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Microbial Community Responses to Modern Environmental
Originally published as: Genderjahn, S., Alawi, M., Wagner, D., Schüller, I., Wanke, A., Mangelsdorf, K. (2018): Microbial Community Responses to Modern Environmental and Past Climatic Conditions in Omongwa Pan, Western Kalahari: A Paired 16S rRNA Gene Profiling and Lipid Biomarker Approach. - Journal of Geophysical Research, 123, 4, pp. 1333—1351. DOI: http://doi.org/10.1002/2017JG004098 Journal of Geophysical Research: Biogeosciences RESEARCH ARTICLE Microbial Community Responses to Modern Environmental 10.1002/2017JG004098 and Past Climatic Conditions in Omongwa Pan, Western Key Points: Kalahari: A Paired 16S rRNA Gene Profiling • Kalahari pan structures possess high potential to act as geoarchives for and Lipid Biomarker Approach preserved biomolecules in arid to semiarid regions S. Genderjahn1 , M. Alawi1 , D. Wagner1,2 , I. Schüller3, A. Wanke4, and K. Mangelsdorf1 • Past microbial biomarker suggests changing climatic conditions during 1GFZ German Research Centre for Geosciences, Helmholtz Centre Potsdam, Potsdam, Germany, 2Institute of Earth and the Late Glacial to Holocene transition 3 in the western Kalahari Environmental Science, University of Potsdam, Potsdam, Germany, Marine Research Department, Senckenberg am Meer, 4 • Based on taxonomic investigations, Wilhelmshaven, Germany, Department of Geology, University of Namibia, Windhoek, Namibia the abundance and diversity of the microbial community in the pan is related to near-surface processes Abstract Due to a lack of well-preserved terrestrial climate archives, paleoclimate studies are sparse in southwestern Africa. Because there are no perennial lacustrine systems in this region, this study relies on a Supporting Information: saline pan as an archive for climate information in the western Kalahari (Namibia). Molecular biological and • Supporting Information S1 biogeochemical analyses were combined to examine the response of indigenous microbial communities to modern and past climate-induced environmental conditions. -
Delft University of Technology Halococcoides Cellulosivorans Gen
Delft University of Technology Halococcoides cellulosivorans gen. nov., sp. nov., an extremely halophilic cellulose- utilizing haloarchaeon from hypersaline lakes Sorokin, Dimitry Y.; Khijniak, Tatiana V.; Elcheninov, Alexander G.; Toshchakov, Stepan V.; Kostrikina, Nadezhda A.; Bale, Nicole J.; Sinninghe Damsté, Jaap S.; Kublanov, Ilya V. DOI 10.1099/ijsem.0.003312 Publication date 2019 Document Version Accepted author manuscript Published in International Journal of Systematic and Evolutionary Microbiology Citation (APA) Sorokin, D. Y., Khijniak, T. V., Elcheninov, A. G., Toshchakov, S. V., Kostrikina, N. A., Bale, N. J., Sinninghe Damsté, J. S., & Kublanov, I. V. (2019). Halococcoides cellulosivorans gen. nov., sp. nov., an extremely halophilic cellulose-utilizing haloarchaeon from hypersaline lakes. International Journal of Systematic and Evolutionary Microbiology, 69(5), 1327-1335. [003312]. https://doi.org/10.1099/ijsem.0.003312 Important note To cite this publication, please use the final published version (if applicable). Please check the document version above. Copyright Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons. Takedown policy Please contact us and provide details if you believe this document breaches copyrights. We will remove access to the work immediately and investigate your claim. This work is downloaded from Delft University of Technology. For technical reasons the number of authors shown on this cover page is limited to a maximum of 10. International Journal of Systematic and Evolutionary Microbiology Halococcoides cellulosivorans gen. -
High Quality Permanent Draft Genome Sequence of Chryseobacterium Bovis DSM 19482T, Isolated from Raw Cow Milk
Lawrence Berkeley National Laboratory Recent Work Title High quality permanent draft genome sequence of Chryseobacterium bovis DSM 19482T, isolated from raw cow milk. Permalink https://escholarship.org/uc/item/4b48v7v8 Journal Standards in genomic sciences, 12(1) ISSN 1944-3277 Authors Laviad-Shitrit, Sivan Göker, Markus Huntemann, Marcel et al. Publication Date 2017 DOI 10.1186/s40793-017-0242-6 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Laviad-Shitrit et al. Standards in Genomic Sciences (2017) 12:31 DOI 10.1186/s40793-017-0242-6 SHORT GENOME REPORT Open Access High quality permanent draft genome sequence of Chryseobacterium bovis DSM 19482T, isolated from raw cow milk Sivan Laviad-Shitrit1, Markus Göker2, Marcel Huntemann3, Alicia Clum3, Manoj Pillay3, Krishnaveni Palaniappan3, Neha Varghese3, Natalia Mikhailova3, Dimitrios Stamatis3, T. B. K. Reddy3, Chris Daum3, Nicole Shapiro3, Victor Markowitz3, Natalia Ivanova3, Tanja Woyke3, Hans-Peter Klenk4, Nikos C. Kyrpides3 and Malka Halpern1,5* Abstract Chryseobacterium bovis DSM 19482T (Hantsis-Zacharov et al., Int J Syst Evol Microbiol 58:1024-1028, 2008) is a Gram-negative, rod shaped, non-motile, facultative anaerobe, chemoorganotroph bacterium. C. bovis is a member of the Flavobacteriaceae, a family within the phylum Bacteroidetes. It was isolated when psychrotolerant bacterial communities in raw milk and their proteolytic and lipolytic traits were studied. Here we describe the features of this organism, together with the draft genome sequence and annotation. The DNA G + C content is 38.19%. The chromosome length is 3,346,045 bp. It encodes 3236 proteins and 105 RNA genes. The C. bovis genome is part of the Genomic Encyclopedia of Type Strains, Phase I: the one thousand microbial genomes study. -
Diversity of Halophilic Archaea in Fermented Foods and Human Intestines and Their Application Han-Seung Lee1,2*
J. Microbiol. Biotechnol. (2013), 23(12), 1645–1653 http://dx.doi.org/10.4014/jmb.1308.08015 Research Article Minireview jmb Diversity of Halophilic Archaea in Fermented Foods and Human Intestines and Their Application Han-Seung Lee1,2* 1Department of Bio-Food Materials, College of Medical and Life Sciences, Silla University, Busan 617-736, Republic of Korea 2Research Center for Extremophiles, Silla University, Busan 617-736, Republic of Korea Received: August 8, 2013 Revised: September 6, 2013 Archaea are prokaryotic organisms distinct from bacteria in the structural and molecular Accepted: September 9, 2013 biological sense, and these microorganisms are known to thrive mostly at extreme environments. In particular, most studies on halophilic archaea have been focused on environmental and ecological researches. However, new species of halophilic archaea are First published online being isolated and identified from high salt-fermented foods consumed by humans, and it has September 10, 2013 been found that various types of halophilic archaea exist in food products by culture- *Corresponding author independent molecular biological methods. In addition, even if the numbers are not quite Phone: +82-51-999-6308; high, DNAs of various halophilic archaea are being detected in human intestines and much Fax: +82-51-999-5458; interest is given to their possible roles. This review aims to summarize the types and E-mail: [email protected] characteristics of halophilic archaea reported to be present in foods and human intestines and pISSN 1017-7825, eISSN 1738-8872 to discuss their application as well. Copyright© 2013 by The Korean Society for Microbiology Keywords: Halophilic archaea, fermented foods, microbiome, human intestine, Halorubrum and Biotechnology Introduction Depending on the optimal salt concentration needed for the growth of strains, halophilic microorganisms can be Archaea refer to prokaryotes that used to be categorized classified as halotolerant (~0.3 M), halophilic (0.2~2.0 M), as archaeabacteria, a type of bacteria, in the past. -
Investigating the Effects of Simulated Martian Ultraviolet Radiation on Halococcus Dombrowskii and Other Extremely Halophilic Archaebacteria
ASTROBIOLOGY Volume 9, Number 1, 2009 © Mary Ann Liebert, Inc. DOI: 10.1089/ast.2007.0234 Special Paper Investigating the Effects of Simulated Martian Ultraviolet Radiation on Halococcus dombrowskii and Other Extremely Halophilic Archaebacteria Sergiu Fendrihan,1 Attila Bérces,2 Helmut Lammer,3 Maurizio Musso,4 György Rontó,2 Tatjana K. Polacsek,1 Anita Holzinger,1 Christoph Kolb,3,5 and Helga Stan-Lotter1 Abstract The isolation of viable extremely halophilic archaea from 250-million-year-old rock salt suggests the possibil- ity of their long-term survival under desiccation. Since halite has been found on Mars and in meteorites, haloar- chaeal survival of martian surface conditions is being explored. Halococcus dombrowskii H4 DSM 14522T was ex- posed to UV doses over a wavelength range of 200–400 nm to simulate martian UV flux. Cells embedded in a thin layer of laboratory-grown halite were found to accumulate preferentially within fluid inclusions. Survival was assessed by staining with the LIVE/DEAD kit dyes, determining colony-forming units, and using growth tests. Halite-embedded cells showed no loss of viability after exposure to about 21 kJ/m2, and they resumed growth in liquid medium with lag phases of 12 days or more after exposure up to 148 kJ/m2. The estimated Ն 2 D37 (dose of 37 % survival) for Hcc. dombrowskii was 400 kJ/m . However, exposure of cells to UV flux while 2 in liquid culture reduced D37 by 2 orders of magnitude (to about 1 kJ/m ); similar results were obtained with Halobacterium salinarum NRC-1 and Haloarcula japonica. -
Tratamiento Biológico Aerobio Para Aguas Residuales Con Elevada Conductividad Y Concentración De Fenoles
PROGRAMA DE DOCTORADO EN INGENIERÍA Y PRODUCCIÓN INDUSTRIAL Tratamiento biológico aerobio para aguas residuales con elevada conductividad y concentración de fenoles TESIS DOCTORAL Presentada por: Eva Ferrer Polonio Dirigida por: Dr. José Antonio Mendoza Roca Dra. Alicia Iborra Clar Valencia Mayo 2017 AGRADECIMIENTOS La sabiduría popular, a la cual recurro muchas veces, dice: “Es de bien nacido ser agradecido”… pues sigamos su consejo, aquí van los míos. En primer lugar quiero agradecer a mis directores la confianza depositada en mí y a Depuración de Aguas del Mediterráneo, especialmente a Laura Pastor y Silvia Doñate, la dedicación e ilusión puestas en el proyecto. Durante el desarrollo de esta Tesis Doctoral he tenido la inmensa suerte de contar con un grupo de personas de las que he aprendido muchísimo y que de forma desinteresada han colaborado en este trabajo, enriqueciéndolo enormemente. Gracias al Dr. Jaime Primo Millo, del Instituto Agroforestal Mediterráneo de la Universitat Politècnica de València, por el asesoramiento recibido y por permitirme utilizar los equipos de cromatografía de sus instalaciones. También quiero dar un agradecimiento especial a una de las personas de su equipo de investigación, ya que sin su ayuda, tiempo y enseñanzas en los primeros análisis realizados con esta técnica, no me hubiera sido posible llevar a cabo esta tarea con tanta facilidad…gracias Dra. Nuria Cabedo Escrig. Otra de las personas con las que he tenido la suerte de colaborar ha sido la Dra. Blanca Pérez Úz, del Departamento de Microbiología III de la Facultad de Ciencias Biológicas de la Universidad Complutense de Madrid. Blanca, aunque no nos conocemos personalmente, tu profesionalidad y dedicación han permitido superar las barreras de la distancia…gracias. -
University of Oklahoma Graduate College
UNIVERSITY OF OKLAHOMA GRADUATE COLLEGE THE ISOLATION AND CHARACTERIZATION OF NOVEL EXTREME HALOPHILIC ARCHAEA FROM A LOW-SALT, SULFIDE- AND SULFUR-RICH SPRING. A DISSERTATION SUBMITTED TO THE GRADUATE FACULTY in partial fulfillment of the requirements for the Degree of DOCTOR OF PHILOSOPHY By KRISTEN NICHOLE SAVAGE Norman, Oklahoma 2009 THE ISOLATION AND CHARACTERIZATION OF NOVEL EXTREME HALOPHILIC ARCHAEA FROM A LOW-SALT, SULFIDE- AND SULFUR-RICH SPRING. A DISSERTATION APPROVED FOR THE DEPARTMENT OF BOTANY AND MICROBIOLOGY BY __________________________ Dr. Lee R. Krumholz, Chair __________________________ Dr. Mostafa S. Elshahed __________________________ Dr. Joseph M. Suflita __________________________ Dr. Michael J. McInerney __________________________ Dr. R. Paul Philp © Copyright by KRISTEN NICHOLE SAVAGE 2009 All Rights Reserved. I dedicate this to my parents, Monty and Debbie Savage. You honestly believed from the day that I was born that I could be anything that I wanted to be. Thank you for believing in me, and I hope that I have become a person that you can be proud of. Acknowledgements I would not be here today without the support of many people. I am grateful to so many in this department, for people in my family and my friends but I feel that there are some that deserve special acknowledgement I would like to thank all members of my committee each of you were integral in my development as a scientist. Each of you contributed to my education in one way or another and for that I am very appreciative. I truly believe you have given me the tools to succeed. I know that now it is up to me to make the most of those as I take the next step in my scientific career. -
The Role of Stress Proteins in Haloarchaea and Their Adaptive Response to Environmental Shifts
biomolecules Review The Role of Stress Proteins in Haloarchaea and Their Adaptive Response to Environmental Shifts Laura Matarredona ,Mónica Camacho, Basilio Zafrilla , María-José Bonete and Julia Esclapez * Agrochemistry and Biochemistry Department, Biochemistry and Molecular Biology Area, Faculty of Science, University of Alicante, Ap 99, 03080 Alicante, Spain; [email protected] (L.M.); [email protected] (M.C.); [email protected] (B.Z.); [email protected] (M.-J.B.) * Correspondence: [email protected]; Tel.: +34-965-903-880 Received: 31 July 2020; Accepted: 24 September 2020; Published: 29 September 2020 Abstract: Over the years, in order to survive in their natural environment, microbial communities have acquired adaptations to nonoptimal growth conditions. These shifts are usually related to stress conditions such as low/high solar radiation, extreme temperatures, oxidative stress, pH variations, changes in salinity, or a high concentration of heavy metals. In addition, climate change is resulting in these stress conditions becoming more significant due to the frequency and intensity of extreme weather events. The most relevant damaging effect of these stressors is protein denaturation. To cope with this effect, organisms have developed different mechanisms, wherein the stress genes play an important role in deciding which of them survive. Each organism has different responses that involve the activation of many genes and molecules as well as downregulation of other genes and pathways. Focused on salinity stress, the archaeal domain encompasses the most significant extremophiles living in high-salinity environments. To have the capacity to withstand this high salinity without losing protein structure and function, the microorganisms have distinct adaptations. -
Deoxyribonucleic Acid Base Sequence Homologies of Some Budding and Prosthecate Bacterla RICHARD L
JOURNAL OF BACTERIOLOGY, Apr. 1972, p. 256-261 Vol. 110, No. 1 Copyright © 1972 American Society for Microbiology Printed in U.S.A. Deoxyribonucleic Acid Base Sequence Homologies of Some Budding and Prosthecate Bacterla RICHARD L. MOORE' AND PETER HIRSCH2 Department of Microbiology and Public Health, Michigan State University, East Lansing, Michigan 48823 Received for publication 21 December 1971 The genetic relatedness of a number of budding and prosthecate bacteria was determined by deoxyribonucleic acid (DNA) homology experiments of the di- rect binding type. Strains of Hyphomicrobium sp. isolated from aquatic habi- tats were found to have relatedness values ranging from 9 to 70% with strain "EA-617," a subculture of the Hyphomicrobium isolated by Mevius from river water. Strains obtained from soil enrichments had lower values with EA-617, ranging from 3 to 5%. Very little or no homology was detected between the amino acid-utilizing strain Hyphomicrobium neptunium and other Hyphomi- crobium strains, although significant homology was observed with the two Hyphomonas strains examined. No homology could be detected between pros- thecate bacteria of the genera Rhodomicrobium, Prosthecomicrobium, Ancal- omicrobium, or Caulobacter, and Hyphomicrobium strain EA-617 or H. nep- tunium LE-670. The grouping of Hyphomicrobium strains by their relatedness values agrees well with a grouping according to the base composition of their DNA species. It is concluded that bacteria possessing cellular extensions repre- sent a widely diverse group of organisms. Two genera of bacteria, Hyphomicrobium drum, P. pneumaticum, Ancalomicrobium adetum, and Rhodomicrobium, are listed under the and Caulobacter crescentus were obtained from J. T. family of Hyphomicrobiaceae in the seventh Staley (Seattle); Rhodomicrobium vannielii was re- edition of Bergey's Manual of Determinative ceived from H. -
C Copyright 2013 Marcela Ewert Sarmiento
c Copyright 2013 Marcela Ewert Sarmiento Microbial Challenges and Solutions to Inhabiting the Dynamic Architecture of Saline Ice Formations Marcela Ewert Sarmiento A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Washington 2013 Reading Committee: Jody W. Deming, Chair John A. Baross Rebecca Woodgate Program Authorized to Offer Degree: School of Oceanography and Astrobiology Program University of Washington Abstract Microbial Challenges and Solutions to Inhabiting the Dynamic Architecture of Saline Ice Formations Marcela Ewert Sarmiento Chair of the Supervisory Committee: Walters Endowed Professor Jody W. Deming Oceanography Sea ice contains a microscopic network of brine inclusions effectively colonized by organisms from the three major clades of life. The architecture of this brine channel network is dynamic, with surface area, brine volume fraction, and brine salinity changing with temper- ature. This dynamic architecture may have also played a role in the origin and early evolution of life (Chapter 1). Sea-ice microorganisms experience multiple stressors, including low temperature, high salinity and fluctuations in those parameters. This dissertation discusses two bacterial adaptations to these challenges: the production of extracellular polysaccharide substances (EPS) and the accumulation of compatible solutes. Two Arctic bacteria were used as model organisms; the psychrophilic Colwellia psychrerythraea strain 34H (Cp34H), which grows at a comparatively narrow range -
Ammonia-Oxidizing Archaea Use the Most Energy Efficient Aerobic Pathway for CO2 Fixation
Ammonia-oxidizing archaea use the most energy efficient aerobic pathway for CO2 fixation Martin Könneke, Daniel M. Schubert, Philip C. Brown, Michael Hügler, Sonja Standfest, Thomas Schwander, Lennart Schada von Borzyskowski, Tobias J. Erb, David A. Stahl, Ivan A. Berg Supporting Information: Supplementary Appendix SI Text Phylogenetic analysis of the proteins involved in the HP/HB cycle in N. maritimus. The enzymes of the HP/HB cycle with unequivocally identified genes consisting of more than 200 amino acids were used for the phylogenetic analysis (Table 1). The genes for biotin carrier protein (Nmar_0274, 140 amino acids), small subunit of methylmalonyl-CoA mutase (Nmar_0958, 140 amino acids) and methylmalonyl-CoA epimerase (Nmar_0953, 131 amino acids) were not analyzed, because their small size prevents reliable phylogenetic tree construction. The genes for acetyl-CoA/propionyl-CoA carboxylase and methylmalonyl-CoA carboxylase homologues can be found in autotrophic Thaumarchaeota and aerobic Crenarchaeota as well as in some heterotrophic Archaea (SI Appendix, Figs. S7-S9, Table S4). Although these enzymes are usually regarded as characteristic enzymes of the HP/HB cycle, they also participate in various heterotrophic pathways in Archaea, e.g. in the methylaspartate cycle of acetate assimilation in haloarchaea (1), propionate and leucine assimilation (2, 3), oxaloacetate or methylmalonyl-CoA decarboxylation (4, 5), anaplerotic pyruvate carboxylation (6). In all three trees (SI Appendix, Figs. S7-S9) the crenarchaeal enzymes tend to cluster with thaumarchaeal ones, but there appears to be no special connection between aerobic Crenarchaeota (Sulfolobales) and Thaumarchaeota sequences. Thaumarchaeal 4-hydroxybutyryl-CoA dehydratase genes form a separate cluster closely related to bacterial sequences; the bacterial enzymes are probably involved in aminobutyrate fermentation (Fig. -
Determination of Hydrolytic Enzyme Capabilities of Halophilic Archaea Isolated from Hides and Skins and Their Phenotypic and Phylogenetic Identification by S
33 DETERMinATION OF HYDROLYTic ENZYME CAPABILITIES OF HALOPHILIC ARCHAEA ISOLATED FROM HIDES AND SKins AND THEIR PHENOTYpic AND PHYLOGENETic IDENTIFicATION by S. T. B LG School of Health, Canakkale Onsekiz Mart University, Terzioglu Campus Canakkale, Turkey, 17100. and B. MER ÇL YaPiCi Biology Department, Faculty of Arts and Science, Canakkale ONSEKIZ MART UNIVERSITY, TERZIOGLU CAMPUS, Canakkale, Turkey, 17100. and İsmail Karaboz Basic and Industrial Microbiology Section, Biology Department, Faculty of Science, Ege University, Bornova, İzmi r, Turkey, 35100. ABSTRACT INTRODUCTION This research aims to isolate extremely halophilic archaea The main constituent of the raw hide is protein, mainly from salted hides, to determine the capacities of their collagen (33% w/w), and remainder is moisture and fat. During hydrolytic enzymes, and to identify them by using phenotypic storage of raw hide, collagen’s excessive proteolysis by and molecular methods. Domestic and imported salted hide lysosomal autolysis or proteolytic bacterial enzymes can lead and skin samples obtained from eight different sources were to the disintegration of the structure of collagen fibers.1 used as the research material. 186 extremely halophilic Biodeterioration is among the major causes of impairment of microorganisms were isolated from salted raw hides and aesthetic, functional and other properties of leather and other skins. Some biochemical, antibiotic sensitivity, pH, NaCl, biopolymers or organic materials and the products made from temperature tolerance and quantitative and qualitative them. Due to the fact that prevention of biological degradation hydrolytic enzyme tests were performed on these isolates. In is very important in conservation and processing of leather, our study, taking into account the phenotypic findings of the great effort is being made for decontamination of these research, 34 of 186 isolates were selected.