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Registros recuperados: 38
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ANTAGONISM AGAINST VIBRIO CHOLERAE BY BACTERIAL DIFFUSIBLE COMPOUND IN THE FECAL MICROBIOTA OF RODENTS Rev. Microbiol.
Silva,Simone Helena da; Vieira,Enio Cardillo; Nicoli,Jacques Robert.
In an ex vivo agar plate assay, we monitored the appearance of an inhibitory halo against Vibrio cholerae from the feces of Wistar and Fischer rats aged 10 to 42 days. The frequency of Wistar rats showing halo increased from 0% (10 days) to a maximum of 80.0% (29 days) and then decreased to 53.3% (42 days). A similar pattern was obtained with Fischer rats but with a lower intensity (maximum frequency of 50.0% by day 36). In a separate experiment, when Wistar rats were fed a low-protein diet for 7 days, the inhibitory halo decreased drastically. Three apparently different colony morphologies were isolated from the dominant fecal microbiota: a facultative anaerobe (FAN) and two strict anaerobes (SAN). The ex vivo inhibitory test showed a halo around the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vibrio cholerae; Escherichia coli; Streptococcus intermedius; Antagonism; Rodents.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000300016
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Antagonistic and protective effects against Salmonella enterica serovar typhimurium by Lactobacillus murinus in the digestive tract of gnotobiotic mice BJM
Vasconcelos,Ana Luiza Sampaio; Nicoli,Jacques Robert; Nardi,Regina Maria Drummond.
In the present study, production of antagonistic substances by Lactobacillus murinus against enteropathogenic bacteria was evaluated in vivo as well as a possible protective effect against an oral challenge with Salmonella Typhimurium using a gnotobiotic animal model. A higher mean survival time (P < 0.05) was observed in L. murinus-associated animals (7.89 ± 3.83 days) when compared with the control ones (4.44 ± 0.73 days). Lactobacillus murinus exerted a potent antagonistic effect in vivo against S. sonnei and to a lesser extent against S. Typhimurium as revealed by inhibitory halos around the feces of Lactobacillus-associated animals. Diameters of inhibitory halos around intestinal contents increased along the intestine tract, following...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Salmonella; Lactobacillus; Gnotobiotic mice.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500007
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Antibiosis of Trichoderma spp strains native to northeastern Mexico against the pathogenic fungus Macrophomina phaseolina BJM
Mendoza,José Luis Hernández; Pérez,María Isabel Sánchez; Prieto,Juan Manuel González; Velásquez,Jesús DiCarlo Quiroz; Olivares,Jesús Gerardo García; Langarica,Homar Rene Gill.
Abstract Sampling of agricultural soils from the Mexican northeastern region was performed to detect Trichoderma spp., genetically characterize it, and assess its potential use as a biologic control agent against Macrophomina phaseolina. M. phaseolina is a phytopathogen that attacks over 500 species of cultivated plants and causes heavy losses in the regional sorghum crop. Sampling was performed immediately after sorghum or corn harvest in an area that was approximately 170 km from the Mexico-USA border. Sixteen isolates were obtained in total. Using colony morphology and sequencing the internal transcribed spacers (ITS) 1 and 4 of 18S rDNA, 14 strains were identified as Trichoderma harzianum, T. koningiopsis and T. virens. Subsequently, their antagonistic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macrophomina phaseolina; Antagonism; Hyperparasitism; Trichoderma.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401093
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Antifungal and proteolytic activities of endophytic fungi isolated from Piper hispidum Sw BJM
Orlandelli,Ravely Casarotti; Almeida,Tiago Tognolli de; Alberto,Raiani Nascimento; Polonio,Julio Cesar; Azevedo,João Lúcio; Pamphile,João Alencar.
Endophytes are being considered for use in biological control, and the enzymes they secrete might facilitate their initial colonization of internal plant tissues and direct interactions with microbial pathogens. Microbial proteases are also biotechnologically important products employed in bioremediation processes, cosmetics, and the pharmaceutical, photographic and food industries. In the present study, we evaluated antagonism and competitive interactions between 98 fungal endophytes and Alternaria alternata, Colletotrichum sp., Phyllosticta citricarpa and Moniliophthora perniciosa. We also examined the proteolytic activities of endophytes grown in liquid medium and conducted cup plate assays. The results showed that certain strains in the assemblage of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Competitive interaction; Dual culture; Cup plate; Protease.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000200359
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Antifungal potential of crude extracts of Trichoderma spp. Biota Neotropica
Marques,Eder; Martins,Irene; Mello,Sueli Correa Marques de.
Abstract Antibiosis is the mechanism by which certain microorganisms respond to the presence of others, secreting compounds or metabolites capable of inhibiting or impeding their development. The crude extract of Trichoderma contains a mixture of secondary compounds, which may show antibiotic effect, and has been used for the prospect of this fungus for biological control and other industrial purposes. Faced with the increasing demand of agriculture for ecologically compatible alternatives for the management of diseases, this work aimed to investigate the spectrum of action of Non-Volatile Metabolites (NVMs) of Trichoderma isolates against different plant pathogenic fungi. The antagonistic potential of NVMs was evaluated through the incorporation method of...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Secondary metabolites; Antagonism; Inhibition of mycelial growth; Plant pathogenic fungi.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100503
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Associative behaviour and antagonism of bovine rumen ciliate (Protista, Ciliophora) from Zona da Mata, Minas Gerais State, Brazil Zoologia
D'Agosto,Marta; Guedes,Paulo Marcos da Matta.
Aiming at obtaining the community profile and verifying the occurrence of antagonism and association among ciliates, samples of rumen content were analysed in 100 bovines soon after their death. The animals were killed at the Juiz de Fora Municipal slaughter house (Juiz de Fora, Minas Gerais State, Brazil) between August 1996 and May 1997. Ciliates occurred, respectively, in the following percents and samples number: Entodinium Stein, 1859 (50,48; 100), Diplodinium Schuberg, 1888 (5,59; 98), Eudiplodinium Dogiel, 1927 (6,91; 97), Ostracodinium Dogiel, 1927 (9,68; 95), hotricha Stein, 1859 (4,15; 93), Dasytricha Schuberg, 1888 (3,31; 93), Metadi nium Awerinzew &amp; Mutafowa, 1914 (3,06; 90), Eremoplastron Kofoid &amp; MacLennan. 1932 (7,39; 87),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rumen ciliate; Behaviour; Bovine; Community profile; Antagonism.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400011
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Bioassay for selection of biocontroller bacteria against bean common blight (Xanthomonas axonopodis pv. phaseoli) BJM
Zanatta,Zarela G.C.N.; Moura,Andréa B.; Maia,Luciano C.; Santos,André S. dos.
Emphasis has been given on selection of micro-organism for biological control. However, in order to evaluate the biological control potential of a great number of micro-organisms in a small period of time it is necessary to develop an efficient bioassay. Seven hundred and sixty bacterial isolates from different habitats, were selected for compatibility with Rhizobium leguminosarum bv. phaseoli (SEMIA 4077 e SEMIA 4080). Among them 596 isolates were ineffective against both rhizobia. Bean seeds immersed in suspension of each one of these isolates were agitated for 5 hours at 10ºC and sowed in non-sterilized soil. The plants were kept in greenhouse. After the development of cotyledonary and primary leaves, these were removed and bioassayed for Xanthomonas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Antagonism; Phaseolus vulgaris; Microbiolization.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300024
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Characterization of Bacillus isolates of potato rhizosphere from andean soils of Peru and their potential PGPR characteristics BJM
Calvo,Pamela; Ormeño-Orrillo,Ernesto; Martínez-Romero,Esperanza; Zúñiga,Doris.
Bacillus spp. are well known rhizosphere residents of many crops and usually show plant growth promoting (PGP) activities that include biocontrol capacity against some phytopatogenic fungi. Potato crops in the Andean Highlands of Peru face many nutritional and phytophatogenic problems that have a significant impact on production. In this context is important to investigate the natural presence of these microorganisms in the potato rhizosphere and propose a selective screening to find promising PGP strains. In this study, sixty three Bacillus strains isolated from the rhizosphere of native potato varieties growing in the Andean highlands of Peru were screened for in vitro antagonism against Rhizoctonia solani and Fusarium solani. A high prevalence (68%) of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacillus; Plant growth-promoting rhizobacteria; Potato; Antagonism; Phosphate solubilization; 16S rRNA gene.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400008
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Efecto de Trichoderma y Bacillus en la dinámica poblacional de Fusarium spp. en agave tequilero (Agave tequilana Weber. var. Azul) en Jalisco. Colegio de Postgraduados
Tlapal Bolaños, Bertha.
La marchitez es uno de los problemas fitosanitario más importantes en el agave tequilero Agave tequilana Weber var. Azul, enfermedad que esta asociada con varios microorganismos y que principalmente se presenta en plantaciones de más de 2 años de edad. Entre los posibles agentes causales de esta enfermedad se reportan a varias especies de Fusarium spp., así como a Thielaviopsis paradoxa. En el presente trabajo se planteó el de inocular con organismos benéficos plantas de agave tequilero que se usan como material propagativo en vivero para nuevas plantaciones, como parte de un manejo preventivo e integrado del cultivo. En este trabajo se estudió en vivero (Rancho El Indio, Tequila, Jalisco) y en campo, en plantaciones comerciales de agave en las...
Palavras-chave: Marchitez del agave; Fusarium spp.; Antagonismo; Supresividad; Agave wilt; Antagonism; Suppressive; Fitopatología; Doctorado.
Ano: 2013 URL: http://hdl.handle.net/10521/2117
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Effects of culture filtrates of endophytic fungi obtained from Piper aduncum L. on the growth of Mycobacterium tuberculosis Electron. J. Biotechnol.
Lima,Alita Moura de; Salem,Júlia Ignez; Souza,João Vicente Braga de; Cortez,Ana Claudia Alves; Carvalho,Clarice Maia; Chaves,Francisco Célio Maia; Veiga Junior,Valdir Florêncio da.
Substances that inhibit the growth of Mycobacterium tuberculosis could potentially be used as antibiotics. These substances could also be added to test culture media to improve the speed of tuberculosis diagnosis. The aim of this work was to investigate the influence of culture filtrates of endophytic fungi isolated from P. aduncum L. on the growth of M. tuberculosis. To achieve this objective, the following methodology was used: a) endophytic fungi were isolated from the leaves and stems of P. aduncum L.; b) the isolated fungi were submitted to submerged bioprocessing; c) culture filtrates from the bioprocess were assayed to evaluate their effect on the growth of M. tuberculosis. We isolated 315 fungal types, which represented 85 morphologies, from...
Tipo: Journal article Palavras-chave: Antagonism; Stimulation growth; Tuberculosis.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000400008
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Egg quality of hens fed different digestible lysine and arginine levels Rev. Bras. Ciênc. Avic.
Carvalho,FB de; Stringhini,JH; Matos,MS; Café,MB; Leandro,NSM; Gomes,NA; Santana,ES; Jardim Filho,RM.
This experiment aimed at evaluating the influence of the supplementation of digestible lysine and digestible arginine at different ratios in the diet fed to layers between 24 to 44 weeks of age on egg quality. In total,320 Lohmann LSL laying hens were allotted according to a completely randomized design in a 2 x 4factorial arrangement, consisting of two digestible lysine levels (700 or 900 mg/kg of diet) and four digestible arginine levels (700, 800, 900,or 1000 mg/kg of diet). Diets contained, therefore, digestible Lys:Arg ratios of 100, 114, 128, and 142 when the diet contained 700 mg digestible lysine per kg of diet, and 78, 89, 100, and 111 when 900 mg digestible lysine per kg was supplemented. The data obtained with digestible arginine levels were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Digestible amino acid; Egg components; Haugh units.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100063
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Endophytic fungi from Brachiaria grasses in Brazil and preliminary screening of Sclerotinia sclerotiorum antagonists Scientia Agricola
Gama,Danielly de Souza; Santos,Ítalo Augusto Férrer Melo; Abreu,Lucas Magalhães de; Medeiros,Flávio Henrique Vasconcelos de; Duarte,Whasley Ferreira; Cardoso,Patrícia Gomes.
ABSTRACT: Fungal endophytes of Brachiaria, a nonhost of Sclerotinia sclerotiorum, may harbor species with antagonistic effects against this plant pathogen. The objective of this work was to investigate the diversity of endophytic fungi associated with different Brachiaria species and hybrids and evaluate their potential to inhibit the plant pathogen S. sclerotiorum. Stem samples from 39 Brachiaria spp. plants were collected in pasture fields and experimental areas of three states of Brazil resulting in 74 endophytes isolated. Twenty-eight species were identified by sequences of the Internal Transcribed Spacer (ITS) and 18S rDNA regions. Paraconiothyrium sp. was the most abundant endophyte, accounting for 24 % (14 isolates) of total, and it was isolated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coniothyrium-like fungi; Urochloa; Tropical forage grasses; Antagonism; White mold.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000300200
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Evaluation of antagonistic activity of milk fermented with kefir grains of different origins BABT
Santos,João Paulo Victorino; Araújo,Tatiane Ferreira; Ferreira,Célia Lúcia de Luces Fortes; Goulart,Simone Machado.
In this study, the potential of kefir grains, obtained from three different towns/cities in the Southeast Region of Brazil to inhibit the growth of the five pathogenic microorganisms was evaluated. The samples showed the growth inhibition from 42.80-69.15 for Staphylococcus aureus ATCC 6538, 30.73-59.89 for Escherichia coli ATCC 11229, 44.99-73.05 for Salmonela typhi ATCC 6539, 41.45-54.18 for Listeria monocytogenes ATCC 15313 and 70.38-86.80 for Bacillus cereus RIBO 1222-173-S4. These results indicated that the kefir grains evaluated had antagonistic activity toward the different pathogens tested. The ability to inhibit, although differently depending on the regional microbiota, indicated a potential for their use as a functional food.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Kefir; Antagonism; Inhibitors; Functional foods.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000500014
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Fungal endophytes of Panicum maximum and Pennisetum purpureum: isolation, identification, and determination of antifungal potential R. Bras. Zootec.
Maia,Natália da Costa; Souza,Patrícia Nirlane da Costa; Godinho,Bárbara Temponi Vilarino; Moreira,Silvino Intra; Abreu,Lucas Magalhães de; Jank,Liana; Cardoso,Patrícia Gomes.
ABSTRACT This study aimed to isolate and identify endophytic fungi from the forage grass P. maximum and evaluate their ability to inhibit the growth of plant pathogenic fungi. One sample from P. purpureum grass was also included. Surface disinfected stem fragments were used for endophytic fungal isolation. One hundred and twenty-six endophytic fungi were isolated, of which 118 were from P. maximum and eight from P. purpureum. Morphological characteristics and internal transcribed spacer (ITS) and 18S (NS) sequence comparisons identified most isolated endophytic fungi as belonging to the phylum Ascomycota, with Sarocladium being the dominant genus. The isolates were subjected to in vitro antagonism tests against pathogenic fungi, and 31 endophytic fungi...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Grasses; Molecular identification; Plant pathogens; RDNA.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100303
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Glyphosate tolerant volunteer corn control at two development stages Planta Daninha
Costa,N.V.; Zobiole,L.H.S.; Scariot,C.A.; Pereira,G.R.; Moratelli,G..
The loss of grains during the harvest of glyphosate tolerant corn may generate volunteer plants, which can interfere in the conventional or glyphosate crop in succession. The current work aim to evaluate the control of the volunteer corn glyphosate tolerant under two weed stages. Aimed to evaluate the control of volunteer glyphosate tolerant corn in two stages of development. There were conducted two experiments with hybrid 2B688 HR (lepidoptera and glyphosate tolerant), the application were at V5 and V8 stage. The experiment was randomized block design with four replicates, using the treatments: haloxyfop at 25, 50 and 62 g ha-1 alone and associated with 2,4-D at 670 g ha-1 or fluroxypyr at 200 g ha-1. The standard was clethodim at 84 g ha-1 with 2,4-D...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enetically modified; In tank mixture; ACCase inhibitors; Auxin inhibitors; Antagonism; Rampant weed.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000400002
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Herbicide Mixtures to Control Dayflowers and Drift Effect on Coffee Cultures Planta Daninha
FREITAS,N.M.; FREITAS,F.C.L.; FURTADO,I.F.; TEIXEIRA,M.F.F.; SILVA,V.F..
ABSTRACT: The dayflower species Commelina benghalensis and C. diffusa are among the main weeds in coffee crops. The purpose of this study was to evaluate the efficacy of herbicides/herbicide mixtures in controlling dayflower species and to evaluate the possible intoxication of coffee cultures, as well as the effect of mixture interactions. Two experiments were conducted, the first one in a 12 x 2 factorial arrangement with 12 herbicides/mixtures (glyphosate, glyphosate + metsulfuron-methyl, glyphosate + flumioxazin, glyphosate + 2.4-D, glyphosate + oxyfluorfen, glyphosate + carfentrazone-ethyl, metsulfuron-methyl, flumioxazin, 2.4-D, oxyfluorfen and carfentrazone-ethyl) and two dayflower species (C. benghalensis and C. diffusa) and the second one, in a 6 x...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Coffea arabica; Commelina benghalensis; Commelina diffusa; Synergism.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100248
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Identification and in vitro production of Lactobacillus antagonists from women with or without bacterial vaginosis BJMBR
Branco,K.M.G.R.; Nardi,R.M.D.; Moreira,J.L.S.; Nunes,A.C.; Farias,L.M.; Nicoli,J.R.; Carvalho,M.A.R..
Lactobacilli isolated from the vaginal tract of women with and without bacterial vaginosis (BV) were identified and characterized for the production of antagonists. Bacterial samples were isolated from healthy women (N = 16), from patients with clinical complaints but without BV (N = 30), and from patients with BV (N = 32). Identification was performed using amplified ribosomal DNA restriction analysis. Production of antagonistic compounds was evaluated by the double-layer diffusion technique using Gram-positive (N = 9) and Gram-negative bacteria (N = 6) as well as yeast (N = 5) as indicator strains. Of a total of 147 isolates, 133 were identified as pertaining to the genus Lactobacillus. Lactobacillus crispatus was the species most frequently recovered,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactobacillus; Bacterial vaginosis; Antagonism; Hydrogen peroxide; Identification.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000400003
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In vitro assessment of the probiotic potential of lactobacilli isolated from Minas artisanal cheese produced in the Araxá region, Minas Gerais state, Brazil Arq. Bras. Med. Vet. Zootec.
Silva,J.G.; Castro,R.D.; Sant’Anna,F.M.; Barquete,R.M.; Oliveira,L.G.; Acurcio,L.B.; Luiz,L.M.P.; Sales,G.A.; Nicoli,J.R.; Souza,M.R..
ABSTRACT Minas artisanal cheese is made from endogenous starter cultures, including lactic acid bacteria (LAB). Some LAB may possess probiotic potential. Thus, this study aimed to evaluate the in vitro probiotic properties of lactobacilli isolated from Minas artisanal cheeses produced in Minas Gerais. Ten samples of lactobacilli, formerly isolated from those cheeses, were submitted to the following assays: antimicrobial susceptibility, tolerance to artificial gastric juice and biliary salts, production of hydrogen peroxide and antagonism against pathogenic and non-pathogenic micro-organisms. Only L. plantarum (C0) was sensitive to all tested antimicrobials, while the other LAB samples were resistant to at least one drug. Six samples were tolerant to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Artisanal cheeses; Beneficial micro-organisms; Antibiogram; Tolerance to gastric juice and biliary salts; Antagonism.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200647
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Influence of raw meat natural background flora on growth of Escherichia coli O157: H7 in ground beef Rev. Microbiol.
Saad,Susana M.I.; Franco,Bernadette D.G.M..
Escherichia coli O157:H7 is a foodborne pathogen of increasing importance. It has been involved in several threatening outbreaks, most of them associated with meat products. In this study, the influence of some bacteria from the natural background flora of raw meat over E.coli O157:H7 in ground beef stored under refrigeration and at room temperature was evaluated. Different levels of E.coli O157:H7 (101-102, 103-104 and 106-107 CFU/g), inoculated in ground beef samples, were challenged with strains of non-pathogenic E.coli, Pseudomonas putida or Leuconostoc sp. Growth of the pathogen was monitored using standard cultural methods and an ELISA-type rapid method. Non-pathogenic E.coli, Pseudomonas putida and Leuconostoc sp. did not affect growth of E.coli...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Escherichia coli O157:H7; Antagonism; Ground beef.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000300015
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Inoculación de bacterias promotoras de crecimiento vegetal en pepino (Cucumis sativus L.). Colegio de Postgraduados
Pérez Rosales, Elvia.
Las rizobacterias promotoras de crecimiento vegetal (RPCV) estimulan el crecimiento y rendimiento de algunos cultivos a través de mecanismos como: síntesis de fitohormonas, fijación de nitrógeno, solubilización de fosfatos, producción de sideróforos y control de fitopatógenos. El objetivo central de este trabajo fue evaluar la respuesta de pepino (Cucumis sativus L.) a la inoculación con RPCV. Para cumplir con este objetivo se realizaron cinco experimentos. El primero consistió en determinar el efecto de la inoculación de cuatro cepas de rizobacterias: Pseudomonas tolassi (P61), P. tolassi (A46), Bacillus pumilus (R44) y Microbacterium paraoxydans (P21) en el crecimiento de plántulas de pepino. El tratamiento donde se coinocularon las cepas A46+R44 tuvo la...
Palavras-chave: Trasplante; Hortalizas; Calidad de fruto; Antagonismo; Análisis económico-financiero; Transplanting; Vegetables; Fruit quality; Antagonism; Economic and financial analysis; Maestría; Edafología.
Ano: 2012 URL: http://hdl.handle.net/10521/729
Registros recuperados: 38
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