Abstract Sugarcane straw has become an available lignocellulosic biomass since the progressive introduction of the non-burning harvest in Brazil. Besides keeping this biomass in the field, it can be used as a feedstock in thermochemical or biochemical conversion processes. This makes feasible its incorpo...
Candida/metabolismo,
Saccharum/microbiología,
Xilitol/biosíntesis,
Medios de Cultivo/metabolismo,
Fermentación,
Hidrólisis,
Tallos de la Planta/química,
Tallos de la Planta/metabolismo,
Tallos de la Planta/microbiología,
Saccharum/química,
Saccharum/metabolismo,
Xilosa/metabolismo
Abstract The aim of this study was to standardize a diagnosis procedure to detect Mycobacterium avium subsp. paratuberculosis (Map) DNA in raw cow milk samples under field conditions. A procedure that combines both immunomagnetic separation and IS900 -PCR detection (IMS-IS1 PCR) was employed on milk samp...
Enfermedades de los Bovinos/microbiología,
Separación Inmunomagnética/métodos,
Leche/microbiología,
Mycobacterium avium subsp. paratuberculosis/aislamiento & purificación,
Paratuberculosis/microbiología,
Reacción en Cadena de la Polimerasa/métodos,
Argentina,
Bovinos,
Enfermedades de los Bovinos/diagnóstico,
Enfermedades de los Bovinos/fisiopatología,
Heces/microbiología,
Lactancia,
Leche/química,
Mycobacterium avium subsp. paratuberculosis/química,
Mycobacterium avium subsp. paratuberculosis/genética,
Paratuberculosis/diagnóstico,
Paratuberculosis/fisiopatología
Abstract Metabolites of mycoparasitic fungal species such as Trichoderma harzianum 88 have important biological roles. In this study, two new ketoacyl synthase (KS) fragments were isolated from cultured Trichoderma harzianum 88 mycelia using degenerate primers and analysed using a phylogenetic tree. The ...
Proteínas Fúngicas/metabolismo,
Sintasas Poliquetidas/metabolismo,
Trichoderma/enzimología,
Secuencia de Aminoácidos,
Proteínas Fúngicas/química,
Proteínas Fúngicas/genética,
Regulación Fúngica de la Expresión Génica,
Datos de Secuencia Molecular,
Micelio/enzimología,
Micelio/genética,
Enfermedades de las Plantas/microbiología,
Sintasas Poliquetidas/química,
Sintasas Poliquetidas/genética,
Alineación de Secuencia,
Trichoderma/clasificación,
Trichoderma/genética
Abstract Citrus canker, caused by the Gram-negative bacterium Xanthomonas citri subsp. citri (Xac), is one of the most devastating diseases to affect citrus crops. There is no treatment for citrus canker; effective control against the spread of Xac is usually achieved by the elimination of affected plant...
Proteínas Bacterianas/genética,
Proteínas Recombinantes de Fusión/genética,
Xanthomonas/genética,
Proteínas Bacterianas/aislamiento & purificación,
Proteínas Bacterianas/metabolismo,
Citrus/microbiología,
Vectores Genéticos/genética,
Vectores Genéticos/metabolismo,
Sistemas de Lectura Abierta,
Enfermedades de las Plantas/microbiología,
Proteínas Recombinantes de Fusión/aislamiento & purificación,
Proteínas Recombinantes de Fusión/metabolismo,
Xanthomonas/química,
Xanthomonas/metabolismo
Abstract A Plackett–Burman Factorial Design of 16 experiments was conducted to assess the influence of nine factors on the production of lipases by filamentous fungi. The factors investigated were bran type (used as the main carbon source), nitrogen source, nitrogen source concentration, inducer, i...
Abstract Little is known regarding how the increased diversity of nitrogen-fixing bacteria contributes to the productivity and diversity of plants in complex communities. However, some authors have shown that the presence of a diverse group of nodulating bacteria is required for different plant species t...
Abstract Fourteen Trichoderma isolates were evaluated for their tolerance to two heavy metals, nickel and cadmium. Three isolates, MT-4, UBT-18, and IBT-I, showed high levels of nickel tolerance, whereas MT-4, UBT-18, and IBT-II showed better tolerance of cadmium than the other isolates. Under nickel str...
Cadmio/metabolismo,
Níquel/metabolismo,
Trichoderma/metabolismo,
Cinética,
Níquel/química,
Microbiología del Suelo,
Biodegradación Ambiental,
Cadmio/química,
Trichoderma/clasificación,
Trichoderma/crecimiento & desarrollo,
Trichoderma/aislamiento & purificación
Abstract Considering the importance of lignocellulose macrophyte-derived for the energy flux in aquatic ecosystems and the nutrient concentrations as a function of force which influences the decomposition process, this study aims to relate the enzymatic activity and lignocellulose hydrolysis in different...
Araceae/metabolismo,
Bacterias/enzimología,
Proteínas Bacterianas/metabolismo,
Celulasa/metabolismo,
Agua Dulce/química,
Lignina/metabolismo,
Paspalum/metabolismo,
Araceae/crecimiento & desarrollo,
Araceae/microbiología,
Brasil,
Carbono/metabolismo,
Celulosa/genética,
Celulosa/metabolismo,
Ecosistema,
Agua Dulce/microbiología,
Paspalum/crecimiento & desarrollo,
Paspalum/microbiología
Abstract The development of showerhead biofilms exposes the user to repeated contact with potentially pathogenic microbes, yet we know relatively little about the content of these aggregates. The aim of the present study was to examine the microbial content of tape-like films found protruding from a dome...
Abstract Algae can tolerate a broad range of growing conditions but extreme conditions may lead to the generation of highly dangerous reactive oxygen species (ROS), which may cause the deterioration of cell metabolism and damage cellular components. The antioxidants produced by algae alleviate the harmfu...
Antioxidantes/metabolismo,
Spirulina/metabolismo,
Antioxidantes/química,
Clorofila/metabolismo,
Concentración de Iones de Hidrógeno,
Oxidación-Reducción,
Fenoles/química,
Fenoles/metabolismo,
Ficobiliproteínas/química,
Ficobiliproteínas/metabolismo,
Spirulina/química,
Spirulina/crecimiento & desarrollo
