Supplemental Tables Table S1 Accession Data of Bacterial Strains Containing the 3Hpd Gene Cluster
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The Diversity of Cultivable Hydrocarbon-Degrading
THE DIVERSITY OF CULTIVABLE HYDROCARBON-DEGRADING BACTERIA ISOLATED FROM CRUDE OIL CONTAMINATED SOIL AND SLUDGE FROM ARZEW REFINERY IN ALGERIA Sonia Sekkour, Abdelkader Bekki, Zoulikha Bouchiba, Timothy Vogel, Elisabeth Navarro, Ing Sonia To cite this version: Sonia Sekkour, Abdelkader Bekki, Zoulikha Bouchiba, Timothy Vogel, Elisabeth Navarro, et al.. THE DIVERSITY OF CULTIVABLE HYDROCARBON-DEGRADING BACTERIA ISOLATED FROM CRUDE OIL CONTAMINATED SOIL AND SLUDGE FROM ARZEW REFINERY IN ALGERIA. Journal of Microbiology, Biotechnology and Food Sciences, Faculty of Biotechnology and Food Sci- ences, Slovak University of Agriculture in Nitra, 2019, 9 (1), pp.70-77. 10.15414/jmbfs.2019.9.1.70-77. ird-02497490 HAL Id: ird-02497490 https://hal.ird.fr/ird-02497490 Submitted on 3 Mar 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THE DIVERSITY OF CULTIVABLE HYDROCARBON-DEGRADING BACTERIA ISOLATED FROM CRUDE OIL CONTAMINATED SOIL AND SLUDGE FROM ARZEW REFINERY IN ALGERIA Sonia SEKKOUR1*, Abdelkader BEKKI1, Zoulikha BOUCHIBA1, Timothy M. Vogel2, Elisabeth NAVARRO2 Address(es): Ing. Sonia SEKKOUR PhD., 1Université Ahmed Benbella, Faculté des sciences de la nature et de la vie, Département de Biotechnologie, Laboratoire de biotechnologie des rhizobiums et amélioration des plantes, 31000 Oran, Algérie. -
Metaproteogenomic Insights Beyond Bacterial Response to Naphthalene
ORIGINAL ARTICLE ISME Journal – Original article Metaproteogenomic insights beyond bacterial response to 5 naphthalene exposure and bio-stimulation María-Eugenia Guazzaroni, Florian-Alexander Herbst, Iván Lores, Javier Tamames, Ana Isabel Peláez, Nieves López-Cortés, María Alcaide, Mercedes V. del Pozo, José María Vieites, Martin von Bergen, José Luis R. Gallego, Rafael Bargiela, Arantxa López-López, Dietmar H. Pieper, Ramón Rosselló-Móra, Jesús Sánchez, Jana Seifert and Manuel Ferrer 10 Supporting Online Material includes Text (Supporting Materials and Methods) Tables S1 to S9 Figures S1 to S7 1 SUPPORTING TEXT Supporting Materials and Methods Soil characterisation Soil pH was measured in a suspension of soil and water (1:2.5) with a glass electrode, and 5 electrical conductivity was measured in the same extract (diluted 1:5). Primary soil characteristics were determined using standard techniques, such as dichromate oxidation (organic matter content), the Kjeldahl method (nitrogen content), the Olsen method (phosphorus content) and a Bernard calcimeter (carbonate content). The Bouyoucos Densimetry method was used to establish textural data. Exchangeable cations (Ca, Mg, K and 10 Na) extracted with 1 M NH 4Cl and exchangeable aluminium extracted with 1 M KCl were determined using atomic absorption/emission spectrophotometry with an AA200 PerkinElmer analyser. The effective cation exchange capacity (ECEC) was calculated as the sum of the values of the last two measurements (sum of the exchangeable cations and the exchangeable Al). Analyses were performed immediately after sampling. 15 Hydrocarbon analysis Extraction (5 g of sample N and Nbs) was performed with dichloromethane:acetone (1:1) using a Soxtherm extraction apparatus (Gerhardt GmbH & Co. -
Potential for and Distribution of Enzymatic Biodegradation of Polystyrene by Environmental Microorganisms
materials Communication Potential for and Distribution of Enzymatic Biodegradation of Polystyrene by Environmental Microorganisms Liyuan Hou and Erica L.-W. Majumder * Department of Chemistry, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA; [email protected] * Correspondence: [email protected] or [email protected]; Tel.: +1-3154706854 Abstract: Polystyrene (PS) is one of the main polymer types of plastic wastes and is known to be resistant to biodegradation, resulting in PS waste persistence in the environment. Although previous studies have reported that some microorganisms can degrade PS, enzymes and mechanisms of microorganism PS biodegradation are still unknown. In this study, we summarized microbial species that have been identified to degrade PS. By screening the available genome information of microorganisms that have been reported to degrade PS for enzymes with functional potential to depolymerize PS, we predicted target PS-degrading enzymes. We found that cytochrome P4500s, alkane hydroxylases and monooxygenases ranked as the top potential enzyme classes that can degrade PS since they can break C–C bonds. Ring-hydroxylating dioxygenases may be able to break the side-chain of PS and oxidize the aromatic ring compounds generated from the decomposition of PS. These target enzymes were distributed in Proteobacteria, Actinobacteria, Bacteroidetes, and Firmicutes, suggesting a broad potential for PS biodegradation in various earth environments and microbiomes. Our results provide insight into the enzymatic degradation of PS and suggestions for realizing the biodegradation of this recalcitrant plastic. Citation: Hou, L.; Majumder, E.L. Keywords: plastics; polystyrene biodegradation; enzymatic biodegradation; monooxygenase; alkane Potential for and Distribution of hydroxylase; cytochrome P450 Enzymatic Biodegradation of Polystyrene by Environmental Microorganisms. -
Developing a Genetic Manipulation System for the Antarctic Archaeon, Halorubrum Lacusprofundi: Investigating Acetamidase Gene Function
www.nature.com/scientificreports OPEN Developing a genetic manipulation system for the Antarctic archaeon, Halorubrum lacusprofundi: Received: 27 May 2016 Accepted: 16 September 2016 investigating acetamidase gene Published: 06 October 2016 function Y. Liao1, T. J. Williams1, J. C. Walsh2,3, M. Ji1, A. Poljak4, P. M. G. Curmi2, I. G. Duggin3 & R. Cavicchioli1 No systems have been reported for genetic manipulation of cold-adapted Archaea. Halorubrum lacusprofundi is an important member of Deep Lake, Antarctica (~10% of the population), and is amendable to laboratory cultivation. Here we report the development of a shuttle-vector and targeted gene-knockout system for this species. To investigate the function of acetamidase/formamidase genes, a class of genes not experimentally studied in Archaea, the acetamidase gene, amd3, was disrupted. The wild-type grew on acetamide as a sole source of carbon and nitrogen, but the mutant did not. Acetamidase/formamidase genes were found to form three distinct clades within a broad distribution of Archaea and Bacteria. Genes were present within lineages characterized by aerobic growth in low nutrient environments (e.g. haloarchaea, Starkeya) but absent from lineages containing anaerobes or facultative anaerobes (e.g. methanogens, Epsilonproteobacteria) or parasites of animals and plants (e.g. Chlamydiae). While acetamide is not a well characterized natural substrate, the build-up of plastic pollutants in the environment provides a potential source of introduced acetamide. In view of the extent and pattern of distribution of acetamidase/formamidase sequences within Archaea and Bacteria, we speculate that acetamide from plastics may promote the selection of amd/fmd genes in an increasing number of environmental microorganisms. -
Polyamine Profiles of Some Members of the Alpha Subclass of the Class Proteobacteria: Polyamine Analysis of Twenty Recently Described Genera
Microbiol. Cult. Coll. June 2003. p. 13 ─ 21 Vol. 19, No. 1 Polyamine Profiles of Some Members of the Alpha Subclass of the Class Proteobacteria: Polyamine Analysis of Twenty Recently Described Genera Koei Hamana1)*,Azusa Sakamoto1),Satomi Tachiyanagi1), Eri Terauchi1)and Mariko Takeuchi2) 1)Department of Laboratory Sciences, School of Health Sciences, Faculty of Medicine, Gunma University, 39 ─ 15 Showa-machi 3 ─ chome, Maebashi, Gunma 371 ─ 8514, Japan 2)Institute for Fermentation, Osaka, 17 ─ 85, Juso-honmachi 2 ─ chome, Yodogawa-ku, Osaka, 532 ─ 8686, Japan Cellular polyamines of 41 newly validated or reclassified alpha proteobacteria belonging to 20 genera were analyzed by HPLC. Acetic acid bacteria belonging to the new genus Asaia and the genera Gluconobacter, Gluconacetobacter, Acetobacter and Acidomonas of the alpha ─ 1 sub- group ubiquitously contained spermidine as the major polyamine. Aerobic bacteriochlorophyll a ─ containing Acidisphaera, Craurococcus and Paracraurococcus(alpha ─ 1)and Roseibium (alpha-2)contained spermidine and lacked homospermidine. New Rhizobium species, including some species transferred from the genera Agrobacterium and Allorhizobium, and new Sinorhizobium and Mesorhizobium species of the alpha ─ 2 subgroup contained homospermidine as a major polyamine. Homospermidine was the major polyamine in the genera Oligotropha, Carbophilus, Zavarzinia, Blastobacter, Starkeya and Rhodoblastus of the alpha ─ 2 subgroup. Rhodobaca bogoriensis of the alpha ─ 3 subgroup contained spermidine. Within the alpha ─ 4 sub- group, the genus Sphingomonas has been divided into four clusters, and species of the emended Sphingomonas(cluster I)contained homospermidine whereas those of the three newly described genera Sphingobium, Novosphingobium and Sphingopyxis(corresponding to clusters II, III and IV of the former Sphingomonas)ubiquitously contained spermidine. -
Toluene Biodegradation in an Algal-Bacterial Airlift Photobioreactor: Influence of the Biomass Concentration and the Presence Of
*Manuscript Click here to view linked References 1 Toluene biodegradation in an algal-bacterial airlift 1 2 2 photobioreactor: influence of the biomass concentration and 3 4 3 the presence of an organic phase 5 4 6 7 8 5 Raquel Lebrero*, Roxana Ángeles, Rebeca Pérez, Raúl Muñoz 9 10 11 12 6 Department of Chemical Engineering and Environmental Technology, University of 13 14 7 Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain. Tel. +34 983186424, Fax: 15 8 +34983423013. 16 17 9 18 19 20 10 *Corresponding author: [email protected] 21 22 11 Keywords: Airlift bioreactor, algal-bacterial photobioreactor, toluene biodegradation, 23 24 12 two-phase partitioning bioreactor 25 26 27 13 28 29 14 Abstract 30 31 32 15 The potential of algal-bacterial symbiosis for off-gas abatement was investigated for the first 33 16 time by comparatively evaluating the performance of a bacterial (CB) and an algal-bacterial 34 35 17 (PB) airlift bioreactors during the treatment of a 6 g m-3 toluene laden air emission. The 36 37 18 influence of biomass concentration and of the addition of a non-aqueous phase was also 38 19 investigated. A poor and fluctuating performance was recorded during the initial stages of the 39 40 20 experiment, which was attributed to the low biomass concentration present in both reactors and 41 42 21 to the accumulation of toxic metabolites. In this sense, an increase in the dilution rate from 0.23 43 22 to 0.45 d-1 and in biomass concentration from ~1 to ~5 g L-1 resulted in elimination capacities 44 45 23 (ECs) of 300 g m-3 h-1 (corresponding to removal efficiencies ~ 90 %). -
Rubisco POSTER 2016 MACUB
Direct PCR Detection, Cloning, and Characterization of Bacterial RubisCO Genes from New Jersey Soils Stephanie Zapata*, Anna Gonzalez, Margarita Kulko, Ryan Kim, Theranda Jashari, Aidan Holwerda, Tina Choe, and Luis Jimenez Department of Biology and Horticulture, Bergen Community College, Paramus, New Jersey, USA Abstract Materials and Methods Ribulose-1,5-bisphosphate carboxylase/oxygenase, commonly known by PCR detection of bacterial RubisCO genes in soil the abbreviation RubisCO, is an enzyme involved in the first major step of Cloning libraries carbon fixation, a process by which atmospheric carbon dioxide is The DNA fragments from the PCR amplification of RubisCO converted by bacteria to energy-rich molecules such as glucose. genes were cloned using plasmid pCR®4-TOPO (Life Microbial DNA was extracted from temperate soils using the Zymo Technologies, Thermo Fisher Scientific, Grand Island, NY) Microbe DNA MiniPrep protocol. RubisCo gene sequences were according to the manufacturer’s instructions. Transformations amplified by PCR using degenerate primers cbbLG1F and cbbLG1R. were performed using Mix and Go Competent E. coli strains DNA fragments of approximately 800 base pair were detected in all positive soil samples. Clone libraries were constructed with the amplified (Zymo Research, Irvine, CA). White colonies grown on Luria ç800 bp DNA fragments by ligating the detected fragments with vector pCR®4- Bertani (LB) Agar with ampicillin (50 ug/ml) were transferred to LB TOPO. Transformations were performed using competent Mix and Go broth containing ampicillin (50 ug/ml). Samples were incubated Escherichia coli cells. Plasmids were isolated from each clone using the overnight at 37°C. Zyppy Plasmid Miniprep and inserts were screened by PCR using M13 Plasmids were isolated from each clone using the Zyppy Plasmid DNA primers. -
Ice-Nucleating Particles Impact the Severity of Precipitations in West Texas
Ice-nucleating particles impact the severity of precipitations in West Texas Hemanth S. K. Vepuri1,*, Cheyanne A. Rodriguez1, Dimitri G. Georgakopoulos4, Dustin Hume2, James Webb2, Greg D. Mayer3, and Naruki Hiranuma1,* 5 1Department of Life, Earth and Environmental Sciences, West Texas A&M University, Canyon, TX, USA 2Office of Information Technology, West Texas A&M University, Canyon, TX, USA 3Department of Environmental Toxicology, Texas Tech University, Lubbock, TX, USA 4Department of Crop Science, Agricultural University of Athens, Athens, Greece 10 *Corresponding authors: [email protected] and [email protected] Supplemental Information 15 S1. Precipitation and Particulate Matter Properties S1.1 Precipitation Categorization In this study, we have segregated our precipitation samples into four different categories, such as (1) snows, (2) hails/thunderstorms, (3) long-lasted rains, and (4) weak rains. For this categorization, we have considered both our observation-based as well as the disdrometer-assigned National Weather Service (NWS) 20 code. Initially, the precipitation samples had been assigned one of the four categories based on our manual observation. In the next step, we have used each NWS code and its occurrence in each precipitation sample to finalize the precipitation category. During this step, a precipitation sample was categorized into snow, only when we identified a snow type NWS code (Snow: S-, S, S+ and/or Snow Grains: SG). Likewise, a precipitation sample was categorized into hail/thunderstorm, only when the cumulative sum of NWS codes for hail was 25 counted more than five times (i.e., A + SP ≥ 5; where A and SP are the codes for soft hail and hail, respectively). -
The Different Dietary Sugars Modulate The
Wang et al. BMC Microbiology (2020) 20:61 https://doi.org/10.1186/s12866-020-01726-6 RESEARCH ARTICLE Open Access The different dietary sugars modulate the composition of the gut microbiota in honeybee during overwintering Hongfang Wang, Chunlei Liu, Zhenguo Liu, Ying Wang, Lanting Ma and Baohua Xu* Abstract Background: The health of honeybee colonies is critical for bee products and agricultural production, and colony health is closely associated with the bacteria in the guts of honeybees. Although colony loss in winter is now the primary restriction in beekeeping, the effects of different sugars as winter food on the health of honeybee colonies are not well understood. Therefore, in this study, the influence of different sugar diets on honeybee gut bacteria during overwintering was examined. Results: The bacterial communities in honeybee midguts and hindguts before winter and after bees were fed honey, sucrose, and high-fructose syrup as winter-food were determined by targeting the V3-V4 region of 16S rDNA using the Illumina MiSeq platform. The dominant microbiota in honeybee guts were the phyla Proteobacteria (63.17%), Firmicutes (17.61%; Lactobacillus, 15.91%), Actinobacteria (4.06%; Bifidobacterium, 3.34%), and Bacteroidetes (1.72%). The dominant taxa were conserved and not affected by season, type of overwintering sugar, or spatial position in the gut. However, the relative abundance of the dominant taxa was affected by those factors. In the midgut, microbial diversity of the sucrose group was higher than that of the honey and high-fructose syrup groups, but in the hindgut, microbial diversity of the honey and high-fructose groups was higher than that in the sucrose group. -
1 Horizontal Gene Transfer of a Unique Nif Island Drives Convergent Evolution of Free-Living
bioRxiv preprint doi: https://doi.org/10.1101/2021.02.03.429501; this version posted February 3, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Horizontal gene transfer of a unique nif island drives convergent evolution of free-living 2 N2-fixing Bradyrhizobium 3 4 Jinjin Tao^, Sishuo Wang^, Tianhua Liao, Haiwei Luo* 5 6 Simon F. S. Li Marine Science Laboratory, School of Life Sciences and State Key Laboratory of 7 Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 8 9 ^These authors contribute equally to this work. 10 11 *Corresponding author: 12 Haiwei Luo 13 School of Life Sciences, The Chinese University of Hong Kong 14 Shatin, Hong Kong SAR 15 Phone: (+852) 39436121 16 E-mail: [email protected] 17 18 Running Title: Free-living Bradyrhizobium evolution 19 Keywords: free-living Bradyrhizobium, nitrogen fixation, lifestyle, HGT 1 bioRxiv preprint doi: https://doi.org/10.1101/2021.02.03.429501; this version posted February 3, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 20 Summary 21 The alphaproteobacterial genus Bradyrhizobium has been best known as N2-fixing members that 22 nodulate legumes, supported by the nif and nod gene clusters. -
Characterization of Bacterial Communities Associated
www.nature.com/scientificreports OPEN Characterization of bacterial communities associated with blood‑fed and starved tropical bed bugs, Cimex hemipterus (F.) (Hemiptera): a high throughput metabarcoding analysis Li Lim & Abdul Hafz Ab Majid* With the development of new metagenomic techniques, the microbial community structure of common bed bugs, Cimex lectularius, is well‑studied, while information regarding the constituents of the bacterial communities associated with tropical bed bugs, Cimex hemipterus, is lacking. In this study, the bacteria communities in the blood‑fed and starved tropical bed bugs were analysed and characterized by amplifying the v3‑v4 hypervariable region of the 16S rRNA gene region, followed by MiSeq Illumina sequencing. Across all samples, Proteobacteria made up more than 99% of the microbial community. An alpha‑proteobacterium Wolbachia and gamma‑proteobacterium, including Dickeya chrysanthemi and Pseudomonas, were the dominant OTUs at the genus level. Although the dominant OTUs of bacterial communities of blood‑fed and starved bed bugs were the same, bacterial genera present in lower numbers were varied. The bacteria load in starved bed bugs was also higher than blood‑fed bed bugs. Cimex hemipterus Fabricus (Hemiptera), also known as tropical bed bugs, is an obligate blood-feeding insect throughout their entire developmental cycle, has made a recent resurgence probably due to increased worldwide travel, climate change, and resistance to insecticides1–3. Distribution of tropical bed bugs is inclined to tropical regions, and infestation usually occurs in human dwellings such as dormitories and hotels 1,2. Bed bugs are a nuisance pest to humans as people that are bitten by this insect may experience allergic reactions, iron defciency, and secondary bacterial infection from bite sores4,5. -
I. General Introduction
SECTION 3 ACIDITHIOBACILLUS I. General Introduction This document presents information that is accepted in the literature about the known characteristics of bacteria in the genus Acidithiobacillus. Regulatory officials may find the technical information useful in evaluating properties of micro-organisms that have been derived for various environmental applications. Consequently, this document provides a wide range of information without prescribing when the information would or would not be relevant to a specific risk assessment. The document represents a snapshot of current information (end-2002) that may be potentially relevant to such assessments. In considering information that should be presented on this taxonomic grouping, the Task Group on Micro-organisms has discussed the list of topics presented in the “Blue Book” (i.e. Recombinant DNA Safety Considerations (OECD, 1986)) and attempted to pare down that list to eliminate duplications as well as those topics whose meaning is unclear, and to rearrange the presentation of the topics covered to be more easily understood (the Task Group met in Vienna, 15-16 June, 2000). This document is a first draft of a proposed Consensus Document for environmental applications involving organisms from the genus Acidithiobacillus. II. General Considerations 1. Subject of Document: Species Included and Taxonomic Considerations The four species of Acidithiobacillus covered in this document were formerly placed in the genus Thiobacillus Beijerinck. In recent years several members of Thiobacillus were transferred to other genera while the remainder became part of three newly created genera, Acidithiobacillus, Halothiobacillus, Thermithiobacillus, and to the revised genus Thiobacillus sensu stricto (Kelly and Harrison, 1989; Kelly and Wood, 2000).