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Valdez-Nuñez LF, Rivera-Jacinto MA. Thermophilic bacteria from Peruvian hot springs with high potential application in environmental biotechnology. ENVIRONMENTAL TECHNOLOGY 2024; 45:1420-1435. [PMID: 36356186 DOI: 10.1080/09593330.2022.2143293] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Hot springs are extreme environments in which well-adapted microorganisms with biotechnological applications can thrive naturally. These thermal environments across Peruvian territory have, until now, remained poorly investigated. In this study, two hot springs, El Tragadero and Quilcate, located in Cajamarca (Peru) were selected in order to investigate the biotechnological potential of indigenous thermophilic bacteria. Enrichment and isolation processes were carried out using microbial mats, sediments, biofilms, and plastic polymers as samples. Screening for biosurfactants and siderophores production, as well as for polyethylene terephthalate (PET) hydrolysis was done using culture-dependent techniques. After molecular identification, Bacillus was found as the most abundant genus in both hot springs. Bacillus velezensis was found producing biosurfactants under high-level temperature. Anoxybacillus species (A. salavatliensis and A. gonensis) are here reported as siderophore-producing bacteria for the first time. Additionally, Brevibacillus and the less-known bacterium Tistrella mobilis were found demonstrating PET hydrolysis activity. Our study provides the first report of thermophilic bacteria isolated from Peruvian hot springs with biotechnological potential for the bioremediation of oil-, metal- and plastic-polluted environments.
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Affiliation(s)
- Luis Felipe Valdez-Nuñez
- Laboratorio de Microbiología, Departamento de Ciencias Biológicas, Universidad Nacional de Cajamarca, Cajamarca, Peru
| | - Marco A Rivera-Jacinto
- Laboratorio de Microbiología, Departamento de Ciencias Biológicas, Universidad Nacional de Cajamarca, Cajamarca, Peru
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Ishaq K, Shah AH, Fariq A, Rasheed S, Jannat S. Diversity of culturable thermophilic bacteria from Tata Pani hotspring of Kotli Azad Jammu and Kashmir. Biodivers Data J 2023; 11:e99224. [PMID: 38327337 PMCID: PMC10848829 DOI: 10.3897/bdj.11.e99224] [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: 12/27/2022] [Accepted: 02/28/2023] [Indexed: 03/17/2023] Open
Abstract
Hot water springs are unique areas populated by mesophiles, thermotolerant and hyperthermophiles. They are the source of diversity of thermophiles, mainly belonging to archaea and bacteria domains. The diversity of thermophiles gives an outline of the huge biological potential that can be exploited for industrial applications.To this end, this study was aimed to isolate and characterise the unexplored thermophilic microorganisms from hot water spring in Tatapani, Tehsil & District Kotli AJK, Pakistan. Around 10 bacterial isolates were identified using morphological, biochemical, physiological and molecular attributes. Sequencing of the 16S rDNA gene of the isolates followed by BLAST search revealed that the strain MBT008 has 100% similarity with Anoxybacilluskamchatkensis. MBT012 showed 99.57% similarity with A.mongoliensis, MBT014 was affiliated with A.tengchongensis with 99.43% similarity, MBT009 showed 99.83% homology with A.gonensis and MBT018, 98.70% similarity with A.karvacharensis. The presence of all this microbial diversity in one common source is of immense importance related to envioronmental and industrial aspects in general and extraction of thermostable enzymes from these thermophiles specifically opens new horizons in the field of industrial biotechnology. These thermophiles are revealing new capabilities and are being manipulated by biotechnologists in utilizing them in different unique ways.
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Affiliation(s)
- Kazima Ishaq
- Department of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and Kashmir, Kotli, PakistanDepartment of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and KashmirKotliPakistan
| | - Asad Hussain Shah
- Senior Research Fellow, Faculty of Biology Medicine and Health The University of Manchester The Michael Smith Building Oxford Road Manchester M13 9PT, Manchester, United KingdomSenior Research Fellow, Faculty of Biology Medicine and Health The University of Manchester The Michael Smith Building Oxford Road Manchester M13 9PTManchesterUnited Kingdom
| | - Anila Fariq
- Department of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and Kashmir, Kotli, PakistanDepartment of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and KashmirKotliPakistan
| | - Sajida Rasheed
- Department of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and Kashmir, Kotli, PakistanDepartment of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and KashmirKotliPakistan
| | - Sammyia Jannat
- Department of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and Kashmir, Kotli, PakistanDepartment of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli Azad Jammu and KashmirKotliPakistan
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Masi C, Tebiso A, Selva Kumar K. Isolation and characterization of potential multiple extracellular enzyme-producing bacteria from waste dumping area in Addis Ababa. Heliyon 2023; 9:e12645. [PMID: 36793964 PMCID: PMC9922826 DOI: 10.1016/j.heliyon.2022.e12645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/01/2022] [Accepted: 12/20/2022] [Indexed: 01/06/2023] Open
Abstract
Extremozymes are innovative and robust biocatalysts produced by various microorganisms from harsh environments. As thermophilic organisms can only develop in a few places, studying them in geothermal environments has provided new insights into the origins and evolution of early life and access to significant bio-resources with potential biotechnology applications. The work aimed to isolate and identify likely multiple extracellular enzyme-producing thermophilic bacteria from an Addis Ababa landfill (Qoshe). The streaking approach was used to purify 102 isolates acquired by serial dilution and spread plate method. The isolates were morphologically and biochemically characterized. Thirty-five cellulases, 22 amylase, 17 protease, and nine lipase-producing bacteria were identified using primary screening methods. Further secondary screening using Strain safety evaluation; two bacterial strains (TQ11 and TQ46) were identified. Based on morphological and biochemical tests, they were found to be gram-positive and rod-shaped. Furthermore, molecular identification and phylogenic analysis of selected promising isolates confirmed the identity of the isolates, Paenibacillus dendritiformis (TQ11) and Anoxybacillus flavithermus (TQ46). The results indicated that, multiple extracellular enzyme-producing thermophilic bacteria isolated from a waste dumping area in Addis Ababa offer useful features for environmental sustainability in a wide range of industrial applications due to their biodegradability and specialized stability under extreme conditions, increased raw material utilization, and decreased waste.
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Affiliation(s)
- Chandran Masi
- Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia,Bioprocess and Biotechnology Center of Excellence, Addis Ababa Science and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia,Corresponding author. Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia.
| | - Abel Tebiso
- Department of Biotechnology, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, P.O. Box 16417, Addis Ababa, Ethiopia
| | - K.V. Selva Kumar
- School of Chemical and Bioengineering, Dire Dawa University Institute of Technology, Dire Dawa, Ethiopia
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Rivas-Párraga R, Izquierdo A, Sánchez K, Bolaños-Guerrón D, Alfaro-Núñez A. Identification and phylogenetic characterization based on DNA sequences from RNA ribosomal genes of thermophilic microorganisms in a high elevation Andean tropical geothermal spring. BIONATURA 2022. [DOI: 10.21931/rb/2022.07.02.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Several microorganisms can survive in harsh acid environments in geothermal springs at high temperatures across the Equatorial Andes Mountains. However, little is known about their physiological features and phylogenetic composition. Here we identify thermophilic microorganisms (bacteria, fungi, and microalgae) hosted in an almost unexplored geothermal spring (known as “Aguas Hediondas”). The phylogeny of the cultures was determined by analyzing physiological features and DNA sequences of PCR products for 16S rRNA, ITS, and 23S rRNA genes. Twenty pure cultures were isolated from the samples, including 17 for bacteria, one for cyanobacterium, one for eukaryotic microalgae, and one for fungus. Most bacterial strains were gram-positive, spore-forming, and bacilli (Bacillus). Cyanobacterium strain belonged to Chroococcidiopsis and the eukaryotic microalgae to Chlorophyta. The unique fungal strain isolated was closely related to T. duponti. Through our study, isolated thermophilic bacteria, microalgae and fungi from the “Aguas Hediondas” geothermal spring were characterized and identified. This study represents one of the first extensive molecular characterizations of extremophile microbes in the Tropical Equatorial Andes.
Keywords. microbial diversity; DNA markers; extremophiles; phylogenetics
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Affiliation(s)
- Roque Rivas-Párraga
- Life science and Agriculture Department. Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador
| | - Andrés Izquierdo
- Life science and Agriculture Department. Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador Centro de Nanociencia y Nanotecnología (CENCINAT), Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, P.O. Box 171-5-231B, Sangolquí, Ecuador Ecuador Grupo de Investigación en Microbiología y Ambiente (GIMA), Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador
| | - Karen Sánchez
- School of Biological Sciences and Engineering, Yachay Tech University, San Miguel de Urcuqui, Ecuador
| | - Darío Bolaños-Guerrón
- Department of Earth Science and Constructions, Geographical and Environmental Engineering, Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador Centro de Nanociencia y Nanotecnología (CENCINAT), Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, P.O. Box 171-5-231B, Sangolquí, Ecuador Ecuador
| | - Alonzo Alfaro-Núñez
- Clinical Biochemistry Department, Næstved Hospital, Ringstegade 57a, 4700 Næstved, Denmark 5 Section for Evolutionary Genomics, GLOBE Institute, University of Copenhagen, Øster Farimagsgade 5, 1353 Copenhagen K, Denmark
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Bacterial diversity and competitors for degradation of hazardous oil refining waste under selective pressures of temperature and oxygen. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128201. [PMID: 34999399 DOI: 10.1016/j.jhazmat.2021.128201] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 02/08/2023]
Abstract
Oil refining waste (ORW) contains complex, hazardous, and refractory components, causing more severe long-term environmental pollution than petroleum. Here, ORW was used to simulate the accelerated domestication of bacteria from oily sludges and polymer-flooding wastewater, and the effects of key factors, oxygen and temperature, on the ORW degradation were evaluated. Bacterial communities acclimated respectively in 30/60 °C, aerobic/anaerobic conditions showed differentiated degradation rates of ORW, ranging from 5% to 34%. High-throughput amplicon sequencing and ORW component analysis revealed significant correlation between bacterial diversity/biomass and degradation efficiency/substrate preference. Under mesophilic and oxygen-rich condition, the high biomass and abundant biodiversity with diverse genes and pathways for petroleum hydrocarbons degradation, effectively promoted the rapid and multi-component degradation of ORW. While under harsh conditions, a few dominant genera still contributed to ORW degradation, although the biodiversity was severely restricted. The typical dominant facultative anaerobes Bacillus (up to 99.8% abundance anaerobically) and Geobacillus (up to 99.9% abundance aerobically and anaerobically) showed oxygen-independent sustainable degradation ability and broad-spectrum of temperature adaptability, making them promising and competitive bioremediation candidates for future application. Our findings provide important strategies for practical bioremediation of varied environments polluted by hazardous ORW.
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Benammar L, İnan Bektaş K, Menasria T, Beldüz AO, Güler HI, Bedaida IK, Gonzalez JM, Ayachi A. Diversity and enzymatic potential of thermophilic bacteria associated with terrestrial hot springs in Algeria. Braz J Microbiol 2020; 51:1987-2007. [PMID: 32959204 DOI: 10.1007/s42770-020-00376-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/03/2020] [Indexed: 11/30/2022] Open
Abstract
This study aims to determine the diversity of culturable thermophilic bacteria isolated from eight terrestrial hot springs in Northeastern of Algeria using the conventional methods, SDS-PAGE fingerprinting of whole-cell proteins and 16S rRNA gene sequencing. In addition, their hydrolytic enzyme activities were also investigated. A total of 293 strains were isolated from the hot springs' water and sediment using different culture media. Overall, five distinct bacterial groups were characterized by whole-cell protein pattern analysis. Based on the 16S rRNA gene sequencing of 100 selected strains, the isolates were assigned to the following three major phyla: Firmicutes (93%), Deinococcus-Thermus (5%), and Actinobacteria (2%), which included 27 distinct species belonging to 12 different phylotypes, Aeribacillus, Aneurinibacillus, Anoxybacillus, Bacillus, Brevibacillus, Geobacillus, Laceyella, Meiothermus, Saccharomonospora, Thermoactinomyces, Thermobifida, and Thermus. The screening for nine extracellular enzymes showed that 65.87% of the isolates presented at least five types of enzyme activities, and 6.48% of strains combined all tested enzymes (amylase, cellulase, pectinase, esculinase, protease, gelatinase, lipase, lecithinase, and nuclease). It was found that Bacillus, Anoxybacillus, Aeribacillus, and Aneurinibacillus were the genera showing the highest activities. Likewise, the study showed an abundant and diverse thermophilic community with novel taxa presenting a promising source of thermozymes with important biotechnological applications. This study showed that a combined identification method using SDS-PAGE profiles of whole-cell proteins and subsequent 16S rRNA gene sequence analysis could successfully differentiate thermophilic bacteria from Algerian hot springs.
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Affiliation(s)
- L Benammar
- Department of Microbiology and Biochemistry, Faculty of Natural and Life Sciences, University of Batna 2, 05078, Batna, Algeria.
- Molecular Biology Research Laboratory, Department of Biology, Faculty of Science, Karadeniz Technical University, 61080, Trabzon, Turkey.
- Bacteriology Laboratory, Veterinary and Agricultural Sciences Institute, Department of Veterinary Sciences, University of Batna 1, 05000, Batna, Algeria.
| | - K İnan Bektaş
- Department of Molecular Biology and Genetics, Faculty of Science, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - T Menasria
- Department of Applied Biology, Faculty of Exact Sciences and Natural and Life Sciences, University of Larbi Tebessi, 12002, Tebessa, Algeria.
| | - A O Beldüz
- Molecular Biology Research Laboratory, Department of Biology, Faculty of Science, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - H I Güler
- Department of Molecular Biology and Genetics, Faculty of Science, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - I K Bedaida
- Department of Microbiology and Biochemistry, Faculty of Natural and Life Sciences, University of Batna 2, 05078, Batna, Algeria
| | - J M Gonzalez
- Spanish National Research Council Seville (CSIC), Institute of Natural Resources and Agrobiology of Seville (IRNAS), Seville, Spain
| | - A Ayachi
- Bacteriology Laboratory, Veterinary and Agricultural Sciences Institute, Department of Veterinary Sciences, University of Batna 1, 05000, Batna, Algeria
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Marine bacteria associated with shallow hydrothermal systems in the Gulf of California with the capacity to produce biofilm inhibiting compounds. Arch Microbiol 2020; 202:1477-1488. [DOI: 10.1007/s00203-020-01851-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 12/09/2019] [Accepted: 03/01/2020] [Indexed: 12/28/2022]
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A combined approach of 16S rRNA and a functional marker gene, soxB to reveal the diversity of sulphur-oxidising bacteria in thermal springs. Arch Microbiol 2019; 201:951-967. [PMID: 31025055 DOI: 10.1007/s00203-019-01666-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 03/05/2019] [Accepted: 04/19/2019] [Indexed: 10/27/2022]
Abstract
With the advent of new molecular tools, new taxa of sulphur-oxidising bacteria (SOB) in diverse environments are being discovered. However, there is a significant gap of knowledge about the ecology and diversity of SOB in thermal springs. Here, the species diversity and phylogenetic affiliations of SOB were investigated using 16S rRNA and functional gene marker, soxB in thermal springs of Thane district of Maharashtra, India. Most SOB detected by 16S rDNA sequences belong to different operational taxonomic units (OTU's): Firmicutes, α-, β-, γ-Proteobacteria and Actinobacteria with the dominance of first class. However, the soxB gene clone library sequences had shown affiliation with the β-, γ- and α-Proteobacteria. β-Proteobacteria-related sequences were dominant, with 53.3% clones belonging to genus Hydrogenophaga. The thiosulphate oxidation assay carried out for different isolates having distinct identity showed the mean sulphate-sulphur production from 117.86 ± 0.50 to 218.82 ± 2.56 mg SO4-S l-1 after 9 days of incubation. Also, sulphur oxidation by the genus Nitratireductor, Caldimonas, Geobacillus, Paenibacillus, Brevibacillus, Tristrella and Chelatococcus has been reported for the first time that reveals ecological widening over which thiotrophs are distributed.
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BIODECOLORIZATION OF TEXTILE INDUSTRIAL WASTE BY THERMOPHILIC BACTERIA Anoxybacillus rupiensis TS04 AND Anoxybacillus flavithermus TS15. BIOVALENTIA: BIOLOGICAL RESEARCH JOURNAL 2018. [DOI: 10.24233/biov.4.1.2018.96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Wastewater of textile industries contained a high content of synthetic dyes that could damage the aquatic ecosystem and environmental aesthetics. The use of microorganisms on the biodecolorization of textile industrial waste had advantages such as low cost and environmentally friendly. The purpose of the study was to determine biodecolorization capability of Anoxybacillus rupiensis TS04 and Anoxybacillus flavithermus TS15 for industrial waste of tie-dye fabrics. Completely randomized design with factorial pattern was used in the research; factor I and II were concentrations of wastewater and types of bacteria, respectively Anoxybacillus rupiensis TS04 showed the highest decolorization ability by 83.25% for wastewater concentration of 80% (v/v) and Anoxybacillus flavithermus TS15 by 69% at 40% (v/v) waste concentration.The highest cell number of Anoxybacillus rupiensis TS04 was obtained as 1.52 x 106 cfu/mL and biodecolorization, textile industrial waste, thermophilic bacteria,Anoxybacillus flavithermus TS15 3.70 x 105cfu/mL.
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Geobacillus and Anoxybacillus spp. from Terrestrial Geothermal Springs Worldwide: Diversity and Biotechnological Applications. EXTREMOPHILES IN EURASIAN ECOSYSTEMS: ECOLOGY, DIVERSITY, AND APPLICATIONS 2018. [DOI: 10.1007/978-981-13-0329-6_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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