi and bacteria, into calcium carbonate in terrestrial environments. Oxalotrophic bacteria are a key element of this process because of their ability to oxidize calcium oxalate. However, the diversity and alternative carbon sources of oxalotrophs participating to this pathway are unknown. Therefore, the aim of this study was to characterize oxalotrophic bacteria in tropical OCP systems from Bolivia, India, and Cameroon. Ninety-five oxalotrophic strains were isolated and identified by sequencing of the 16S rRNA gene. Four genera corresponded to newly reported oxalotrophs (Afipia, Polaromonas, Humihabitans, and Psychrobacillus). Ten strains were selected to perform a more detailed characterization. Kinetic curves and microcalorimetry analyses showed that Variovorax soli C18 has the highest oxalate consumption rate with 0.240 µM h(-1). Moreover, Streptomyces achromogenes A9 displays the highest metabolic plasticity. This study highlights the phylogenetic and physiological diversity of oxalotrophic bacteria in tropical soils under the influence of the oxalate-carbonate pathway.
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Lv LL, Zhang YF, Xia ZF, Zhang JJ, Zhang LL. Saccharopolyspora halotolerans sp. nov., a halophilic actinomycete isolated from a hypersaline lake. Int J Syst Evol Microbiol 2014; 64:3532-3537. [DOI: 10.1099/ijs.0.063792-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete strain, designated TRM 45123T, was isolated from a hypersaline habitat in Xinjiang Province (40° 20′ N 90° 49′ E), north-west China. The isolate was characterized using a polyphasic approach. 16S rRNA gene sequence analysis indicated that strain TRM 45123T belonged to the genus
Saccharopolyspora
and was closely related to
Saccharopolyspora gloriosae
(96.7 % similarity). The G+C content of the DNA was 69.07 mol%. The isolate contained meso-diaminopimelic acid as the diagnostic diamino acid, and arabinose and ribose as the major whole-cell sugars. The diagnostic phospholipids were phosphatidylethanolamine, phosphatidylcholine and phosphatidylglycerol. The predominant menaquinone was MK-9(H4). The major fatty acids were iso-C16 : 0, anteiso-C17 : 0, iso-C15 : 0 and anteiso-C15 : 0. On the basis of the evidence from this polyphasic study, a novel species, Saccharopolyspora
halotolerans sp. nov., is proposed. The type strain of Saccharopolyspora
halotolerans is TRM 45123T ( = CCTCC AA 2013006T = DSM 45990T).
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Affiliation(s)
- Ling-Ling Lv
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar 843300, PR China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yue-Feng Zhang
- College of Life Science, Tarim University, Alar 843300, PR China
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar 843300, PR China
| | - Zhan-Feng Xia
- College of Life Science, Tarim University, Alar 843300, PR China
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar 843300, PR China
| | - Jing-Jing Zhang
- College of Life Science, Tarim University, Alar 843300, PR China
| | - Li-Li Zhang
- College of Life Science, Tarim University, Alar 843300, PR China
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production & Construction Corps, Tarim University, Alar 843300, PR China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
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Vaddavalli R, Peddi S, Kothagauni SY, Begum Z, Gaddam B, Periketi M, Linga VR. Saccharopolyspora indica sp. nov., an actinomycete isolated from the rhizosphere of Callistemon citrinus (Curtis). Int J Syst Evol Microbiol 2014; 64:1559-1565. [DOI: 10.1099/ijs.0.057539-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete strain, designated VRC122T, was isolated from a Callistemon citrinus rhizosphere sample collected from New Delhi, India, and its taxonomic status was determined by using a polyphasic approach. Strain VRC122T was a Gram-stain-positive, aerobic, non-motile, non-acid–alcohol-fast strain. Phylogenetic analysis based on 16S rRNA gene sequences showed the strain was placed in a well-separated sub-branch within the genus
Saccharopolyspora
. The highest levels of 16S rRNA gene sequence similarity were found with
Saccharopolyspora hirsuta subsp. kobensis
JCM 9109T (98.71 %),
Saccharopolyspora antimicrobica
I05-00074T (98.69 %) and
Saccharopolyspora jiangxiensis
W12T (98.66 %); 16S rRNA gene sequence similarities with type strains of all other species of the genus
Saccharopolyspora
were below 98 %. Chemosystematic studies revealed that it contained meso-diaminopimelic acid. Arabinose and galactose were the predominant whole-cell sugars. Diagnostic polar lipids were diphosphatidylglycerol, phosphatidylinositol and phosphatidylcholine. MK-9(H6) was the predominant menaquinone. C14 : 0, C16 : 0, iso-C15 : 0, iso-C16 : 0, iso-C17 : 0, anteiso-C15 : 0, anteiso-C17 : 0, C17 : 0 cyclo and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) were the major cellular fatty acids. The G+C content of the genomic DNA was 69.5 mol%. The results of DNA–DNA hybridization (30 %, 22 % and 25 %, respectively) with type strains of the above-mentioned species, in combination with differences in physiological and biochemical data supported that strain VRC122T represents a novel species of the genus
Saccharopolyspora
, for which the name Saccharopolyspora indica sp. nov., is proposed. The type strain is VRC122T ( = KCTC 29208T = MTCC 11564T = MCC 2206T = ATCC BAA-2551T).
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Affiliation(s)
- Radha Vaddavalli
- Department of Botany, Osmania University, Hyderabad-500007, Andhra Pradesh, India
| | - Sneha Peddi
- Department of pharmacy, Aditya Pharmaceutical College, Kakinada-533437, India
| | | | - Zareena Begum
- Center for Cellular and Molecular Biology, Uppal Road, Hyderabad-500007, Andhra Pradesh, India
| | | | | | - Venkateswar Rao Linga
- Department of Microbiology, Osmania University, Hyderabad-500007, Andhra Pradesh, India
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Saccharopolyspora cavernae sp. nov., a novel actinomycete isolated from the Swallow Cave in Yunnan, south-west China. Antonie van Leeuwenhoek 2013; 104:837-43. [DOI: 10.1007/s10482-013-9996-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 08/05/2013] [Indexed: 11/28/2022]
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17
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Miqueletto PB, Andreote FD, Dias ACF, Ferreira JC, dos Santos Neto EV, de Oliveira VM. Cultivation-independent methods applied to the microbial prospection of oil and gas in soil from a sedimentary basin in Brazil. AMB Express 2011; 1:35. [PMID: 22018208 PMCID: PMC3282667 DOI: 10.1186/2191-0855-1-35] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 10/22/2011] [Indexed: 11/10/2022] Open
Abstract
The upper parts of oil field structures may leak gas which is supposed to be indirectly detected by the soil bacterial populations. Such microorganisms are capable of consuming this gas, supporting the Microbial Prospection of Oil and Gas (MPOG) methodology. The goal of the present work was to characterize microbial communities involved in short-chain alkane metabolism, namely methane, ethane and propane, in samples from a petroliferous (P) soil through clone libraries of the 16S rRNA gene of the Domains Bacteria and Archaea and the catabolic gene coding for the soluble di-iron monooxygenase (SDIMO) enzyme alpha subunit. The microbial community presented high abundance of the bacterial phylum Actinobacteria, which represented 53% of total clones, and the Crenarchaeota group I.1b from the Archaea Domain. The analysis of the catabolic genes revealed the occurrence of seven Operational Protein Families (OPF) and higher richness (Chao = 7; Ace = 7.5) and diversity (Shannon = 1.09) in P soil when compared with a non-petroliferous (Np) soil (Chao = 2; Ace = 0, Shannon = 0.44). Clones related to the ethene monooxygenase (EtnC) and methane monooxygenase (MmoX) coding genes occurred only in P soil, which also presented higher levels of methane and lower levels of ethane and propane, revealed by short-chain hydrocarbon measures. Real-time PCR results suggested that the SDIMO genes occur in very low abundance in the soil samples under study. Further investigations on SDIMOs genes in natural environments are necessary to unravel their still uncharted diversity and to provide reliable tools for the prospection of degrading populations.
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Affiliation(s)
- Paula B Miqueletto
- Division of Microbial Resources, Research Center for Chemistry, Biology and Agriculture (CPQBA), UNICAMP, CP 6171, CEP 13081-970, Campinas, SP, Brazil
- Biomedical Sciences Institute (ICB-IV), University of São Paulo, São Paulo, Brazil
| | - Fernando D Andreote
- Departament of Soil Sciences, ESALQ, University of São Paulo, CP 09, CEP: 13418-900, Piracicaba, SP, Brazil
| | - Armando CF Dias
- Departament of Soil Sciences, ESALQ, University of São Paulo, CP 09, CEP: 13418-900, Piracicaba, SP, Brazil
| | - Justo C Ferreira
- PETROBRAS R&D Center, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, CEP 21949-900, Brazil
| | - Eugênio V dos Santos Neto
- PETROBRAS R&D Center, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ, CEP 21949-900, Brazil
| | - Valéria M de Oliveira
- Division of Microbial Resources, Research Center for Chemistry, Biology and Agriculture (CPQBA), UNICAMP, CP 6171, CEP 13081-970, Campinas, SP, Brazil
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18
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Guan TW, Wu N, Xia ZF, Ruan JS, Zhang XP, Huang Y, Zhang LL. Saccharopolyspora lacisalsi sp. nov., a novel halophilic actinomycete isolated from a salt lake in Xinjiang, China. Extremophiles 2011; 15:373-8. [DOI: 10.1007/s00792-011-0369-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Accepted: 03/14/2011] [Indexed: 11/30/2022]
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19
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Biodiversity, bioactive natural products and biotechnological potential of plant-associated endophytic actinobacteria. Appl Microbiol Biotechnol 2010; 89:457-73. [DOI: 10.1007/s00253-010-2923-6] [Citation(s) in RCA: 197] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Revised: 09/24/2010] [Accepted: 09/26/2010] [Indexed: 01/23/2023]
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