Results 81 to 90 of about 9,152 (177)

Antimicrobial activity and resistance to UV-light by pigmented soil bacteria from Whalers Bay, Deception Island, Maritime Antarctica [PDF]

Anais da Academia Brasileira de Ciências
Microorganisms from the Antarctic continent have attracted attention due to their ability to produce bioactive secondary metabolites at low temperatures.
THAYNARA CRISTINA DE CARVALHO, LUIZ HENRIQUE ROSA, ALYSSON WAGNER F. DUARTE, MICHEL RODRIGO Z. PASSARINI   +3 more
doaj   +1 more source

Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents. [PDF]

Front Bioeng Biotechnol, 2022
Styczynski M, Biegniewski G, Decewicz P, Rewerski B, Debiec-Andrzejewska K, Dziewit L.   +5 more
europepmc   +1 more source

Manganese-Oxidizing Antarctic Bacteria (Mn-Oxb) Release Reactive Oxygen Species (ROS) as Secondary Mn(II) Oxidation Mechanisms to Avoid Toxicity. [PDF]

Biology (Basel), 2021
Jofré I, Matus F, Mendoza D, Nájera F, Merino C.   +4 more
europepmc   +1 more source

Enrichment, Isolation and Characterization of Heavy Metal-Tolerant Bacteria from Polar Lacustrine Sediments

Microorganisms
Polar areas are not exempt from anthropogenic pollution. Heavy metals have been detected in Arctic and Antarctic lakes. Bacteria, at the base of the food web, can possess the ability to adsorb or immobilize heavy metals in the environment and reduce ...
Alessandro C. Rappazzo, Alessia Marchetta, Carmen Rizzo, Maurizio Azzaro, Warren R. L. Cairns, Angelina Lo Giudice, Maria Papale   +6 more
doaj   +1 more source

Biological Activities of Ethanolic Extracts from Deep-Sea Antarctic Marine Sponges

Marine Drugs, 2013
We report on the screening of ethanolic extracts from 33 deep-sea Antarctic marine sponges for different biological activities. We monitored hemolysis, inhibition of acetylcholinesterase, cytotoxicity towards normal and transformed cells and growth ...
Dietrich Mebs, Silke Kauferstein, Dorte Janussen, Sandra Čivović, Rok Kosmina, Gašper Strugar, Urška Batista, Jerneja Ambrožič Avguštin, Tom Turk, Kristina Sepčić   +9 more
doaj   +1 more source

Molecular Detection of bla_TEM and bla_SHV Genes in ESBL-Producing Acinetobacter baumannii Isolated from Antarctic Soil

Microorganisms
The phenomenon of antimicrobial resistance (AMR) in cold environments, exemplified by the Antarctic, calls into question the assumption that pristine ecosystems lack clinically significant resistance genes.
Clara Pazos, Miguel Gualoto, Tania Oña, Elizabeth Velarde, Karen Portilla, Santiago Cabrera-García, Carlos Banchón, Gabriela Dávila, Fernanda Hernández-Alomia, Carlos Bastidas-Caldes   +9 more
doaj   +1 more source

Spatial distribution and diversity of the heterotrophic flagellates in the Cosmonaut Sea, Antarctic

Frontiers in Marine Science
As predators of bacteria and viruses and as food sources for microzooplankton, heterotrophic flagellates (HFs) play an important role in the marine micro-food web.
Zhiyi Chen, Zhiyi Chen, Hongyuan Zheng, Hongyuan Zheng, Yuan Gao, Musheng Lan, Guangfu Luo, Zhibo Lu, Jianfeng He   +8 more
doaj   +1 more source

Macrogenomic Analysis Reveals Soil Microbial Diversity in Different Regions of the Antarctic Peninsula

Microorganisms
(1) Background: The unique geographical and climatic conditions of the Antarctic Peninsula contribute to distinct regional ecosystems. Microorganisms are crucial for sustaining the local ecological equilibrium.
Jiangyong Qu, Xiaofei Lu, Tianyi Liu, Ying Qu, Zhikai Xing, Shuang Wang, Siluo Jing, Li Zheng, Lijun Wang, Xumin Wang   +9 more
doaj   +1 more source

An outsider on the Antarctic Peninsula: A new record of the non‐native moth Plodia interpunctella (Lepidoptera: Pyralidae)

Ecology and Evolution
We report the first record of the microlepidopteran Plodia interpunctella beyond the South Shetland Islands at the Chilean Yelcho scientific station (64°52′33.1428″ S; 63°35′1.9572″ W), Doumer Island, close to the west coast of the Antarctic Peninsula ...
Hugo A. Benitez, Carla Salinas, Jordan Hernández, Tamara Contador Mejías, Sanghee Kim, Claudia S. Maturana, Lorena Rebolledo, Laura M. Pérez, Paulo E. A. S. Câmara, Vinícius Alves Ferreira, Isabel Lobos, Alejandro Piñeiro, Peter Convey   +12 more
doaj   +1 more source

Optimization of Fermentation Conditions for Antarctic Bacteria and Investigation of Its Antimicrobial Mechanism Against <i>Klebsiella pneumoniae</i>. [PDF]

Microorganisms
Xu L, Li M, Huang Y, Mao Y, Cai S, Yang X, Hou X, Wang L, Quan C, Jin L.   +9 more
europepmc   +1 more source