Results 51 to 60 of about 977,545 (224)

Antibiotic Resistance Genes in Phage Particles from Antarctic and Mediterranean Seawater Ecosystems

Microorganisms, 2020
Anthropogenic activities are a key factor in the development of antibiotic resistance in bacteria, a growing problem worldwide. Nevertheless, antibiotics and resistances were being generated by bacterial communities long before their discovery by ...
Pedro Blanco-Picazo, Gabriel Roscales, Daniel Toribio-Avedillo, Clara Gómez-Gómez, Conxita Avila, Elisenda Ballesté, Maite Muniesa, Lorena Rodríguez-Rubio   +7 more
doaj   +1 more source

From apex to base: Uncovering spatial metabolic adaptation in Antarctic mosses

Bulletin of the Korean Chemical Society, EarlyView.
Antarctic mosses survive extreme cold, desiccation, UV exposure, and oxidative stress. We analyzed three species by separating apical, middle, and basal zones. Each zone showed distinct metabolite patterns and biological roles, revealing spatial metabolic specialization. The results suggest that whole‐plant survival depends on coordinated contributions
Fatima Tuz Zahra, Yelim Lee, Hyoungseok Lee, Amancio de Souza, Manhoi Hur, Katayoon Dehesh, Jungeun Lee, Sunghwan Kim   +7 more
wiley   +1 more source

The pangenome of (Antarctic) Pseudoalteromonas bacteria: evolutionary and functional insights

BMC Genomics, 2017
Pseudoalteromonas is a genus of ubiquitous marine bacteria used as model organisms to study the biological mechanisms involved in the adaptation to cold conditions. A remarkable feature shared by these bacteria is their ability to produce secondary metabolites with a strong antimicrobial and antitumor activity. Despite their biotechnological relevance,
Emanuele Bosi, Marco Fondi, Valerio Orlandini, Elena Perrin, Isabel Maida, Donatella de Pascale, Maria Luisa Tutino, Ermenegilda Parrilli, Angelina Lo Giudice, Alain Filloux, Renato Fani   +10 more
openaire   +6 more sources

Fourteen degrees of latitude and a continent apart: comparison of lichen activity over two years at continental and maritime Antarctic sites [PDF]

, 2010
There are marked declines in precipitation, mean temperatures and the number of lichen species with increasing latitude in Antarctica. However, it is not known which factors are the predominant controllers of biodiversity changes.
Burkhard Schroeter, Green, T.G. Allan, Schlensog, Mark, T.G. Allan Green, Sancho, Leopoldo G., Stefan Pannewitz, Leopoldo G. Sancho, Pannewitz, Stefan, Schroeter, Burkhard, Mark Schlensog   +9 more
core   +1 more source

ANTIFUNGAL ACTIVITY SCREENING OF ANTARCTIC ACTINOBACTERIA AGAINST PHYTOPATHOGENIC FUNGI

Acta Biológica Colombiana, 2020
The extreme weather conditions in the Antarctic have exerted selective pressures favoring differential features in bacteria to survive this untapped environment (i.e., antibiotic molecules).
Andrés Santos, Kattia Núñez-Montero, Claudio Lamilla, Mónica Pavez, Damián Quezada-Solís, Leticia Barrientos   +5 more
doaj   +1 more source

Potential for resistance to freezing by non-virulent bacteria isolated from Antarctica

Anais da Academia Brasileira de Ciências, 2022
Industrial sectors are searching for new compounds to improve the preservation of food and blood, human tissues, and fuels used at low temperatures. Antarctic microorganisms have mechanisms to overcome injuries caused by low temperatures, making them ...
ELIZANDRA R.B. MOREIRA, JÚLIA R. OTTONI, VALÉRIA M. DE OLIVEIRA, MICHEL RODRIGO Z. PASSARINI   +3 more
doaj   +1 more source

Partners or passengers? Revisiting the association between diatoms and aquatic animals

Biological Reviews, EarlyView.
ABSTRACT Numerous studies have revealed the importance of research on the communities capable of colonizing animal surfaces (epibionts) and the animals on which they live (basibionts). Very few studies have considered epizoic diatoms, and there are gaps and biases in our knowledge, including the choice of basibionts, the methods used, and the habitats ...
Gianluca Vacca, Elisa Falasco, Francesca Bona   +2 more
wiley   +1 more source

Emerging spatial patterns in Antarctic prokaryotes [PDF]

, 2015
Recent advances in knowledge of patterns of biogeography in terrestrial eukaryotic organisms have led to a fundamental paradigm shift in understanding of the controls and history of life on land in Antarctica, and its interactions over the long term with
Chong, Chun Wie, Convey, Peter, Pearce, David, Pearce, David A., Chun-Wie Chong, Chong, Chun-Wie, David A. Pearce, Peter Convey   +7 more
core   +1 more source

Unveiling microbial guilds and symbiotic relationships in Antarctic sponge microbiomes

Scientific Reports
Marine sponges host diverse microbial communities. Although we know many of its ecological patterns, a deeper understanding of the polar sponge holobiont is still needed.
Mario Moreno-Pino, Maria F. Manrique-de-la-Cuba, Marileyxis López-Rodríguez, Génesis Parada-Pozo, Susana Rodríguez-Marconi, Catherine Gérikas Ribeiro, Patricio Flores-Herrera, Mariela Guajardo, Nicole Trefault   +8 more
doaj   +1 more source

Characterization and Hydrocarbon Degradation Potential of Variovorax sp. Strain N23 Isolated from the Antarctic Soil

Microbiology Research, 2023
Increasing pollution has significantly threatened the Antarctic ecosystem. The contamination of hydrocarbons has drawn a considerable amount of attention owing to their toxicity, recalcitrance, and persistence.
Jinyan Liu, Zhisong Cui, Tong Hao, Yingchao Li, Xiao Luan, Ke Feng, Li Zheng   +6 more
doaj   +1 more source