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A novel bacterium, designated 19SA41, was isolated from the air of the Icelandic volcanic island Surtsey. Cells of strain 19SA41 are Gram-stain-negative, strictly aerobic, non-motile rods and form pale yellow-pigmented colonies. The strain grows at 4-30 °C (optimum, 22 °C), at pH 6-10 (optimum, pH 7.

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On the nomenclatural status of the prokaryotic name (Blackall 1989) Chun . 1997. Request for an Opinion.

Int J Syst Evol Microbiol

January 2025

Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan, ROC.

In 1997, the name (Blackall 1989) comb. nov. was proposed by Chun on transfer of the species to the newly established genus as its type species.

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In this work, two new compounds, N-(4,5-dimethoxyphenyl)adenine and N-(3,5-di-trifluoromethylphenyl)adenine, with a broad range of antiviral activity against RNA viruses were identified. We showed that these compounds exhibit pronounced antiviral activity against human poliovirus types 1, 2, and 3, belonging to enterovirus C species. Both compounds also demonstrated pronounced antiviral activity against Coxsackie viruses B3, B5, and B6, belonging to enterovirus B species.

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Environmental thresholds of semiaquatic bugs (Heteroptera, Gerromorpha) as an indicator of environmental change in Amazon streams.

Environ Monit Assess

January 2025

Programa de Pós-Graduação em Ecologia (PPGECO), Universidade Federal do Pará (UFPA), Instituto de Ciências Biológicas (UFPA), Belém, Pará, Brazil.

Freshwater ecosystems under the influence of human activities are subject to multiple environmental stressors that lead to biodiversity loss and habitat modification. In recent years, various organisms have been used as bioindicators to detect environmental changes by their ability to perceive changes in community attributes. A good example is the semiaquatic bugs (Hemiptera, infra order Gerromorpha) that act as predators and are sensitive to subtle changes in environmental conditions.

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a β-proteobacterium, forms a nitrogen-fixing symbiosis with many species of the large legume genus as well as with common bean ( L.). are considered to have evolved nodulation independently from the well-studied α-proteobacteria symbionts of legumes.

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