Search

Your search keyword '"Spang, Anja"' showing total 393 results
Start Over Author "Spang, Anja"
393 results on '"Spang, Anja"'

1. Chapter 21 Archaea

Author

Dombrowski, Nina, Mahendrarajah, Tara, Gross, Sarah T., Eme, Laura, and Spang, Anja

Subjects
Antisepsis, Bacteria, Bacteriophage, Business of Microbiology, Disinfection, Fungi, Microbiology, Microbiology procedures, parasites, sterilization, virus, thema EDItEUR::P Mathematics and Science::PD Science: general issues, thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PSG Microbiology (non-medical), thema EDItEUR::P Mathematics and Science::PS Biology, life sciences::PSD Molecular biology, thema EDItEUR::P Mathematics and Science::PS Biology, life sciences, thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment::RNC Applied ecology::RNCB Biodiversity
Abstract

Practical Handbook of Microbiology, 4th edition provides basic, clear and concise knowledge and practical information about working with microorganisms. Useful to anyone interested in microbes, the book is intended to especially benefit four groups: trained microbiologists working within one specific area of microbiology; people with training in other disciplines, and use microorganisms as a tool or "chemical reagent"; business people evaluating investments in microbiology focused companies; and an emerging group, people in occupations and trades that might have limited training in microbiology, but who require specific practical information.

Published
2021
Full Text
View/download PDF

2. The nature of the last universal common ancestor and its impact on the early Earth system

Author

Moody, Edmund R. R., Álvarez-Carretero, Sandra, Mahendrarajah, Tara A., Clark, James W., Betts, Holly C., Dombrowski, Nina, Szánthó, Lénárd L., Boyle, Richard A., Daines, Stuart, Chen, Xi, Lane, Nick, Yang, Ziheng, Shields, Graham A., Szöllősi, Gergely J., Spang, Anja, Pisani, Davide, Williams, Tom A., Lenton, Timothy M., and Donoghue, Philip C. J.

Published
2024
Full Text
View/download PDF

3. The parasitic lifestyle of an archaeal symbiont

Author

Hamm, Joshua N., Liao, Yan, von Kügelgen, Andriko, Dombrowski, Nina, Landers, Evan, Brownlee, Christopher, Johansson, Emma M. V., Whan, Renee M., Baker, Matthew A. B., Baum, Buzz, Bharat, Tanmay A. M., Duggin, Iain G., Spang, Anja, and Cavicchioli, Ricardo

Published
2024
Full Text
View/download PDF

5. Minimal and hybrid hydrogenases are active from archaea

Author

Greening, Chris, Cabotaje, Princess R., Valentin Alvarado, Luis E., Leung, Pok Man, Land, Henrik, Rodrigues-Oliveira, Thiago, Ponce-Toledo, Rafael I., Senger, Moritz, Klamke, Max A., Milton, Michael, Lappan, Rachael, Mullen, Susan, West-Roberts, Jacob, Mao, Jie, Song, Jiangning, Schoelmerich, Marie, Stairs, Courtney W., Schleper, Christa, Grinter, Rhys, Spang, Anja, Banfield, Jillian F., and Berggren, Gustav

Published
2024
Full Text
View/download PDF

6. Origin of eukaryotes: What can be learned from the first successfully isolated Asgard archaeon.

Author

Albers, Sonja, Ashmore, Jonathan, Pollard, Thomas, Spang, Anja, and Zhou, Jizhong

Subjects
Microbiology, Biochemistry and Cell Biology, Genetics, Biological Sciences, Generic health relevance, Archeon, Asgard archaea, Eukaryotes, MK-D1
Abstract

The origin of cellular complexity characterizing eukaryotic cells remains a central unresolved issue in the study of diversification of cellular life on Earth. The isolation by Imachi et al.1 of a member of the Asgard archaea2 - a contemporary relative of organisms thought to have given rise to eukaryotic cells about 2 billion years ago - now promises new insight. The complete genome sequence of the isolated Lokiarchaeum strain confirms that the eukaryotic signature proteins (ESPs) previously identified in the Lokiarchaeota3 and other Asgard archaea2 are indeed encoded by these archaeal genomes and do not represent contamination from eukaryotes. These ESPs encode homologs of eukaryotic actins, small GTPases and the ESCRT complex proteins and are required for the functioning of complex eukaryotic cells. The new, slowly growing, anaerobic laboratory strain allows a first direct look at these organisms and provides key insights into the morphology and metabolism of an Asgard archaeal organism. The work has provided valuable information for other laboratories that aim to isolate and characterize related organisms from other environments.

Published
2022

8. Roadmap for naming uncultivated Archaea and Bacteria

Author

Murray, Alison E, Freudenstein, John, Gribaldo, Simonetta, Hatzenpichler, Roland, Hugenholtz, Philip, Kämpfer, Peter, Konstantinidis, Konstantinos T, Lane, Christopher E, Papke, R Thane, Parks, Donovan H, Rossello-Mora, Ramon, Stott, Matthew B, Sutcliffe, Iain C, Thrash, J Cameron, Venter, Stephanus N, Whitman, William B, Acinas, Silvia G, Amann, Rudolf I, Anantharaman, Karthik, Armengaud, Jean, Baker, Brett J, Barco, Roman A, Bode, Helge B, Boyd, Eric S, Brady, Carrie L, Carini, Paul, Chain, Patrick SG, Colman, Daniel R, DeAngelis, Kristen M, de los Rios, Maria Asuncion, Estrada-de los Santos, Paulina, Dunlap, Christopher A, Eisen, Jonathan A, Emerson, David, Ettema, Thijs JG, Eveillard, Damien, Girguis, Peter R, Hentschel, Ute, Hollibaugh, James T, Hug, Laura A, Inskeep, William P, Ivanova, Elena P, Klenk, Hans-Peter, Li, Wen-Jun, Lloyd, Karen G, Löffler, Frank E, Makhalanyane, Thulani P, Moser, Duane P, Nunoura, Takuro, Palmer, Marike, Parro, Victor, Pedrós-Alió, Carlos, Probst, Alexander J, Smits, Theo HM, Steen, Andrew D, Steenkamp, Emma T, Spang, Anja, Stewart, Frank J, Tiedje, James M, Vandamme, Peter, Wagner, Michael, Wang, Feng-Ping, Yarza, Pablo, Hedlund, Brian P, and Reysenbach, Anna-Louise

Subjects
Microbiology, Biological Sciences, Ecology, Archaea, Bacteria, DNA, Bacterial, Metagenome, Phylogeny, Prokaryotic Cells, Sequence Analysis, DNA, Terminology as Topic, Medical Microbiology
Abstract

The assembly of single-amplified genomes (SAGs) and metagenome-assembled genomes (MAGs) has led to a surge in genome-based discoveries of members affiliated with Archaea and Bacteria, bringing with it a need to develop guidelines for nomenclature of uncultivated microorganisms. The International Code of Nomenclature of Prokaryotes (ICNP) only recognizes cultures as 'type material', thereby preventing the naming of uncultivated organisms. In this Consensus Statement, we propose two potential paths to solve this nomenclatural conundrum. One option is the adoption of previously proposed modifications to the ICNP to recognize DNA sequences as acceptable type material; the other option creates a nomenclatural code for uncultivated Archaea and Bacteria that could eventually be merged with the ICNP in the future. Regardless of the path taken, we believe that action is needed now within the scientific community to develop consistent rules for nomenclature of uncultivated taxa in order to provide clarity and stability, and to effectively communicate microbial diversity.

Published
2020

9. An archaeal symbiont-host association from the deep terrestrial subsurface

Author

Schwank, Katrin, Bornemann, Till LV, Dombrowski, Nina, Spang, Anja, Banfield, Jillian F, and Probst, Alexander J

Subjects
Microbiology, Biological Sciences, Genetics, Human Genome, Archaea, Ecosystem, Genome, Archaeal, Groundwater, In Situ Hybridization, Fluorescence, Metagenome, Nanoarchaeota, Phylogeny, Symbiosis, Utah, Environmental Sciences, Technology, Biological sciences, Environmental sciences
Abstract

DPANN archaea have reduced metabolic capacities and are diverse and abundant in deep aquifer ecosystems, yet little is known about their interactions with other microorganisms that reside there. Here, we provide evidence for an archaeal host-symbiont association from a deep aquifer system at the Colorado Plateau (Utah, USA). The symbiont, Candidatus Huberiarchaeum crystalense, and its host, Ca. Altiarchaeum hamiconexum, show a highly significant co-occurrence pattern over 65 metagenome samples collected over six years. The physical association of the two organisms was confirmed with genome-informed fluorescence in situ hybridization depicting small cocci of Ca. H. crystalense attached to Ca. A. hamiconexum cells. Based on genomic information, Ca. H. crystalense potentially scavenges vitamins, sugars, nucleotides, and reduced redox-equivalents from its host and thus has a similar metabolism as Nanoarchaeum equitans. These results provide insight into host-symbiont interactions among members of two uncultivated archaeal phyla that thrive in a deep subsurface aquifer.

Published
2019

14. Asgard archaea illuminate the origin of eukaryotic cellular complexity

Author

Zaremba-Niedzwiedzka, Katarzyna, Caceres, Eva F, Saw, Jimmy H, Bäckström, Disa, Juzokaite, Lina, Vancaester, Emmelien, Seitz, Kiley W, Anantharaman, Karthik, Starnawski, Piotr, Kjeldsen, Kasper U, Stott, Matthew B, Nunoura, Takuro, Banfield, Jillian F, Schramm, Andreas, Baker, Brett J, Spang, Anja, and Ettema, Thijs JG

Subjects
Microbiology, Biochemistry and Cell Biology, Bioinformatics and Computational Biology, Biological Sciences, Infection, Generic health relevance, Archaea, Archaeal Proteins, Biological Transport, COP-Coated Vesicles, Eukaryota, Eukaryotic Cells, Evolution, Molecular, Genome, Archaeal, Metagenomics, Models, Biological, Phylogeny, General Science & Technology
Abstract

The origin and cellular complexity of eukaryotes represent a major enigma in biology. Current data support scenarios in which an archaeal host cell and an alphaproteobacterial (mitochondrial) endosymbiont merged together, resulting in the first eukaryotic cell. The host cell is related to Lokiarchaeota, an archaeal phylum with many eukaryotic features. The emergence of the structural complexity that characterizes eukaryotic cells remains unclear. Here we describe the 'Asgard' superphylum, a group of uncultivated archaea that, as well as Lokiarchaeota, includes Thor-, Odin- and Heimdallarchaeota. Asgard archaea affiliate with eukaryotes in phylogenomic analyses, and their genomes are enriched for proteins formerly considered specific to eukaryotes. Notably, thorarchaeal genomes encode several homologues of eukaryotic membrane-trafficking machinery components, including Sec23/24 and TRAPP domains. Furthermore, we identify thorarchaeal proteins with similar features to eukaryotic coat proteins involved in vesicle biogenesis. Our results expand the known repertoire of 'eukaryote-specific' proteins in Archaea, indicating that the archaeal host cell already contained many key components that govern eukaryotic cellular complexity.

Published
2017

16. Archaea

Author

Dombrowski, Nina, primary, Mahendrarajah, Tara, additional, Gross, Sarah T., additional, Eme, Laura, additional, and Spang, Anja, additional

Published
2021
Full Text
View/download PDF

22. Defining eukaryotes to dissect eukaryogenesis

Author

Donoghue, Philip C.J., primary, Kay, Chris, additional, Spang, Anja, additional, Szöllősi, Gergely, additional, Nenarokova, Anna, additional, Moody, Edmund R.R., additional, Pisani, Davide, additional, and Williams, Tom A., additional

Published
2023
Full Text
View/download PDF

26. An evolutionary timescale for Bacteria calibrated using the Great Oxidation Event

Author

Davin, Adrian A., primary, Woodcroft, Ben J, additional, Soo, Rochelle M, additional, Murali, Ranjani, additional, Schrempf, Dominik, additional, Clark, James, additional, Boussau, Bastien, additional, Moody, Edmund R R, additional, Szánthó, Lénárd L, additional, Richy, Etienne, additional, Pisani, Davide, additional, Hemp, James, additional, Fischer, Woodward W., additional, Donoghue, Philip, additional, Spang, Anja, additional, Hugenholtz, Philip, additional, Williams, Tom A, additional, and Szöllősi, Gergely J, additional

Published
2023
Full Text
View/download PDF

28. Archaea – An Introduction

Author

Blohs, Marcus, primary, Mahnert, Alexander, additional, Spang, Anja, additional, Dombrowski, Nina, additional, Krupovic, Mart, additional, and Klingl, Andreas, additional

Published
2019
Full Text
View/download PDF

30. ATP synthase evolution on a cross-braced dated tree of life

Author

Mahendrarajah, Tara A., primary, Moody, Edmund R. R., additional, Schrempf, Dominik, additional, Szánthó, Lénárd L., additional, Dombrowski, Nina, additional, Davín, Adrián A., additional, Pisani, Davide, additional, Donoghue, Philip C. J., additional, Szöllősi, Gergely J., additional, Williams, Tom A., additional, and Spang, Anja, additional

Published
2023
Full Text
View/download PDF

33. Author Correction: Roadmap for naming uncultivated Archaea and Bacteria

Author

Murray, Alison E., Freudenstein, John, Gribaldo, Simonetta, Hatzenpichler, Roland, Hugenholtz, Philip, Kämpfer, Peter, Konstantinidis, Konstantinos T., Lane, Christopher E., Papke, R. Thane, Parks, Donovan H., Rossello-Mora, Ramon, Stott, Matthew B., Sutcliffe, Iain C., Thrash, J. Cameron, Venter, Stephanus N., Whitman, William B., Acinas, Silvia G., Amann, Rudolf I., Anantharaman, Karthik, Armengaud, Jean, Baker, Brett J., Barco, Roman A., Bode, Helge B., Boyd, Eric S., Brady, Carrie L., Carini, Paul, Chain, Patrick S. G., Colman, Daniel R., DeAngelis, Kristen M., de los Rios, Maria Asuncion, Estrada-de los Santos, Paulina, Dunlap, Christopher A., Eisen, Jonathan A., Emerson, David, Ettema, Thijs J. G., Eveillard, Damien, Girguis, Peter R., Hentschel, Ute, Hollibaugh, James T., Hug, Laura A., Inskeep, William P., Ivanova, Elena P., Klenk, Hans-Peter, Li, Wen-Jun, Lloyd, Karen G., Löffler, Frank E., Makhalanyane, Thulani P., Moser, Duane P., Nunoura, Takuro, Palmer, Marike, Parro, Victor, Pedrós-Alió, Carlos, Probst, Alexander J., Smits, Theo H. M., Steen, Andrew D., Steenkamp, Emma T., Spang, Anja, Stewart, Frank J., Tiedje, James M., Vandamme, Peter, Wagner, Michael, Wang, Feng-Ping, Yarza, Pablo, Hedlund, Brian P., and Reysenbach, Anna-Louise

Published
2021
Full Text
View/download PDF

34. The intracellular lifestyle of an archaeal symbiont

Author

Hamm, Joshua Norman, primary, Liao, Yan, additional, von Kügelgen, Andriko, additional, Dombrowski, Nina, additional, Landers, Evan, additional, Brownlee, Christopher, additional, Johansson, Emma M. V., additional, Whan, Renee M., additional, Baker, Matthew A. B., additional, Baum, Buzz, additional, Bharat, Tanmay A. M., additional, Duggin, Iain G., additional, Spang, Anja, additional, and Cavicchioli, Ricardo, additional

Published
2023
Full Text
View/download PDF

37. Unique Minimal and Hybrid Hydrogenases are Active in Anaerobic Archaea

Author

Greening, Chris, primary, Cabotaje, Princess R., additional, Alvarado, Luis E. Valentin, additional, Leung, Pok Man, additional, Land, Henrik, additional, Senger, Moritz, additional, Klamke, Max A., additional, Milton, Michael, additional, Lappan, Rachael J., additional, Mullen, Susan, additional, West-Roberts, Jacob, additional, Mao, Jie, additional, Song, Jiangning, additional, Schoelmerich, Marie, additional, Stairs, Courtney, additional, Grinter, Rhys, additional, Spang, Anja, additional, Banfield, Jillian F., additional, and Berggren, Gustav, additional

Published
2023
Full Text
View/download PDF

42. Evolving Perspective on the Origin and Diversification of Cellular Life and the Virosphere

Author

Spang, Anja, Mahendrarajah, Tara A., Offre, Pierre, Stairs, Courtney W., Spang, Anja, Mahendrarajah, Tara A., Offre, Pierre, and Stairs, Courtney W.

Abstract

The tree of life (TOL) is a powerful framework to depict the evolutionary history of cellular organisms through time, from our microbial origins to the diversification of multicellular eukaryotes that shape the visible biosphere today. During the past decades, our perception of the TOL has fundamentally changed, in part, due to profound methodological advances, which allowed a more objective approach to studying organismal and viral diversity and led to the discovery of major new branches in the TOL as well as viral lineages. Phylogenetic and comparative genomics analyses of these data have, among others, revolutionized our understanding of the deep roots and diversity of microbial life, the origin of the eukaryotic cell, eukaryotic diversity, as well as the origin, and diversification of viruses. In this review, we provide an overview of some of the recent discoveries on the evolutionary history of cellular organisms and their viruses and discuss a variety of complementary techniques that we consider crucial for making further progress in our understanding of the TOL and its interconnection with the virosphere.

Published
2022
Full Text
View/download PDF

43. An estimate of the deepest branches of the tree of life from ancient vertically evolving genes

Author

Moody, Edmund R. R., Mahendrarajah, Tara A., Dombrowski, Nina, Clark, James W., Petitjean, Celine, Offre, Pierre, Szollosi, Gergely J., Spang, Anja, Williams, Tom A., Perry, George H., Moody, Edmund R. R., Mahendrarajah, Tara A., Dombrowski, Nina, Clark, James W., Petitjean, Celine, Offre, Pierre, Szollosi, Gergely J., Spang, Anja, Williams, Tom A., and Perry, George H.

Abstract

Core gene phylogenies provide a window into early evolution, but different gene sets and analytical methods have yielded substantially different views of the tree of life. Trees inferred from a small set of universal core genes have typically supported a long branch separating the archaeal and bacterial domains. By contrast, recent analyses of a broader set of non-ribosomal genes have suggested that Archaea may be less divergent from Bacteria, and that estimates of inter-domain distance are inflated due to accelerated evolution of ribosomal proteins along the inter-domain branch. Resolving this debate is key to determining the diversity of the archaeal and bacterial domains, the shape of the tree of life, and our understanding of the early course of cellular evolution. Here, we investigate the evolutionary history of the marker genes key to the debate. We show that estimates of a reduced Archaea-Bacteria (AB) branch length result from inter-domain gene transfers and hidden paralogy in the expanded marker gene set. By contrast, analysis of a broad range of manually curated marker gene datasets from an evenly sampled set of 700 Archaea and Bacteria reveals that current methods likely underestimate the AB branch length due to substitutional saturation and poor model fit; that the best-performing phylogenetic markers tend to support longer inter-domain branch lengths; and that the AB branch lengths of ribosomal and non-ribosomal marker genes are statistically indistinguishable. Furthermore, our phylogeny inferred from the 27 highest-ranked marker genes recovers a clade of DPANN at the base of the Archaea and places the bacterial Candidate Phyla Radiation (CPR) within Bacteria as the sister group to the Chloroflexota.

Published
2022
Full Text
View/download PDF

50. Archaea

Author

Dombrowski, Nina, Mahendrarajah, Tara, Gross, Sarah, Eme, Laura, Spang, Anja, Ecologie Systématique et Evolution (ESE), and AgroParisTech-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2021

Catalog

Books, media, physical & digital resources
See catalog results