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Complex species structure of (Digenea: Lecithasteridae), a fish parasite in the Arctic and Pacific Northwest.
J Helminthol
January 2025
Center of Parasitology of A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Leninskii Prospect 33, 117071, Moscow, Russia.
Studying complexes of cryptic or pseudocryptic species opens new horizons for the understanding of speciation processes, an important yet vague issue for the digeneans. We investigated a hemiuroidean trematode across a wide geographic range including the northern European seas (White, Barents, and Pechora), East Siberian Sea, and the Pacific Northwest (Sea of Okhotsk and Sea of Japan). The goals were to explore the genetic diversity within through mitochondrial ( and genes) and ribosomal (ITS1, ITS2, 28S rDNA) marker sequences, to study morphometry of maritae, and to revise the life cycle data.
View Article and Find Full Text PDFA new mesophilic member of the Chloroflexota phylum 'Ca. Сhloroploca septentrionalis' from the meromictic lake Bol'shie Khruslomeny separated from the White Sea.
FEMS Microbiol Lett
January 2025
K.A. Timiryazev Institute of Plant Physiology of the Russian Academy of Sciences, Botanicheskaya St. 35, Moscow 127276, Russian Federation.
A new filamentous phototrophic bacterium Khr17 was isolated as an enrichment culture from the brackish polar lake Bol'shie Khruslomeny. The organism was a halotolerant, strictly anaerobic phototroph possessing photosystem II. Sulfide was required for phototrophic growth.
View Article and Find Full Text PDFPerformance of the VITEK® MS system for the identification of filamentous fungi in a microbiological laboratory in Chile.
PLoS One
December 2024
Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile.
Filamentous fungi are an emergent cause of severe infections in immunocompromised patients. Timely and accurate identification is crucial to initiate appropriate therapy. Traditional identification methods are time-consuming, labor-intensive, and operator-dependent.
View Article and Find Full Text PDFNovel polymycoviruses are encapsidated in filamentous virions.
J Virol
December 2024
National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Wuhan, China.
is a relatively new viral family that was established nearly 5 years ago, but their viral morphologies (naked or encapsidated) remain controversial since only one member namely, filamentous virus 1 (CcFV1), was identified as being encapsidated in filamentous virions. Here, three novel double-stranded RNA (dsRNA) viruses belonging to the family were identified in three phytopathogenic fungal strains and tentatively named -sinensis polymycovirus 1 (PcsPmV1), and polymycovirus 1 and 2 (PhcPmV1 and 2), respectively. PcsPmV1 and PhcPmVs have five or six genomic dsRNAs, ranging from 1,055 to 2,405 bp, encoding five or seven putative open reading frames (ORFs), of which ORF1 encodes an RNA-dependent RNA polymerase, ORF5 encodes a prolein-alanine-serine-rich (P-A-S-rich) protein behaving as coat protein (CP); and dsRNAs 4 and 6 encode putative proteins with unknown functions and share no detectable identities with known viral sequences.
View Article and Find Full Text PDFBiological evaluation of semi-synthetic isoindolinone isomers produced by .
Front Fungal Biol
November 2024
Instititue of Food Chemistry, University of Münster, Münster, Germany.
Article Synopsis
- - The filamentous fungus produces meroterpenoid secondary metabolites, including compounds that can be transformed into isoindolinones using primary amines, revealing their potential for semi-synthetic modification.
- - This study focuses on the reaction of acetoxystachybotrydial acetate with l-tryptophan and tryptamine, discovering rare isomeric structures and investigating their unique behaviors through various analytical techniques.
- - The compounds were assessed for biological activities, including cytotoxicity and metabolism, where one isomer demonstrated lower cytotoxicity, faster metabolism, and higher activity compared to the original substance, highlighting the potential for further research and application.
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