Browsing by Title Facultad de Ciencias
Now showing items 3878-3897 of 8178
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(2011)The impact of recent habitat fragmentation on population genetic diversity and structure has often been studied, mainly related to anthropogenic causes; however its long-term effect has been much less evaluated. In this ...
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(1998)Stable red astaxanthin-producing transformants were obtained after genetic transformation of two Phaffia rhodozyma mutants. A yellow mutant, accumulating β-carotene, and an albino mutant, accumulating phytoene, from P. ...
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(1996)A wild Chilean population of coho salmon (Oncorhynchus kisutch (Walbaum, 1792)) was started using eggs imported from Oregon, U.S.A. A hatchery population was founded using eggs collected from this wild population, and a ...
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(Blackwell, 1999)Fitzroya cupressoides (alerce, Cupressaceae) is a large and exceptionally long-lived conifer, endemic to a restricted area of southern Chile and neighbouring areas of Argentina. As a result of its high economic value, ...
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(Springer, 2014)Background: The isolated watersheds of the southwestern Andean Altiplano constitute a natural laboratory to study the evolutionary divergence of freshwater biota. Field observations showed that Biomphalaria snails ...
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(1997)In this work we establish the chromosomal composition of a wild-type, one astaxanthin and two β-carotene overproducer strains of the red yeast Phaffin rhodozyma. The method used has been pulsed field gel electrophoresis, ...
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(Public Library Science, 2016)Glacial episodes of the Quaternary, and particularly the Last Glacial Maximum (LGM) drastically altered the distribution of the Southern-Hemisphere biota, principally at higher latitudes. The irregular coastline of Patagonia ...
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(Universidad de Chile, 2001)
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(National Academy of Sciences, 2020)Penguins are the only extant family of flightless diving birds. They currently comprise at least 18 species, distributed from polar to tropical environments in the Southern Hemisphere. The history of their diversification ...
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(Natl Acad Sciences, 2018)Patagonia was the last region of the Americas reached by humans who entered the continent from Siberia similar to 15,000-20,000 y ago. Despite recent genomic approaches to reconstruct the continental evolutionary history, ...
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(Sociedad de Biología de Chile, 2008-05-05)The cloning and nucleotide sequence of the genes (idi, crtE, crtYB, crtI and crtS) controlling the astaxanthin biosynthesis pathway of the wild-type ATCC 24230 strain of Xanthophyllomyces dendrorhous in their genomic and ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2006-04)The use of acidophilic, chemolithotrophic microorganisms capable of oxidizing iron and sulfur in industrial processes to recover metals from minerals containing copper, gold and uranium is a well established biotechnology ...
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(Universidad de Chile, 2020)La enfermedad de Chagas (ECh) es una zoonosis vectorial originaria del continente americano, causada por el protozoo parásito Trypanosoma cruzi, y transmitida por numerosas especies de insectos hematófagos de la familia ...
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(Universidad de Chile, 2022)Xanthomonas arboricola pv juglandis (Xaj) es el patógeno causante de la Peste Negra del nogal, enfermedad bacteriana responsable de las mayores pérdidas productivas del fruto. Su control se basa en el manejo cultural y ...
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(Universidad de Chile, 2005)Las floraciones algales son fenómenos naturales que ocurren normalmente en los mares y aguas dulces del mundo. Algunas de estas floraciones pueden ser nocivas para el hombre y mamíferos superiores, debido que algunas ...
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(Springer, 2019)This paper is an introduction to the fascinating world of Soergel bimodules and it should be accessible to a broad audience. We aim to help the reader feel comfortable with Soergel bimodules and to explain some of the ...
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(Emerald Group Publishing Ltd, 2018)Purpose This study aims to explore the complex relationship between post-earthquake reconstruction processes and gentrification in neighbourhoods of intermediate cities, calling on the critical role of recovery strategies ...
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(Blackwell, 2012)Aim Our aim in this study was to document the global biogeographic variation in the effects of soil microbes on the growth of Centaurea solstitialis (yellow starthistle; Asteraceae), a species that has been introduced ...
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(2012)Increasing research has attempted to clarify the links between animal personality and physiology. However, the mechanisms driving this association remain largely unknown, and knowledge of how ecological factors may affect ...
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(Oxford University Press, 2020)