Search results

Items from 1 to 20 out of 153 results

article

Experimental evolution of extremotolerant and extremophilic fungi under osmotic stress

Farhad Hariri Akbari, Zewei Song, Martina Turk, Nina Gunde‐Cimerman, more

Experimental evolution was carried out to investigate the adaptive responses of extremotolerant fungi to a stressful environment. For 12 cultivation cycles, the halotolerant black yeasts Aureobasidium pullulans and Aureobasidium subglaciale were grown at high NaCl or glycerol concentrations, and the halophilic basidiomycete Wallemia ichthyophaga was grown close to its lower NaCl growth limit. All...

article

Lipid turnover through lipophagy in the newly identified extremophilic green microalga Chlamydomonas urium

María Esther Pérez‐Pérez, Manuel J. Mallén‐Ponce, Yosu Odriozola‐Gil, Alejandro Rubio, more

New Phytologist > 243 > 1 > 284 - 298

Autophagy is a central degradative pathway highly conserved among eukaryotes, including microalgae, which remains unexplored in extremophilic organisms. In this study, we described and characterized autophagy in the newly identified extremophilic green microalga Chlamydomonas urium, which was isolated from an acidic environment. The nuclear genome of C. urium was sequenced, assembled and annotated...

article

Characterization of ferredoxins from the thermophilic, acetogenic bacterium Thermoanaerobacter kivui

Alexander Katsyv, Melanie Essig, Giada Bedendi, Selmihan Sahin, more

The FEBS Journal > 290 > 16 > 4107 - 4125

A major electron carrier involved in energy and carbon metabolism in the acetogenic model organism Thermoanaerobacter kivui is ferredoxin, an iron–sulfur‐containing, electron‐transferring protein. Here, we show that the genome of T. kivui encodes four putative ferredoxin‐like proteins (TKV_c09620, TKV_c16450, TKV_c10420 and TKV_c19530). All four genes were cloned, a His‐tag encoding sequence was added...

article

Biofilm formation in Gram‐positives as an answer to combined salt and metal stress

Marie Harpke, Erika Kothe

Journal of Basic Microbiology > 63 > 8 > 888 - 896

Biofilm formation can lead to tolerance against stressors like antibiotics, toxic metals, salts, and other environmental contaminants. Halo‐ and metal‐tolerant bacilli and actinomycete strains isolated from a former uranium mining and milling site in Germany were shown to form biofilm in response to salt and metal treatment; specifically, Cs and Sr exposition led to biofilm formation. Since the strains...

article

Pathways to polar adaptation in fishes revealed by long‐read sequencing

Scott Hotaling, Thomas Desvignes, John S. Sproul, Luana S. F. Lins, more

Molecular Ecology > 32 > 6 > 1381 - 1397

Long‐read sequencing is driving a new reality for genome science in which highly contiguous assemblies can be produced efficiently with modest resources. Genome assemblies from long‐read sequences are particularly exciting for understanding the evolution of complex genomic regions that are often difficult to assemble. In this study, we utilized long‐read sequencing data to generate a high‐quality...

article

Constitutively enhanced genome integrity maintenance and direct stress mitigation characterize transcriptome of extreme stress‐adapted Arabidopsis halleri

Gwonjin Lee, Hassan Ahmadi, Julia Quintana, Lara Syllwasschy, more

The Plant Journal > 108 > 4 > 896 - 911

Heavy metal‐rich toxic soils and ordinary soils are both natural habitats of Arabidopsis halleri, a diploid perennial and obligate outcrosser in the sister clade of the genetic model plant Arabidopsis thaliana. The molecular divergence underlying survival in sharply contrasting environments is unknown. Here we comparatively address metal physiology and transcriptomes of A. halleri originating from...

article

Salt to conserve: a review on the ecology and preservation of hypersaline ecosystems

Mattia Saccò, Nicole E. White, Chris Harrod, Gonzalo Salazar, more

Biological Reviews > 96 > 6 > 2828 - 2850

When it comes to the investigation of key ecosystems in the world, we often omit salt from the ecological recipe. In fact, despite occupying almost half of the volume of inland waters and providing crucial services to humanity and nature, inland saline ecosystems are often overlooked in discussions regarding the preservation of global aquatic resources of our planet. As a result, our knowledge of...

article

The Catalytic Mechanism of the Retaining Glycosyltransferase Mannosylglycerate Synthase

Pedro Ferreira, Pedro A. Fernandes, Maria J. Ramos

Chemistry – A European Journal > 27 > 56 > 13998 - 14006

To protect their intracellular proteins, extremophile microorganisms synthesize molecules called compatible solutes. These molecules are the result of the attachment of a small negatively charged molecule to a sugar molecule. It has been found that these molecules, not only protect the microorganism against osmotic stress but also against other extreme conditions. They can also confer protection against...

article

Angiosperms at the edge: Extremity, diversity, and phylogeny

Ryan A. Folk, Carolina M. Siniscalchi, Douglas E. Soltis

Plant, Cell & Environment > 43 > 12 > 2871 - 2893

A hallmark of flowering plants is their ability to invade some of the most extreme and dynamic habitats, including cold and dry biomes, to a far greater extent than other land plants. Recent work has provided insight to the phylogenetic distribution and evolutionary mechanisms which have enabled this success, yet needed is a synthesis of evolutionary perspectives with plant physiological traits, morphology,...

article

N‐glycosylation in Archaea—New roles for an ancient posttranslational modification

Jerry Eichler

Molecular Microbiology > 114 > 5 > 735 - 741

Genome analysis points to N‐glycosylation as being an almost universal posttranslational modification in Archaea. Although such predictions have been confirmed in only a limited number of species, such studies are making it increasingly clear that the N‐linked glycans which decorate archaeal glycoproteins present diversity in terms of both glycan composition and architecture far beyond what is seen...

article

Evidence that tolerance of Eutrema salsugineum to low phosphate conditions is hard-wired by constitutive metabolic and root-associated adaptations

Vera Marjorie Elauria Velasco, Solmaz Irani, Anna Axakova, Rosa Silva, more

Planta > 2020 > 251 > 1 > 1-17

Main conclusionThe extremophyteEutrema salsugineum(Yukon ecotype) has adapted to an environment low in available phosphate through metabolic and root-associated traits that enables it to efficiently retrieve, use, and recycle phosphorus. Abstract Efficient phosphate (Pi) use by plants would increase crop productivity under Pi-limiting conditions and reduce our reliance on Pi applied as fertilizer...

article

Cyanidium chilense (Cyanidiophyceae, Rhodophyta) from tuff rocks of the archeological site of Cuma, Italy

Claudia Ciniglia, Paola Cennamo, Antonino De Natale, Mario De Stefano, more

Phycological Research > 67 > 4 > 311 - 319

Phlegrean Fields is a large volcanic area situated southwest of Naples (Italy), including both cave and thermoacidic habitats. These extreme environments host the genus Cyanidium; the species C. chilense represents a common phototrophic microorganism living in anthropogenic caves. With a view to provide a comprehensive characterization for a correct taxonomic classification, morpho‐ultrastructural...

article

The diversity, distribution, and pathogenic potential of cultivable fungi present in rocks from the South Shetlands archipelago, Maritime Antarctica

Isabel M. S. Alves, Vívian N. Gonçalves, Fabio S. Oliveira, Carlos E. G. R. Schaefer, more

Extremophiles > 2019 > 23 > 3 > 327-336

We studied the molecular taxonomy and diversity of cultivable rock fungi from Antarctic islands. From 50 rock samples, 386 fungal isolates were obtained and identified as 33 taxa of 20 genera. The genera Cladophialophora, Cladosporium, Cyphellophora, Eichleriella, Paracladophialophora, and Penicillium displayed the highest densities. Ecological diversity indices showed that the fungal assemblages...

article

High diversity of thermophilic cyanobacteria in Rupite hot spring identified by microscopy, cultivation, single-cell PCR and amplicon sequencing

Otakar Strunecký, Karel Kopejtka, Franz Goecke, Jürgen Tomasch, more

Extremophiles > 2019 > 23 > 1 > 35-48

Genotypic and morphological diversity of cyanobacteria in the Rupite hot spring (Bulgaria) was investigated by means of optical microscopy, cultivation, single-cell PCR, and 16S rRNA gene amplicon sequencing. Altogether, 34 sites were investigated along the 71–39 °C temperature gradient. Analysis of samples from eight representative sites shown that Illumina, optical microscopy, and Roche 454 identified...

article

Demonstrating the viability of halolipase production at a mechanically stirred tank biological reactor

Sergio Colangiuli, Ana Rodríguez, María Ángeles Sanromán, Francisco J. Deive

Bioresource Technology > 2018 > 263 > C > 334-339

The definition of halophiles as “the coming stars of industrial biotechnology” in a recent review demands new research efforts for their efficient production at bioreactor scale. In this sense, the scarcity of information about halolipases production has furthered the research on the viability of Halomonas sp. LM1C culture in a mechanically stirred bioreactor. The operating conditions have been optimized...

article

Recent Advances in Halophilic Protozoa Research

Tommy Harding, Alastair G. B. Simpson

Journal of Eukaryotic Microbiology > 65 > 4 > 556 - 570

Most research on microorganisms adapted to hypersaline habitats has focused on Archaea and Bacteria, with microbial eukaryotes receiving much less attention. Over the past 15 yr, our knowledge of phagotrophic microbial eukaryotes, i.e. protozoa, from hypersaline habitats has greatly improved through combinations of microscopy, molecular phylogenetics, environmental sequencing, transcriptomics and...

article

Fungal diversity in the Atacama Desert

Iara F. Santiago, Vívian N. Gonçalves, Benito Gómez-Silva, Alexandra Galetovic, more

Antonie van Leeuwenhoek > 2018 > 111 > 8 > 1345-1360

Fungi are generally easily dispersed, able to colonise a wide variety of substrata and can tolerate diverse environmental conditions. However, despite these abilities, the diversity of fungi in the Atacama Desert is practically unknown. Most of the resident fungi in desert regions are ubiquitous. Some of them, however, seem to display specific adaptations that enable them to survive under the variety...

article

Towards a sustainable biobased industry – Highlighting the impact of extremophiles

Anna Krüger, Christian Schäfers, Carola Schröder, Garabed Antranikian

New Biotechnology > 2018 > 40 > PA > 144-153

The transition of the oil-based economy towards a sustainable economy completely relying on biomass as renewable feedstock requires the concerted action of academia, industry, politics and civil society. An interdisciplinary approach of various fields such as microbiology, molecular biology, chemistry, genetics, chemical engineering and agriculture in addition to cross-sectional technologies such...

article

Pervasiveness of UVC₂₅₄-resistant Geobacillus strains in extreme environments

Courtney Carlson, Nitin K. Singh, Mohit Bibra, Rajesh K. Sani, more

Applied Microbiology and Biotechnology > 2018 > 102 > 4 > 1869-1887

We have characterized a broad collection of extremophilic bacterial isolates from a deep subsurface mine, compost dumping sites, and several hot spring ecosystems. Spore-forming strains isolated from these environments comprised both obligate thermophiles/thermotolerant species (growing at > 55 °C; 240 strains) and mesophiles (growing at 15 to 40 °C; 12 strains). An overwhelming abundance of Geobacillus...

article

Determinants of thermostability in the cytochrome P450 fold

Kurt L. Harris, Raine E.S. Thomson, Silja J. Strohmaier, Yosephine Gumulya, more

Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics > 2018 > 1866 > 1 > 97-115

Cytochromes P450 are found throughout the biosphere in a wide range of environments, serving a multitude of physiological functions. The ubiquity of the P450 fold suggests that it has been co-opted by evolution many times, and likely presents a useful compromise between structural stability and conformational flexibility. The diversity of substrates metabolized and reactions catalyzed by P450s makes...

Publication date

Last 3 months (1)
Last year (2)
Last 3 years (8)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

Content availability

Available (150)
None (3)

Publication type

article (151)
book (2)

INFONA - science communication portal

Search results

Experimental evolution of extremotolerant and extremophilic fungi under osmotic stress

Lipid turnover through lipophagy in the newly identified extremophilic green microalga Chlamydomonas urium

Characterization of ferredoxins from the thermophilic, acetogenic bacterium Thermoanaerobacter kivui

Biofilm formation in Gram‐positives as an answer to combined salt and metal stress

Pathways to polar adaptation in fishes revealed by long‐read sequencing

Constitutively enhanced genome integrity maintenance and direct stress mitigation characterize transcriptome of extreme stress‐adapted Arabidopsis halleri

Salt to conserve: a review on the ecology and preservation of hypersaline ecosystems

The Catalytic Mechanism of the Retaining Glycosyltransferase Mannosylglycerate Synthase

Angiosperms at the edge: Extremity, diversity, and phylogeny

N‐glycosylation in Archaea—New roles for an ancient posttranslational modification

Evidence that tolerance of Eutrema salsugineum to low phosphate conditions is hard-wired by constitutive metabolic and root-associated adaptations

Cyanidium chilense (Cyanidiophyceae, Rhodophyta) from tuff rocks of the archeological site of Cuma, Italy

The diversity, distribution, and pathogenic potential of cultivable fungi present in rocks from the South Shetlands archipelago, Maritime Antarctica

High diversity of thermophilic cyanobacteria in Rupite hot spring identified by microscopy, cultivation, single-cell PCR and amplicon sequencing

Demonstrating the viability of halolipase production at a mechanically stirred tank biological reactor

Recent Advances in Halophilic Protozoa Research

Fungal diversity in the Atacama Desert

Towards a sustainable biobased industry – Highlighting the impact of extremophiles

Pervasiveness of UVC₂₅₄-resistant Geobacillus strains in extreme environments

Determinants of thermostability in the cytochrome P450 fold

Filter options

Publication date

Content availability

Publication type

Publication language

Keywords

Data set

INFONA - science communication portal

Search results

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Content availability

Publication type

Publication language

Keywords

Data set

Reporting an error / abuse

Sending the report failed

Accessibility options