Sergio Leiva
Austral University of Chile
16 Papers
52 Citations
Sergio Leiva is an academic researcher from Austral University of Chile. The author has contributed to research in topics: Paratuberculosis & Microbacterium. The author has an hindex of 7, co-authored 16 publications.
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Papers
Diversity of pigmented Gram-positive bacteria associated with marine macroalgae from Antarctica.
TL;DR: The results indicate that a diverse community of pigmented Gram-positive bacteria is associated with Antartic macroalgae and suggest its potential as a promising source of antimicrobial and pigmented natural compounds.
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Phylogeny and bioactivity of epiphytic Gram-positive bacteria isolated from three co-occurring antarctic macroalgae.
TL;DR: The results highlight the importance of Antarctic macroalgae as a rich source of Gram-positive bacterial diversity and potentially novel species, and a reservoir of bacteria producing biologically active compounds with pharmacological potential.
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Herd-level prevalence of Map infection in dairy herds of southern Chile determined by culture of environmental fecal samples and bulk-tank milk qPCR.
TL;DR: It is confirmed that Map infection is wide spread in dairy herds in Southern Chile with a rough herd-level prevalence of 28-100% depending on the herd size, and that IS900 PCR on bulk-tank milk samples is more sensitive than environmental fecal culture to detect Map-infected dairy herds.
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European Hares in Chile: A Different Lagomorph Reservoir for Mycobacterium avium subsp. paratuberculosis?
Miguel Salgado,Elizabeth J. B. Manning,Gustavo Monti,Göran Bölske,Robert Söderlund,Manuel Ruiz,Enrique Paredes,Sergio Leiva,Herbert Van Kruningen,J. Kruze +9 more
TL;DR: Although the rabbit population studied in Scotland appears to function as a Map reservoir, the hares studied in Chile appear to be a dead-end host, serving only as potential mechanical vectors for the organism.
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Variación estacional y potencial enzimático de microhongos asociados con la descomposición de hojarasca de Nothofagus pumilio
TL;DR: Para determinar los potenciales degradativos de los aislamientos, se analizaron in vitro las actividades de amilasa, celulasa, pectinasa, proteasa, lacasa, oxidasa extracelular, peroxidasa, citocromo oxidasa, fosfatasa, esterasa y tirosinasa.