Bacillus Pycnus Spa Nov. and Bacillus Neidei Spa Nov., Round-Spored
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
The Role of Earthworm Gut-Associated Microorganisms in the Fate of Prions in Soil
THE ROLE OF EARTHWORM GUT-ASSOCIATED MICROORGANISMS IN THE FATE OF PRIONS IN SOIL Von der Fakultät für Lebenswissenschaften der Technischen Universität Carolo-Wilhelmina zu Braunschweig zur Erlangung des Grades eines Doktors der Naturwissenschaften (Dr. rer. nat.) genehmigte D i s s e r t a t i o n von Taras Jur’evič Nechitaylo aus Krasnodar, Russland 2 Acknowledgement I would like to thank Prof. Dr. Kenneth N. Timmis for his guidance in the work and help. I thank Peter N. Golyshin for patience and strong support on this way. Many thanks to my other colleagues, which also taught me and made the life in the lab and studies easy: Manuel Ferrer, Alex Neef, Angelika Arnscheidt, Olga Golyshina, Tanja Chernikova, Christoph Gertler, Agnes Waliczek, Britta Scheithauer, Julia Sabirova, Oleg Kotsurbenko, and other wonderful labmates. I am also grateful to Michail Yakimov and Vitor Martins dos Santos for useful discussions and suggestions. I am very obliged to my family: my parents and my brother, my parents on low and of course to my wife, which made all of their best to support me. 3 Summary.....................................................………………………………………………... 5 1. Introduction...........................................................................................................……... 7 Prion diseases: early hypotheses...………...………………..........…......…......……….. 7 The basics of the prion concept………………………………………………….……... 8 Putative prion dissemination pathways………………………………………….……... 10 Earthworms: a putative factor of the dissemination of TSE infectivity in soil?.………. 11 Objectives of the study…………………………………………………………………. 16 2. Materials and Methods.............................…......................................................……….. 17 2.1 Sampling and general experimental design..................................................………. 17 2.2 Fluorescence in situ Hybridization (FISH)………..……………………….………. 18 2.2.1 FISH with soil, intestine, and casts samples…………………………….……... 18 Isolation of cells from environmental samples…………………………….………. -
Biomineralization Mediated by Ureolytic Bacteria Applied to Water Treatment: a Review
crystals Review Biomineralization Mediated by Ureolytic Bacteria Applied to Water Treatment: A Review Dayana Arias 1,2 ID , Luis A. Cisternas 2,3 ID and Mariella Rivas 1,3,* 1 Laboratory of Algal Biotechnology & Sustainability, Faculty of Marine Sciences and Biological Resources, University of Antofagasta, Antofagasta 1240000, Chile; [email protected] 2 Department of Chemical Engineering and Mineral Process, University of Antofagasta, Antofagasta 1240000, Chile; [email protected] 3 Science and Technology Research Center for Mining CICITEM, Antofagasta 1240000, Chile * Correspondence: [email protected] Academic Editor: Jolanta Prywer Received: 6 October 2017; Accepted: 4 November 2017; Published: 17 November 2017 Abstract: The formation of minerals such as calcite and struvite through the hydrolysis of urea catalyzed by ureolytic bacteria is a simple and easy way to control mechanisms, which has been extensively explored with promising applications in various areas such as the improvement of cement and sandy materials. This review presents the detailed mechanism of the biominerals production by ureolytic bacteria and its applications to the wastewater, groundwater and seawater treatment. In addition, an interesting application is the use of these ureolytic bacteria in the removal of heavy metals and rare earths from groundwater, the removal of calcium and recovery of phosphate from wastewater, and its potential use as a tool for partial biodesalination of seawater and saline aquifers. Finally, we discuss the benefits of using biomineralization processes in water treatment as well as the challenges to be solved in order to reach a successful commercialization of this technology. Keywords: biomineralization; calcite; seawater; wastewater; heavy metals removal; biodesalination 1. -
Genome Diversity of Spore-Forming Firmicutes MICHAEL Y
Genome Diversity of Spore-Forming Firmicutes MICHAEL Y. GALPERIN National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894 ABSTRACT Formation of heat-resistant endospores is a specific Vibrio subtilis (and also Vibrio bacillus), Ferdinand Cohn property of the members of the phylum Firmicutes (low-G+C assigned it to the genus Bacillus and family Bacillaceae, Gram-positive bacteria). It is found in representatives of four specifically noting the existence of heat-sensitive vegeta- different classes of Firmicutes, Bacilli, Clostridia, Erysipelotrichia, tive cells and heat-resistant endospores (see reference 1). and Negativicutes, which all encode similar sets of core sporulation fi proteins. Each of these classes also includes non-spore-forming Soon after that, Robert Koch identi ed Bacillus anthracis organisms that sometimes belong to the same genus or even as the causative agent of anthrax in cattle and the species as their spore-forming relatives. This chapter reviews the endospores as a means of the propagation of this orga- diversity of the members of phylum Firmicutes, its current taxon- nism among its hosts. In subsequent studies, the ability to omy, and the status of genome-sequencing projects for various form endospores, the specific purple staining by crystal subgroups within the phylum. It also discusses the evolution of the violet-iodine (Gram-positive staining, reflecting the pres- Firmicutes from their apparently spore-forming common ancestor ence of a thick peptidoglycan layer and the absence of and the independent loss of sporulation genes in several different lineages (staphylococci, streptococci, listeria, lactobacilli, an outer membrane), and the relatively low (typically ruminococci) in the course of their adaptation to the saprophytic less than 50%) molar fraction of guanine and cytosine lifestyle in a nutrient-rich environment. -
12092016 Ni Xiang Phd Dissertation.Pdf
Biological Control Potential of Spore-forming Plant Growth-Promoting Rhizobacteria Suppressing Meloidogyne incognita on Cotton and Heterodera glycines on Soybean by Ni Xiang A dissertation submitted to the Graduate Faculty of Auburn University in partial fulfillment of the requirements for the Degree of Doctor of Philosophy Auburn, Alabama December 10, 2016 Keywords: biological control, Plant Growth-Promoting Rhizobacteria (PGPR), Meloidogyne incognita, cotton, Heterodera glycines, soybean Copyright 2016 by Ni Xiang Approved by Kathy S. Lawrence, Chair, Professor of Entomology and Plant Pathology Joseph W. Kloepper, Professor of Entomology and Plant Pathology Edward J. Sikora, Professor of Entomology and Plant Pathology David B. Weaver, Professor of Crop, Soil, and Environmental Sciences Dennis P. Delaney, Extension Specialist of Crop, Soil, and Environmental Sciences Abstract The objective of this study was to screen a library of PGPR strains to determine activity to plant-parasitic nematodes with the ultimate goal of identifying new PGPR strains that could be developed into biological nematicide products. Initially a rapid assay was needed to distinguish between live and dead second stage juveniles (J2) of H. glycines and M. incognita. Once the assay was developed, PGPR strains were evaluated in vitro and selected for further evaluation in greenhouse, microplot, and field conditions. Three sodium solutions, sodium carbonate (Na2CO3), sodium bicarbonate (NaHCO3), and sodium hydroxide (NaOH) were evaluated to distinguish between viable live and dead H. glycines and M. incognita J2. The sodium solutions applied to the live J2 stimulated the J2 to twist their bodies in a curling shape and increased movement activity. Optimum movement of H. glycines was observed with the application of 1 µl of Na2CO3 (pH =10) added to the 100 µl suspension. -
Characterization of Ureolytic Bacteria Isolated from Limestone Caves of Sarawak and Evaluation of Their Efficiency in Biocementation
CHARACTERIZATION OF UREOLYTIC BACTERIA ISOLATED FROM LIMESTONE CAVES OF SARAWAK AND EVALUATION OF THEIR EFFICIENCY IN BIOCEMENTATION By ARMSTRONG IGHODALO OMOREGIE A thesis presented in fulfilment of the requirements for the degree of Master of Science (Research) Faculty of Engineering, Computing and Science SWINBURNE UNIVERSITY OF TECHNOLOGY 2016 ABSTRACT The aim of this study was to isolate, identify and characterise bacteria that are capable of producing urease enzyme, from limestone cave samples of Sarawak. Little is known about the diversity of bacteria inhabiting Sarawak’s limestone caves with the ability of hydrolyzing urea substrate through urease for microbially induced calcite precipitation (MICP) applications. Several studies have reported that the majority of ureolytic bacterial species involved in calcite precipitation are pathogenic. However, only a few non-pathogenic urease-producing bacteria have high urease activities, essential in MICP treatment for improvement of soil’s shear strength and stiffness. Enrichment culture technique was used in this study to target highly active urease- producing bacteria from limestone cave samples of Sarawak collected from Fairy and Wind Caves Nature Reserves. These isolates were subsequently subjected to an increased urea concentration for survival ability in conditions containing high urea substrates. Urea agar base media was used to screen for positive urease producers among the bacterial isolates. All the ureolytic bacteria were identified with the use of phenotypic and molecular characterizations. For determination of their respective urease activities, conductivity method was used and the highly active ureolytic bacteria isolated comparable with control strain used in this study were selected and used for the next subsequent experiments in this study. -
Improving the Strength of Sandy Soils Via Ureolytic Caco3 Solidification by Sporosarcina Ureae
Improving the Strength of Sandy Soils via Ureolytic CaCO3 Solidification by Sporosarcina ureae Justin Michael Whitaker1, Sai Vanapalli2, and Danielle Fortin1; 5 1Department of Earth and Environmental Sciences (413-ARC). University of Ottawa, K1N 6N5, Ottawa, ON, Canada 2Department of Civil Engineering (A015-CBY). University of Ottawa, K1N 6N5, Ottawa, ON, Canada 10 Correspondence to: D. Fortin ([email protected]) Key words: Urease, calcite precipitation, MICP, Sporosarcina, Bacillus, biomineralisation, biofilm Abstract 15 'Microbial induced carbonate precipitation' (MICP) is a biogeochemical process that can be applied to strengthen materials. The hydrolysis of urea by microbial catalysis to form carbonate is a commonly studied example of MICP. In this study, Sporosarcina ureae, a ureolytic organism, was compared to other ureolytic and non-ureolytic organisms of Bacillus and Sporosarcina in the assessment of its ability to produce carbonates by ureolytic MICP for 20 ground reinforcement. It was found that S. ureae grew optimally in alkaline (pH ~9.0) conditions which favoured MICP and could degrade urea (units [U] /mL = µmol/min.mL.OD600) at levels (30.28 U/mL) similar to S. pasteurii (32.76 U/mL), the model ureolytic MICP organism. When cells of S. ureae were concentrated (OD600 ~15-20) and mixed with cementation medium containing 0.5 M calcium chloride (CaCl2) and urea into a model sand, repeated treatments (3 x 24 h) were able to improve the confined direct shear strength of samples from 15.77 kPa to as much as 135.80 kPa. This was more 25 than any other organism observed in the study. Imaging of the reinforced samples with scanning electron microscopy and energy dispersive spectroscopy confirmed the successful precipitation of calcium carbonate (CaCO3), across sand particles by S. -
Characterization and Identification of Some Aerobic Spore- Forming Bacteria Isolated from Saline Habitat, West Coastal Region, Saudi Arabia
IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) e-ISSN:2278-3008, p-ISSN:2319-7676. Volume 12, Issue 2 Ver. II (Mar. - Apr.2017), PP 14-19 www.iosrjournals.org Characterization and Identification of Some Aerobic Spore- Forming Bacteria Isolated From Saline Habitat, West Coastal Region, Saudi Arabia 1* 1 2 1,3 Naheda Alshammari , Fatma Fahmy , Sahira Lari and Magda Aly 1Biology Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia, 2Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia, 3Botany Department, Faculty of Science, Kafr el-Sheikh University, Egypt Abstract: Ten isolates of aerobic endospore- forming moderately halophilic bacteria were isolated fromsaline habitat at the west coastal region near Jeddah. All isolates that were Gram positive, catalase positive andshowing different colony morphology and shapes were studied. They were mesophilic, neutralophilic, with temperature range 20-40°C and pH range 7-9. The isolates were separating into two distinct groups facultative anaerobic strictly aerobic. One isolate was identified as Paenibacillus dendritiformis, two isolates as Bacillus oleronius, two isolates as P. alvei, three isolates belong to B. subtilis and B. atrophaeus, and finally two isolates was identified as Bacillus sp. Furthermore, two aerobic endospore-forming cocci, isolated from salt-march soil in Germany were tested for their taxonomical status and used as reference isolates and these isolates belong to the species Halobacillus halophilus. Chemotaxonomic characteristics represented by cell wall analysis and fatty acid profiles of some selected isolates were studied to determine the differences between species. Keywords: Halobacillus, Bacillus, spore, mesophilic, physiological, morphological I. Introduction Aerobic spore-forming bacteria represent a major microflora in many natural biotopes and play an important role in ecosystem development. -
Bacteria Species NCBI Sequence ID Bacteria Species NCBI
Bacteria Species NCBI Sequence ID Bacteria Species NCBI Sequence ID Achromobacter deleyi HG324053.1 Gordonia amarae AF020329.1 Achromobacter kerstersii HG324052.1 AF020330.1 Achromobacter pestifer HG324051.1 AF020331.1 Achromobacter spiritinus HE613447.1 AF020332.1 Acidithiobacillus ferrooxidans AM890075.2 NR_037032.1 AH001793.2 Halomonas denitrificans AM229317.1 Acinetobacter baumannii AB594765.1 Halomonas elongata AM941743.1 Acinetobacter calcoaceticus AB626122.1 Halomonas janggokensis AM229315.1 Acinetobacter lwoffii AB626125.1 Halomonas sp. BH1 FN433898.1 Acinetobacter sp. Z93454.1 Halomonas sp. SR4 JF794994.1 FM177774.1 Janthinobacterium agaricidamnosum AB681849.1 Agrobacterium radiobacter AJ389904.1 Janthinobacterium lividum AB021388.1 AJ130719.1 Janthinobacterium sp. AB252072.1 AM181758.1 AJ846273.1 Aminobacter aminovorans LT984904.1 AM071372.1 LN995690.1 Kocuria carniphila AJ622907.1 Aminobacter anthyllidis FR869633.2 Kocuria flava HQ331530.1 Aminobacter sp. AB905480.1 Kocuria polaris AJ278868.1 FM886907.1 Kocuria sp. LT674162.1 Arthrobacter oxydans LN880075.1 AB773222.1 LN774480.1 Labrys methylaminiphilus AB236172.1 Arthrobacter sp. KM362724.1 Labrys miyagiensis AB236170.1 Azospirillum brasilense AB681745.1 AB236171.1 DQ438999.1 Labrys okinawensis AB236169.1 Azospirillum lipoferum LN874293.1 Labrys sp. LC372609.1 Azospirillum oryzae AB185396.1 Lysinibacillus composti AB547124.1 Azospirillum zeae HE977584.1 Lysinibacillus pakistanensis AB558495.1 Azotobacter chroococcum AB430880.1 Lysinibacillus parviboronicapiens AB681953.1 LN874290.1 Lysinibacillus sp. HG931343.1 Azotobacter vinelandii LK391702.1 Lysinibacillus sphaericus JX485781.1 LN874283.1 Mycobacterium colombiense AM062764.1 LN874283.1 Mycobacterium haemophilum L24800.1 Bacillus caldolyticus EF472596.1 Mycobacterium phlei JX266706.1 Bacillus caldotenax EU484354.1 KF378762.1 AY952967.1 NR_041906.1 Bacillus cereus NR_074540.1 GU142920.1 Bacillus clarkii X76444.1 GU142927.1 Bacillus mucilaginosus AY571332.1 Mycobacterium ratisbonense AJ271863.1 DQ898310.1 Mycobacterium sp. -
Can Microbially Induced Calcite Precipitation (MICP) Through a Ureolytic Pathway Be Successfully Applied for Removing Heavy Metals from Wastewaters?
crystals Review Can Microbially Induced Calcite Precipitation (MICP) through a Ureolytic Pathway Be Successfully Applied for Removing Heavy Metals from Wastewaters? Álvaro Esteban Torres-Aravena 1,2,* , Carla Duarte-Nass 2, Laura Azócar 3, Rodrigo Mella-Herrera 2, Mariella Rivas 4,5 and David Jeison 6 1 Departamento de Ingeniería Química, Universidad de La Frontera, Temuco 4780000, Chile 2 Núcleo Científico y Tecnológico de Biorecursos (BIOREN), Universidad de La Frontera, Temuco 4780000, Chile; [email protected] (C.D.-N.); [email protected] (R.M.-H.) 3 Departamento de Química Ambiental, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile; [email protected] 4 Centro de Investigación Científico Tecnológico para la Minería CICITEM, Antofagasta 1240000, Chile; [email protected] 5 Laboratorio de Biotecnología Algal y Sustentabilidad, Facultad de Ciencias del Mar y recursos Biológicos, Universidad de Antofagasta, Antofagasta 1240000, Chile 6 Escuela de Ingeniería Bioquímica, Facultad de Ingeniería, Pontificia Universidad Católica de Valparaíso, Valparaíso 2362803, Chile; [email protected] * Correspondence: [email protected] Received: 11 October 2018; Accepted: 2 November 2018; Published: 21 November 2018 Abstract: Microbially induced calcite precipitation (MICP) through a ureolytic pathway is a process that promotes calcite precipitation as a result of the urease enzymatic activity of several microorganisms. It has been studied for different technological applications, such as soil bio-consolidation, bio-cementation, CO2 sequestration, among others. Recently, this process has been proposed as a possible process for removing heavy metals from contaminated soils. However, no research has been reported dealing with the MICP process for heavy metal removal from wastewater/waters. -
B. Cereus, Généralités
Adaptation au froid de la bactérie pathogène Bacillus cereus : étude de mécanismes impliqués et exploitation de la diversité génétique Sara Esther Diomande To cite this version: Sara Esther Diomande. Adaptation au froid de la bactérie pathogène Bacillus cereus : étude de mécanismes impliqués et exploitation de la diversité génétique. Agronomie. Université d’Avignon, 2014. Français. NNT : 2014AVIG0666. tel-01408068 HAL Id: tel-01408068 https://tel.archives-ouvertes.fr/tel-01408068 Submitted on 3 Dec 2016 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. Ecole Doctorale Agrosciences et Sciences Thèse Pour obtenir le titre de Docteur de l’Université d’Avignon et des Pays de Vaucluse Discipline : Biotechnologie et Microbiologie Sara Esther DIOMANDE Adaptation au froid de la bactérie pathogène Bacillus cereus : étude de mécanismes impliqués et exploitation de la diversité génétique Soutenue publiquement le 02 Décembre 2014 devant le Jury composé de : Rapporteurs Dr. Emmanuelle BOUVERET Directrice de recherche, CNRS, Marseille Dr. Pascale SERROR Directrice de Recherche, INRA Jouy-en-Josas Examinateurs Pr. Catherine DUPORT Professeur de l’Université d’Avignon Pr. Marc FEUILLOLEY Professeur de l’Université de Rouen Dr. Vincent SANCHIS Directeur de recherche, INRA Jouy-en Josas Directeurs de thèse Dr. -
Yoon Et Al (2001) Sporosarcina Aquimarina Sp.Nov.Pdf
International Journal of Systematic and Evolutionary Microbiology (2001), 51, 1079–1086 Printed in Great Britain Sporosarcina aquimarina sp. nov., a bacterium isolated from seawater in Korea, and transfer of Bacillus globisporus (Larkin and Stokes 1967), Bacillus psychrophilus (Nakamura 1984) and Bacillus pasteurii (Chester 1898) to the genus Sporosarcina as Sporosarcina globispora comb. nov., Sporosarcina psychrophila comb. nov. and Sporosarcina pasteurii comb. nov., and emended description of the genus Sporosarcina 1 Korea Research Institute of Jung-Hoon Yoon,1 Keun-Chul Lee,1 Norbert Weiss,4 Yung Hee Kho,1 Bioscience and 3 1,2 Biotechnology (KRIBB), Kook Hee Kang and Yong-Ha Park PO Box 115, Yusong, Taejon, Korea Author for correspondence: Yong-Ha Park. Tel: 82 42 860 4620. Fax: 82 42 860 4598. 2 j j Probionic Corporation e-mail: yhpark!mail.kribb.re.kr Bio-venture Centre, Korea Research Institute of Bioscience and Biotechnology (KRIBB), A light-orange-coloured, facultatively anaerobic, rod-shaped bacterium (strain PO Box 115, Yusong, SW28T), which was isolated from seawater in Korea, was taxonomically studied Taejon, Korea by a polyphasic approach. This organism formed round terminal endospores in 3 Department of Food and swollen sporangia. The peptidoglycan type is A4α, based on L-Lys-L-Ala-D-Asp. Life Science, The predominant menaquinone is MK-7 and the major fatty acid is ante-C15:0. Sungkyunkwan University, The GMC content of the DNA is 40 mol%. Phylogenetic analysis based on 16S Chunchun-dong 300, rDNA sequences showed that strain SW28T falls within the radiation of a Jangan-gu, Suwon, Korea cluster comprising the rRNA group 2 bacilli and non-Bacillus-type organisms. -
Metagenomics and Metatranscriptomics of Lake Erie Ice
METAGENOMICS AND METATRANSCRIPTOMICS OF LAKE ERIE ICE Opeoluwa F. Iwaloye A Thesis Submitted to the Graduate College of Bowling Green State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2021 Committee: Scott Rogers, Advisor Paul Morris Vipaporn Phuntumart © 2021 Opeoluwa Iwaloye All Rights Reserved iii ABSTRACT Scott Rogers, Lake Erie is one of the five Laurentian Great Lakes, that includes three basins. The central basin is the largest, with a mean volume of 305 km2, covering an area of 16,138 km2. The ice used for this research was collected from the central basin in the winter of 2010. DNA and RNA were extracted from this ice. cDNA was synthesized from the extracted RNA, followed by the ligation of EcoRI (NotI) adapters onto the ends of the nucleic acids. These were subjected to fractionation, and the resulting nucleic acids were amplified by PCR with EcoRI (NotI) primers. The resulting amplified nucleic acids were subject to PCR amplification using 454 primers, and then were sequenced. The sequences were analyzed using BLAST, and taxonomic affiliations were determined. Information about the taxonomic affiliations, important metabolic capabilities, habitat, and special functions were compiled. With a watershed of 78,000 km2, Lake Erie is used for agricultural, forest, recreational, transportation, and industrial purposes. Among the five great lakes, it has the largest input from human activities, has a long history of eutrophication, and serves as a water source for millions of people. These anthropogenic activities have significant influences on the biological community. Multiple studies have found diverse microbial communities in Lake Erie water and sediments, including large numbers of species from the Verrucomicrobia, Proteobacteria, Bacteroidetes, and Cyanobacteria, as well as a diverse set of eukaryotic taxa.