M
Mariela Speranza
Researcher at Spanish National Research Council
Publications - 17
Citations - 1483
Mariela Speranza is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Lignin & Kraft process. The author has an hindex of 10, co-authored 17 publications receiving 1370 citations. Previous affiliations of Mariela Speranza include University of the Republic.
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Journal ArticleDOI
Biodegradation of lignocellulosics: microbial, chemical, and enzymatic aspects of the fungal attack of lignin.
Ángel T. Martínez,Mariela Speranza,Francisco J. Ruiz-Dueñas,Patricia Ferreira,Susana Camarero,Francisco Guillén,Francisco Guillén,María Jesús Martínez,Ana Gutiérrez,José C. del Río +9 more
TL;DR: Broadening the knowledge of lignocellulose biodegradation processes should contribute to better control of wood-decaying fungi, as well as to the development of new biocatalysts of industrial interest based on these organisms and their enzymes.
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Early evolution and ecology of camouflage in insects
Ricardo Pérez-de la Fuente,Xavier Delclòs,Enrique Peñalver,Mariela Speranza,Jacek Wierzchos,Carmen Ascaso,Michael S. Engel +6 more
TL;DR: An exceptional discovery of a green lacewing larva in Early Cretaceous amber from Spain with specialized cuticular processes forming a dorsal basket that carry a dense trash packet is reported, providing direct evidence of an early acquisition of a sophisticated behavioral suite in stasis for over 110 million years and an ancient plant–insect interaction.
Journal ArticleDOI
Lignin attack during eucalypt wood decay by selected basidiomycetes: a Py-GC/MS study
J.C. del Río,Mariela Speranza,Mariela Speranza,Ana Gutiérrez,María Jesús Martínez,Ángel T. Martínez +5 more
TL;DR: In this paper, the degradation patterns of Eucalyptus globulus wood by several basidiomycetes isolated from naturally-decayed wood in eucallypt plantations in Uruguay were studied by analytical pyrolysis coupled to gas chromatography/mass spectrometry.
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Enzymatic removal of free and conjugated sterols forming pitch deposits in environmentally sound bleaching of eucalypt paper pulp.
Ana Gutiérrez,José C. del Río,David Ibarra,Jorge Rencoret,Javier Romero,Mariela Speranza,Susana Camarero,María Jesús Martínez,Ángel T. Martínez +8 more
TL;DR: The suitability of oxidative enzymes in efficiently removing sterols from eucalypt pulps is revealed and pulp brightness was improved due to the simultaneous removal of lignin by the laccase-mediator treatment.
Journal ArticleDOI
Fossil protists and fungi in amber and rock substrates
Carmen Ascaso,Jacek Wierzchos,Mariela Speranza,Juan Carlos Gutiérrez,Ana Martín González,Asunción de los Ríos,Jesús Alonso +6 more
TL;DR: The present observations suggest that a well-preserved cell ultrastructure is the best criterion of biogenicity.