Natural Products from Actinobacteria Associated with Fungus-Growing
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Uncovering Production of Specialized Metabolites by Streptomyces Argillaceus: Activation of Cryptic Biosynthesis Gene Clusters U
RESEARCH ARTICLE Uncovering production of specialized metabolites by Streptomyces argillaceus: Activation of cryptic biosynthesis gene clusters using nutritional and genetic approaches Adriana Becerril1,2, Susana A lvarez1, Alfredo F. Braña1,2, Sergio Rico3, Margarita DõÂaz3, a1111111111 RamoÂn I. SantamarõÂa3, Jose A. Salas1,2, Carmen MeÂndez1,2* a1111111111 a1111111111 1 Departamento de BiologõÂa Funcional e Instituto Universitario de OncologõÂa del Principado de Asturias (I.U. O.P.A), Universidad de Oviedo, Oviedo, Spain, 2 Instituto de InvestigacioÂn Sanitaria de Asturias (ISPA), a1111111111 Oviedo, Spain, 3 Departamento de MicrobiologõÂa y GeneÂtica, Instituto de BiologõÂa Funcional y GenoÂmica, a1111111111 Consejo Superior de Investigaciones CientõÂficas (CSIC)/Universidad de Salamanca, Salamanca, Spain * [email protected] OPEN ACCESS Abstract Citation: Becerril A, AÂlvarez S, Braña AF, Rico S, DõÂaz M, SantamarõÂa RI, et al. (2018) Uncovering Sequencing of Streptomyces genomes has revealed they harbor a high number of biosyn- production of specialized metabolites by thesis gene cluster (BGC), which uncovered their enormous potentiality to encode special- Streptomyces argillaceus: Activation of cryptic ized metabolites. However, these metabolites are not usually produced under standard biosynthesis gene clusters using nutritional and genetic approaches. PLoS ONE 13(5): e0198145. laboratory conditions. In this manuscript we report the activation of BGCs for antimycins, https://doi.org/10.1371/journal.pone.0198145 carotenoids, germicidins and desferrioxamine compounds in Streptomyces argillaceus, and Editor: Marie-Joelle Virolle, Universite Paris-Sud, the identification of the encoded compounds. This was achieved by following different strat- FRANCE egies, including changing the growth conditions, heterologous expression of the cluster and Received: March 23, 2018 inactivating the adpAa or overexpressing the abrC3 global regulatory genes. -
Chapter 1.0: Introduction
CHAPTER 1.0: INTRODUCTION 1.1 Why study Antarctica? The Antarctic includes some of the most extreme terrestrial environments by very low temperature, frequent freeze-thaw and wet-dry cycles, low and transient precipitation, reduced humidity, rapid drainage and limited organic nutrients which are considered as unfavorable condition (Yergeau et al., 2006). Located in the Earth‟s south hemisphere, Antarctica has received considerable amount of attention due to its untapped resources. Renowned for its cold, harsh conditions, there is an abundance of microbial life which has undergone their own adaption and evolutionary processes to survive. Since, Antarctic microbial habitats have remained relatively conserved for many years; there are unique opportunities for studying microbial evolution (Vincent, 2000). Besides that, presence of psychrophiles and other extermophiles in the environment are interesting specimens of nature‟s wonder. Psychrophilic enzymes produced have high potential in biotechnology for example the conservation of energy by reducing the need of heat treatment, the application of eurythermal polar cyanobacteria for wastewater treatment in cold climates (Tang et al., 1997) and the integration of proteases, lipases and cellulases into detergents to improve its mode of action in cold water. 1.2 Antarctic microorganisms Although bacterial researches have been conducted since early 1900s by Ekelof (Boyd and Boyd, 1962), little is known about the presence and characteristics of bacteria in the Antarctica. Microorganisms dominate Antarctic biology compare to other continent (Friedmann, 1993) as well as they are fundamental to the functioning of Antarctic ecosystems. Baseline knowledge of prokaryotic biodiversity in Antarctica is still limited (Bohannan 1 and Hughes, 2003). Among these microorganisms, bacteria are an important part of the soil. -
In Vitro Antagonistic Activity of Soil Streptomyces Collinus Dpr20 Against Bacterial Pathogens
IN VITRO ANTAGONISTIC ACTIVITY OF SOIL STREPTOMYCES COLLINUS DPR20 AGAINST BACTERIAL PATHOGENS Pachaiyappan Saravana Kumar1, Michael Gabriel Paulraj1, Savarimuthu Ignacimuthu1,3*, Naif Abdullah Al-Dhabi2, Devanathan Sukumaran4 Address(es): Dr. Savarimuthu Ignacimuthu, 1Division of Microbiology, Entomology Research Institute, Loyola College, Chennai, India-600 034. 2Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. 3International Scientific Program Partnership (ISPP), King Saud University, Riyadh11451, Saudi Arabia 4Vector Management Division, Defence Research and Development Establishment, Gwalior, Madhya Pradesh, India. *Corresponding author: [email protected] doi: 10.15414/jmbfs.2017/18.7.3.317-324 ARTICLE INFO ABSTRACT Received 20. 9. 2017 Actinomycetes are one of the most important groups that produce useful secondary metabolites. They play a great role in pharmaceutical Revised 2. 11. 2017 and industrial uses. The search for antibiotic producing soil actinomycetes to inhibit the growth of pathogenic microorganisms has Accepted 6. 11. 2017 become widespread due to the need for newer antibiotics. The present work was aimed to isolate soil actinomycetes from pinus tree Published 1. 12. 2017 rhizosphere from Doddabetta, Western Ghats, Tamil Nadu, India. Thirty one actinomycetes were isolated based on heterogeneity and stability in subculturing; they were screened against 5 Gram positive and 7 Gram negative bacteria in an in vitro antagonism assay. In the preliminary screening, out of 31 isolates, 12.09% showed good antagonistic activity; 25.08% showed moderate activity; 19.35% Regular article showed weak activity and 41.93% showed no activity against the tested bacteria. Among the isolates tested, DPR20 showed good antibacterial activity against both Gram positive and Gram negative bacteria. -
Kaistella Soli Sp. Nov., Isolated from Oil-Contaminated Soil
A001 Kaistella soli sp. nov., Isolated from Oil-contaminated Soil Dhiraj Kumar Chaudhary1, Ram Hari Dahal2, Dong-Uk Kim3, and Yongseok Hong1* 1Department of Environmental Engineering, Korea University Sejong Campus, 2Department of Microbiology, School of Medicine, Kyungpook National University, 3Department of Biological Science, College of Science and Engineering, Sangji University A light yellow-colored, rod-shaped bacterial strain DKR-2T was isolated from oil-contaminated experimental soil. The strain was Gram-stain-negative, catalase and oxidase positive, and grew at temperature 10–35°C, at pH 6.0– 9.0, and at 0–1.5% (w/v) NaCl concentration. The phylogenetic analysis and 16S rRNA gene sequence analysis suggested that the strain DKR-2T was affiliated to the genus Kaistella, with the closest species being Kaistella haifensis H38T (97.6% sequence similarity). The chemotaxonomic profiles revealed the presence of phosphatidylethanolamine as the principal polar lipids;iso-C15:0, antiso-C15:0, and summed feature 9 (iso-C17:1 9c and/or C16:0 10-methyl) as the main fatty acids; and menaquinone-6 as a major menaquinone. The DNA G + C content was 39.5%. In addition, the average nucleotide identity (ANIu) and in silico DNA–DNA hybridization (dDDH) relatedness values between strain DKR-2T and phylogenically closest members were below the threshold values for species delineation. The polyphasic taxonomic features illustrated in this study clearly implied that strain DKR-2T represents a novel species in the genus Kaistella, for which the name Kaistella soli sp. nov. is proposed with the type strain DKR-2T (= KACC 22070T = NBRC 114725T). [This study was supported by Creative Challenge Research Foundation Support Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2020R1I1A1A01071920).] A002 Chitinibacter bivalviorum sp. -
Actinobacteria, <I>Streptomyces</I
Journal of Microbiology Research 2018, 8(4): 97-102 DOI: 10.5923/j.microbiology.20180804.02 Molecular Characterization and Antimicrobial Efficacy of Streptomyces gancidicus Strain SN-3 from Soil Samples Sreenivasa Nayaka1,*, Chethan J. Dandin2, Girish Babu K.1, Ravichandra Hospet1, Pallavi S. S.1, Bidhayak Chakaraborty1 1Department of P.G. Studies Botany, Karnatak University, Dharwad, Karnataka, India 2Department of P.G. Studies in Microbiology and Biotechnology, Karnatak University, Dharwad, Karnataka, India Abstract The present work was carried out for four Actinomycetes SN-1, SN-2, SN-3 and SN-4 isolated from soil samples of agricultural fields near University of Agricultural Sciences, Dharwad, Karnataka. Isolates were subjected for the screening of antimicrobial analysis by the cross streak method. Among four isolates the strain SN-3 has shown good antimicrobial activity. Morphological characterization by scanning electron microscopic analysis followed by physiological and biochemical characterizations were performed. The potent strain was identified by the 16S rRNA gene sequence (987 bp) and a phylogenetic tree was correlated with other species Streptomyces spp and finally, the strain was confirmed and identified as Streptomyces gancidicus SN-3. Keywords Actinobacteria, Streptomyces gancidicus, Antimicrobial, 16S rRNA long and it may fragment into smaller units. Identification of 1. Introduction Actinomycetes filamentous structure using microscopic and scanning electron microscope is not enough further, the Soil considered as a good source of potent biochemical methods help in identification of isolates for microorganisms and is an excellent resource for genus level. Presently with advanced technology, the many identification and characterization of novel antibiotic researchers performing 16S rRNA sequence analysis of the producing microorganisms among which Actinomycetes are Actinomycetes isolates for the species level identification known for their potential features in the production of [6,7]. -
Tenggerimyces Flavus Sp. Nov., Isolated from Soil in a Karst Cave, and Emended Description of the Genus Tenggerimyces
International Journal of Systematic and Evolutionary Microbiology (2016), 66, 1499–1505 DOI 10.1099/ijsem.0.000908 Tenggerimyces flavus sp. nov., isolated from soil in a karst cave, and emended description of the genus Tenggerimyces Xiao-Jun Li,1,2 Su-Juan Dai,1 Shao-Wei Liu,1 Jia-Meng Liu,1 Li Chen,3 Lin Hu3 and Cheng-Hang Sun1 Correspondence 1Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Cheng-Hang Sun Medical College, Beijing 100050, PR China [email protected] or 2College of laboratory Medical Science, Hebei North University, Zhangjiakou 075000, PR China [email protected] 3Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China A novel actinomycete, designated strain S6R2A4-9T, was isolated from a soil sample collected from a karst cave in Henan Province, China, and subjected to a polyphasic taxonomic study. This isolate grew optimally at 25–28 8C, pH 6.5–8.0 and in the absence of NaCl. The substrate mycelium of the isolate was well developed with irregular branches. Aerial mycelium fragmented into long, rod-shaped elements. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain S6R2A4-9T resided in the cluster of the genus Tenggerimyces within the family Nocardioidaceae and shared the highest 16S rRNA gene sequence similarity (98.98 %) with Tenggerimyces mesophilus I12A-02601T. The G+C content of the genomic DNA was 67.0 mol%. The strain contained glucose, ribose and xylose in its whole-cell hydrolysates. Strain S6R2A4-9T possessed a novel variation of peptidoglycan derived from the type A1c meso-Dpm-direct. -
Improved Taxonomy of the Genus Streptomyces
UNIVERSITEIT GENT Faculteit Wetenschappen Vakgroep Biochemie, Fysiologie & Microbiologie Laboratorium voor Microbiologie Improved taxonomy of the genus Streptomyces Benjamin LANOOT Scriptie voorgelegd tot het behalen van de graad van Doctor in de Wetenschappen (Biochemie) Promotor: Prof. Dr. ir. J. Swings Co-promotor: Dr. M. Vancanneyt Academiejaar 2004-2005 FACULTY OF SCIENCES ____________________________________________________________ DEPARTMENT OF BIOCHEMISTRY, PHYSIOLOGY AND MICROBIOLOGY UNIVERSITEIT LABORATORY OF MICROBIOLOGY GENT IMPROVED TAXONOMY OF THE GENUS STREPTOMYCES DISSERTATION Submitted in fulfilment of the requirements for the degree of Doctor (Ph D) in Sciences, Biochemistry December 2004 Benjamin LANOOT Promotor: Prof. Dr. ir. J. SWINGS Co-promotor: Dr. M. VANCANNEYT 1: Aerial mycelium of a Streptomyces sp. © Michel Cavatta, Academy de Lyon, France 1 2 2: Streptomyces coelicolor colonies © John Innes Centre 3: Blue haloes surrounding Streptomyces coelicolor colonies are secreted 3 4 actinorhodin (an antibiotic) © John Innes Centre 4: Antibiotic droplet secreted by Streptomyces coelicolor © John Innes Centre PhD thesis, Faculty of Sciences, Ghent University, Ghent, Belgium. Publicly defended in Ghent, December 9th, 2004. Examination Commission PROF. DR. J. VAN BEEUMEN (ACTING CHAIRMAN) Faculty of Sciences, University of Ghent PROF. DR. IR. J. SWINGS (PROMOTOR) Faculty of Sciences, University of Ghent DR. M. VANCANNEYT (CO-PROMOTOR) Faculty of Sciences, University of Ghent PROF. DR. M. GOODFELLOW Department of Agricultural & Environmental Science University of Newcastle, UK PROF. Z. LIU Institute of Microbiology Chinese Academy of Sciences, Beijing, P.R. China DR. D. LABEDA United States Department of Agriculture National Center for Agricultural Utilization Research Peoria, IL, USA PROF. DR. R.M. KROPPENSTEDT Deutsche Sammlung von Mikroorganismen & Zellkulturen (DSMZ) Braunschweig, Germany DR. -
Evolution of the Streptomycin and Viomycin Biosynthetic Clusters and Resistance Genes
University of Warwick institutional repository: http://go.warwick.ac.uk/wrap A Thesis Submitted for the Degree of PhD at the University of Warwick http://go.warwick.ac.uk/wrap/2773 This thesis is made available online and is protected by original copyright. Please scroll down to view the document itself. Please refer to the repository record for this item for information to help you to cite it. Our policy information is available from the repository home page. Evolution of the streptomycin and viomycin biosynthetic clusters and resistance genes Paris Laskaris, B.Sc. (Hons.) A thesis submitted to the University of Warwick for the degree of Doctor of Philosophy. Department of Biological Sciences, University of Warwick, Coventry, CV4 7AL September 2009 Contents List of Figures ........................................................................................................................ vi List of Tables ....................................................................................................................... xvi Abbreviations ........................................................................................................................ xx Acknowledgements .............................................................................................................. xxi Declaration .......................................................................................................................... xxii Abstract ............................................................................................................................. -
(Phaseolus Vulgaris) in Native and Agricultural Soils from Colombia Juan E
Pérez-Jaramillo et al. Microbiome (2019) 7:114 https://doi.org/10.1186/s40168-019-0727-1 RESEARCH Open Access Deciphering rhizosphere microbiome assembly of wild and modern common bean (Phaseolus vulgaris) in native and agricultural soils from Colombia Juan E. Pérez-Jaramillo1,2,3, Mattias de Hollander1, Camilo A. Ramírez3, Rodrigo Mendes4, Jos M. Raaijmakers1,2* and Víctor J. Carrión1,2 Abstract Background: Modern crop varieties are typically cultivated in agriculturally well-managed soils far from the centers of origin of their wild relatives. How this habitat expansion impacted plant microbiome assembly is not well understood. Results: Here, we investigated if the transition from a native to an agricultural soil affected rhizobacterial community assembly of wild and modern common bean (Phaseolus vulgaris) and if this led to a depletion of rhizobacterial diversity. The impact of the bean genotype on rhizobacterial assembly was more prominent in the agricultural soil than in the native soil. Although only 113 operational taxonomic units (OTUs) out of a total of 15,925 were shared by all eight bean accessions grown in native and agricultural soils, this core microbiome represented a large fraction (25.9%) of all sequence reads. More OTUs were exclusively found in the rhizosphere of common bean in the agricultural soil as compared to the native soil and in the rhizosphere of modern bean accessions as compared to wild accessions. Co-occurrence analyses further showed a reduction in complexity of the interactions in the bean rhizosphere microbiome in the agricultural soil as compared to the native soil. Conclusions: Collectively, these results suggest that habitat expansion of common bean from its native soil environment to an agricultural context had an unexpected overall positive effect on rhizobacterial diversity and led to a stronger bean genotype-dependent effect on rhizosphere microbiome assembly. -
A Novel Hydroxamic Acid-Containing Antibiotic Produced by a Saharan Soil-Living Streptomyces Strain A
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Open Archive Toulouse Archive Ouverte . . . . A novel hydroxamic acid-containing antibiotic produced by Streptomyces a Saharan soil-living strain 1,2 1 3 1 4 4 5 1 A. Yekkour , A. Meklat , C. Bijani , O. Toumatia , R. Errakhi , A. Lebrihi , F. Mathieu , A. Zitouni 1 and N. Sabaou 1 Laboratoire de Biologie des Systemes Microbiens (LBSM), Ecole Normale Superieure de Kouba, Alger, Algeria 2 Centre de Recherche Polyvalent, Institut National de la Recherche Agronomique d’Algerie, Alger, Algeria 3 Laboratoire de Chimie de Coordination (LCC), CNRS, Universite de Toulouse, UPS, INPT, Toulouse, France 4 Universite Moulay Ismail, Meknes, Morocco 5 Universite de Toulouse, Laboratoire de Genie Chimique UMR 5503 (CNRS/INPT/UPS), INP de Toulouse/ENSAT, Castanet-Tolosan Cedex, France Significance and Impact of the Study: This study presents the isolation of a Streptomyces strain, named WAB9, from a Saharan soil in Algeria. This strain was found to produce a new hydroxamic acid-contain- ing molecule with interesting antimicrobial activities towards various multidrug-resistant micro-organ- isms. Although hydroxamic acid-containing molecules are known to exhibit low toxicities in general, only real evaluations of the toxicity levels could decide on the applications for which this new molecule is potentially most appropriate. Thus, this article provides a new framework of research. Keywords Abstract antimicrobial activity, hydroxamic acid, Streptomyces, structure elucidation, During screening for potentially antimicrobial actinobacteria, a highly taxonomy. antagonistic strain, designated WAB9, was isolated from a Saharan soil of Algeria. A polyphasic approach characterized the strain taxonomically as a Correspondence member of the genus Streptomyces. -
Polyphasic Classification of the Gifted Natural Product Producer Streptomyces
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Digital.CSIC © Van der Aart, L.T., Nouioui, I., Kloosterman, A., Igual, J.M., Willemse, J., Goodfellow, M., van Wezel, J.P. 2019. The definitive peer reviewed, edited version of this article is published in International Journal of Systematic and Evolutionary Microbiology, 69, 4, 2019, http://dx.doi.org/10.1099/ijsem.0.003215 Polyphasic classification of the gifted natural product producer Streptomyces roseifaciens sp. nov. Lizah T. van der Aart 1, Imen Nouioui 2, Alexander Kloosterman 1, José Mariano Ingual 3, Joost Willemse 1, Michael Goodfellow 2, *, Gilles P. van Wezel 1,4 *. 1 Molecular Biotechnology, Institute of Biology, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands 2 School of Natural and Environmental Sciences, University of Newcastle, Newcastle upon Tyne NE1 7RU, UK. 3 Instituto de Recursos Naturales y Agrobiologia de Salamanca, Consejo Superior de Investigaciones Cientificas (IRNASACSIC), c/Cordel de Merinas 40-52, 37008 Salamanca, Spain 4: Department of Microbial Ecology, Netherlands, Institute of Ecology (NIOO-KNAW) Droevendaalsteeg 10, Wageningen 6708 PB, The Netherlands *Corresponding authors. Michael Goodfellow: [email protected], Tel: +44 191 2087706. Gilles van Wezel: Email: [email protected], Tel: +31 715274310. Accession for the full genome assembly: GCF_001445655.1 1 Abstract A polyphasic study was designed to establish the taxonomic status of a Streptomyces strain isolated from soil from the QinLing Mountains, Shaanxi Province, China, and found to be the source of known and new specialized metabolites. Strain MBT76 T was found to have chemotaxonomic, cultural and morphological properties consistent with its classification in the genus Streptomyces . -
Molecular Identification of Str a Gene Responsible for Streptomycin Production from Streptomyces Isolates
The Pharma Innovation Journal 2020; 9(1): 18-24 ISSN (E): 2277- 7695 ISSN (P): 2349-8242 NAAS Rating: 5.03 Molecular Identification of Str A gene responsible for TPI 2020; 9(1): 18-24 © 2020 TPI streptomycin production from Streptomyces isolates www.thepharmajournal.com Received: 11-11-2019 Accepted: 15-12-2019 Bayader Abdel Mohsen, Mohsen Hashim Risan and Asma G Oraibi Bayader Abdel Mohsen College of Biotechnology, Al- Abstract Nahrain University, Iraq The present study was aimed for molecular identification of Str A gene from Streptomyces isolates. Twenty-four isolates were identified as Streptomyces sp. based on their morphological and biochemical Mohsen Hashim Risan characteristics. Twelve isolates were positive in the PCR technique. Performing PCR reactions using College of Biotechnology, Al- primer pair on DNA. The results of Str A gene detection clarify that Two isolate of Streptomyces isolates Nahrain University, Iraq gave a positive result and carrying Str gene, while 10 of Streptomyces isolates were lacking the gene. Be1 and B3-4 isolates gave DNA bands 700 bp in length. The results indicated that the Be1 and B3-4 isolates Asma G Oraibi are very close to the species Streptomyces griseus responsible for producing antibiotic streptomycin. College of Biotechnology, Al- Nahrain University, Iraq Keywords: Bacteria, Streptomyces, Str A, streptomycin, Iraq Introduction The largest genus of Actinomycetes and the type genus of the family is Streptomycetaceae (Kampfer, 2006, Al-Rubaye et al., 2018a, Risan et al., 2019) [13, 2, 28]. Over 600 species of [11] Streptomyces bacteria have been described (Euzeby, 2008) . As with the other Actinomyces, Streptomyces are Gram-positive, and have genomes with high guanine and cytosine content.