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Endophytic bacterium isolated of hosts present in contaminated areas by mercury in Pantanal mato-grossense. Repositório Alice
MELLO, I. S.; PIETRO-SOUZA, W.; LIOTTI, R. G.; PEREIRA, J. M. C.; BICHARA, K. P. A.; SILVA, G. F.; ALMEIDA, E. G.; SOARES, M. A..
The mercury is a contaminant in gold mining in the city of Poconé. This heavy metal is a toxic in different organisms and affect the human by bioaccumulation process causing a serie of cronic diseases. Mercury can be easily absorbed by plants and be accumulated in the human body through the food chain. The hypothesis is microorganism that is in association with plants, that survive in contaminated areas with mercury, provide greater resistance to contaminant and possibly an increased frequency of colonization. In this way, the aim of this study was to isolate endophytic bacterium that exhibit resistance to mercury.
Tipo: Separatas Palavras-chave: Isolation; Tolerance; Contaminant.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027548
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Ocupação de manchas florestais no Pantanal por duas espécies de roedores: Clyomys laticeps e Thrichomys pachyurus. Repositório Alice
CAMILO, A. R.; TOMAS, W. M.; SOUZA, F. L. de; BOLZAN, A.; COELHO, A. G..
A fragmentação e a perda de habitat afetam de diferentes maneiras as comunidades biológicas. os efeitos variam muito de espécie para espécie, com algumas sendo extintas enquanto outras são beneficiadas. Tendo em vista o mosaico vegetacional que caracteriza a paisagem no Pantanal, o presente estudo relacionou o tamanho e o isolamento médio das manchas florestais à probabilidade de ocupação por duas espécies de roedores: Clyomys laticeps (Thomas, 1841) e Thrichomys pachyurus (Wagner, 1845).
Tipo: Separatas Palavras-chave: Fragmentação; Pequenos mamíferos; Probabilidade de ocupação; Fragmentation; Isolation; Occupancy.; Isolamento.; Small mammals..
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/869029
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Isolamento e caracterizacao de bacilos da Regiao Norte do Brasil e avaliacao da patogenicidade contra dipteros e lepidopteros. Repositório Alice
SILVA, S. F.; CAETANO, R. C. P. S.; TOSTES, A. N.; FARIAS, J. M; DIAS, J. M. C. S..
Tipo: Anais e Proceedings de eventos Palavras-chave: Caracterizacao; Brasil; Regiao Norte; Isolation; Characterization; North region; Bacillus.; Díptera; Bacilo; Isolamento.; Lepidoptera; Brazil..
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/171623
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Isolation of mutants of Trichoderma harzianum with enhanced b-glucosidase production with ability to inhibit and the plant pathogen Sclerotinia sclerotiorum. Repositório Alice
MELO, I. S. de; FAULL, J. L.; GRAEME-COOK, K.A.; FRIGHETTO, R. T. S.; SILVA, C. M. M. S..
Antagonism of Trichoderma spp. against other microrganisms in general operates by exolysis, breaking down the walls of fungal pathogens. Trichoderma species seem to be the best source of extracellular cellulase that can solubilize highly ordered cellulose. Cell walls of sclerotia of slerotiorum usually contain chitin and b-glucans. Such sclerotia may be vulnerable to attack by many microrganisms. The objective of this research was the isolation of improved strains for b-glucosidase production. The new biotypes obtained from a wild strain of T. harzianum were isolated via UV light in solid medium containing wheat-bran. Two mutants produced significant amounts of extra cellular cellulase activity with b-glucosidase activity. The percentage of reduction of...
Tipo: Parte de livro Palavras-chave: Isolation; Enhanced; B-glucosidase; Production; Pathogen.; Sclerotinia Sclerotiorum; Trichoderma Harzianum.; Mutants..
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/12605
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Isolation of Salmonella enterica subsp. enterica (O:4,5:i) and Salmonella enterica subsp. Typhimurium from free-living domestic pigeons (Columba livia) Arq. Bras. Med. Vet. Zootec.
Rocha-e-Silva,R.C.; Cardoso,W.M.; Teixeira,R.S.C.; Albuquerque,Á.H.; Horn,R.V.; Lopes,E.S.; Gomes Filho,V.J.R.; Almeida,C.P.; Santos,I.C.L.; Machado,D.N.; Lima,S.V.G.; Carneiro,I.S..
The present study reports the isolation of Salmonellaenterica in organs of free-living domestic pigeons. In the clinic examination, the presence of feces in the peri-cloacal and abdominal regions were observed, as well as symptoms such as cachexy, incoordination and opisthotonos. Before any therapeutic protocol was applied the bird died and a necropsy was then performed for the removal of spleen, liver, kidney and intestine for bacteriological examination and antibiotic sensitivity test. Salmonella enterica subsp.enterica (O:4,5:i-) and Salmonellaenterica subsp. enterica serovar Typhimurium were isolated from the liver and intestine and the sensitivity test demonstrated that these strains are sensitive to several antibiotics.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isolation; Necropsy; Bacteriological examination; Sensitivity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501435
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Mechanical isolation of capuchin monkey (Cebus apella) preantral ovarian follicles Arq. Bras. Med. Vet. Zootec.
Domingues,S.F.S.; Ferreira,H.S.; Muniz,J.A.P.C.; Lima,A.K.F.; Ohashi,O.M.; Figueiredo,J.R.; Silva,L.D.M..
The aim of this study was to adapt a mechanical procedure for the isolation of intact preantral follicles from Cebus apella ovaries. The interval effect of serial sections of the tissue chopper was tested on a number of preantral follicles isolated from ovaries (n=6) of three C. apella females, two prepubertal and one adult. Ovaries were divided into four equal parts and fragmented with a tissue chopper, adjusted for serial sections at intervals of 250, 500, 750 and 1,000µm, respectively. Isolated follicles were counted in a Neubauer's chamber and classified as primordial, primary or secondary. The number (mean±SE) of preantral follicles isolated from 1/4 ovary varied from 68,330+17,590 (at the 1,000µm cut interval) to 300,830+111,460 (at the 500µm cut...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Monkey; Preantral follicle; Isolation; Ovary; Cebus apella.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000300009
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Isolation and genetic stability of an infectious bronchitis virus strain (IBV) Arq. Bras. Med. Vet. Zootec.
Pereira,C.G.; Saraiva,G.L.; Santos,M.R.; Assao,V.S.; Fietto,J.L.R.; Bressan,G.C.; Almeida,M.R.; Moreira,M.A.S.; Silva Júnior,A..
RESUMO O vírus da bronquite infecciosa (IBV) é um importante patógeno respiratório presente na avicultura comercial e tem provocado grandes perdas econômicas em todo o mundo. A vacinação é realizada pela indústria produtora de aves, mas continuam surgindo novos sorotipos e variações antigênicas, dificultando o controle de IBV. Nós realizamos uma caracterização molecular de uma cepa de IBV obtida diretamente de tecidos e comparamos com a mesma cepa que havia sido passada três vezes em ovo embrionado. Nós mostramos uma variação significante na sequência viral depois de ter sido isolada em ovo embrionado.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Infectious bronchitis virus; Isolation; Characterization; Stability.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401333
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Isolation and biological characterization of a basic phospholipase A2 from Bothrops jararacussu snake venom Biocell
Maruñak,S.L.; Leiva,L; Garcia Denegri,M.E.; Teibler,P; Acosta De Pérez,O.
A phospholipase A2 has been isolated from Bothrops jararacussu venom from snakes that inhabit the northeast region of Argentina. The present study describes in vivo and in vitro biological activities of phospholipase A2 from B. jararacussu as well as isolation details of its. Venom was obtained by milking of adult snakes which were housing in wood reptile cages of varying dimensions in heated (20-30ºC) rooms. Snakes received a weekly diet of mice and water was available ad libitum for drinking and soaking. The enzyme was purified by gel filtration on a Sephadex G-75 column followed by ion exchange chromatography on a SP-Sephadex C25 column. The major peak belonging to proteins was retained in the cation exchanger and then eluted using a concentration...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Snake venom; Bothrops jararacussu; Phospholipase A2; Isolation.
Ano: 2007 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452007000300001
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Optimization of fermentation conditions for cellulases production by Bacillus licheniformis MVS1 and Bacillus sp. MVS3 isolated from Indian hot spring BABT
Acharya,Somen; Chaudhary,Anita.
The aim of this work was to study the effect of some nutritional and environmental factors on the production of cellulases, in particular endoglucanase (CMCase) and exoglucanases (FPase) from Bacillus licheniformis MVS1 and Bacillus sp. MVS3 isolated from an Indian hot spring. The characterization study indicated that the optimum pH and temperature value was 6.5 to 7.0 and 50-55°C, respectively. Maximum cellulases production by both the isolates was detected after 60 h incubation period using wheat and rice straw. The combination of inorganic and organic nitrogen source was suitable for cellulases production. Overall, FPase production was much higher than CMCase production by both of the strains. Between the two thermophiles, the cellulolytic activity was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isolation; Thermophiles; Submerged fermentation; Parameter optimization; Cellulases; Hot spring.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400003
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Isolation, Culturing, Characterization and Aging of Adipose Tissue-derived Mesenchymal Stem Cells: A Brief Overview BABT
Fathi,Ezzatollah; Farahzadi,Raheleh.
ABSTRACT The aim of this review was to describe the current state-of-the-art regarding isolation, characterization and aging of adipose tissue-derived mesenchymal stem cells (ADSCs). Mesenchymal stem cells (MSCs) have recently received widespread attention because of their potential use in tissue-engineering applications. Various studies have indicated that MSCs with a fibroblast-like morphology migrate to the sites of injury and help to regenerate damaged tissue. Over the past few years, it has been recognized that fat is not only an energy supply, but also a rich source of multipotent stem cells that can be easily harvested, isolated and selected as compared with other tissues. ADSCs are particularly interesting because of their rapid proliferation and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adipose tissue-derived mesenchymal stem cells; Adipose tissue; Isolation; Aging; Differentiation potential.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100302
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Primary cultures of mouse small intestinal epithelial cells using the dissociating enzyme type I collagenase and hyaluronidase BJMBR
Ren,H.J.; Zhang,C.L.; Liu,R.D.; Li,N.; Li,X.G.; Xue,H.K.; Guo,Y.; Wang,Z.Q.; Cui,J.; Ming,L..
The epithelium is a highly dynamic system, which plays a crucial role in the homeostasis of the intestinal tract. However, studies on the physiological and pathophysiological functions of intestinal epithelial cells (IECs) have been hampered due to lack of normal epithelial cell models. In the present study, we established a reproducible method for primary culture of mouse IECs, which were isolated from the viable small intestinal crypts of murine fetuses (on embryonic day 19), using type I collagenase and hyaluronidase in a short span of time (≤20 min). With this method, continuously growing mouse IECs, which can be subcultured over a number of passages, were obtained. The obtained cell lines formed a tight cobblestone-like arrangement, displayed long and...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Intestinal epithelial cells; Crypt; Isolation; Primary culture; Collagenase I; Hyaluronidase.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000500604
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Social condition affects hormone secretion and exploratory behavior in rats BJMBR
Genaro,G.; Schmidek,W.R.; Franci,C.R..
Studies of behavior, endocrinology and physiology have described experiments in which animals housed in groups or in isolation were normally tested individually. The isolation of the animal from its group for testing is perhaps the most common situation used today in experimental procedures, i.e., there is no consideration of the acute stress which occurs when the animal is submitted to a situation different from that it is normally accustomed to, i.e., group living. In the present study, we used 90 male 120-day-old rats (Rattus norvegicus) divided into 5 groups of 18 animals, which were housed 3 per cage, in a total of 6 cages. The animals were tested individually or with their groups for exploratory behavior. Hormones were determined by radioimmunoassay...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isolation; Group; Stress; Reproduction; ACTH; Luteinizing hormone; Corticosterone; Prolactin.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000600008
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Isolation, properties and kinetics of growth of a thermophilic Bacillus BJM
Souza,Adriane Nunes de; Martins,Meire Lelis Leal.
A strictly aerobic, thermophilic, spore-forming bacteria was isolated from a soil sample collected in Campos dos Goytacazes City, Rio de Janeiro, Brazil. The cells of this organism were Gram-positive, catalase positive, actively motile, 1.2 µm wide and 5.3 µm long. Growth occurred at pH values ranging from 6.5 to 9.0, and optimum growth occurred at about pH 7.0. The optimum temperature for growth was around 55ºC, and the upper temperature limit for growth was around 70ºC. Yeast extract stimulated growth on glucose and was obligately required at supraoptimal temperatures (65ºC). The results of 16S rRNA sequence comparisons indicated that the isolate was closely related to Bacillus caldoxylolyticus and Bacillus sp strain AK1, and these three organisms...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermophilic microorganism; Bacillus; Isolation.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000400003
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Antimicrobial resistance and virulence gene profiles in P. multocida strains isolated from cats BJM
Ferreira,Thais Sebastiana Porfida; Felizardo,Maria Roberta; Gobbi,Debora Dirani Sena de; Moreno,Marina; Moreno,Andrea Micke.
Cats are often described as carriers of Pasteurella multocida in their oral microbiota. This agent is thought to cause pneumonia, conjunctivitis, rhinitis, gingivostomatitis, abscess and osteonecrosis in cats. Human infection with P. multocida has been described in several cases affecting cat owners or after cat bites. In Brazil, the cat population is approximately 21 million animals and is increasing, but there are no studies of the presence of P. multocida in the feline population or of human cases of infection associated with cats. In this study, one hundred and ninety-one healthy cats from owners and shelters in São Paulo State, Brazil, were evaluated for the presence of P. multocida in their oral cavities. Twenty animals were positive for P....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cat; Pasteurela multocida; Virulence genes; Resistance; Isolation.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100271
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Isolation of rabies virus from the parotid salivary glands of foxes (Pseudalopex vetulus) from Paraíba State, Northeastern Brazil BJM
Silva,Maria Luana Cristiny Rodrigues; Lima,Fabiano da Silva; Gomes,Albério Antônio de Barros; Azevedo,Sérgio Santos de; Alves,Clebert José; Bernardi,Fernanda; Ito,Fumio Honma.
To determine the presence of rabies virus in the parotid salivary glands, 12 road-killed rabies-positive hoary foxes (Pseudoalopex vetulus) were tested by using the fluorescent antibody test (FAT) and mouse inoculation test (MIT). All 12 parotid salivary glands were positive for both tests, although in some cases several passages were required. The findings of this study support the importance of the hoary fox as rabies reservoir in the semi-arid region of Paraíba State, Northeastern Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Parotid gland; Fox; Rabies virus; Isolation; Paraíba State.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300004
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Curtobacterium flaccumfaciens pv. flaccumfaciens detection in bean seeds using a semi-selective culture medium BJM
Maringoni,Antonio Carlos; Camara,Renata de Cassia.
The bacterial wilt caused by Curtobacterium flaccumfaciens pv. flaccumfaciens is currently considered one of the most important bacterial bean disease in Brazil. One of the most effective control methods against this disease is the use of healthy seeds. However, no methods are known that could be routinely used to detect this bacterium in bean seeds under Brazilian condition. The aim of this work was to evaluate qualitative and quantitative detection methods for Curtobacterium flaccumfaciens pv. flaccumfaciens in naturally-infected bean seeds, and the detection of this pathogen in thirty bean seed samples, by sowing onto a semi-selective culture medium the leachate obtained from soaked bean seeds. Both the qualitative and quantitative methods were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterial wilt; Isolation; Seed pathology; Phaeolus vulgaris.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400009
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Arcobacter butzleri: first isolation report from chicken carcasses in costa rica BJM
Arias,Maria Laura; Cid,Adriana; Fernandéz,Heriberto.
Arcobacter butzleri isolation from chicken carcasses in Costa Rica is reported for the first time. The isolated strains (P and R) were presumptively identified by their phenotypic characteristics. Definitive identification was made using a multiplex PCR assay for the simultaneous detection and identification of Arcobacter butzleri, Arcobacter cryaerophilus and Arcobacter skirrowii. These first isolations indicate the necessity of further investigation about the prevalence, distribution, ecology and interactions with human beings of this and other Arcobacter species.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arcobacter butzleri; Chicken carcasses; Isolation; Epidemiology.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200035
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Isolation and characterization of canine parvovirus type 2c (CPV-2c) from symptomatic puppies BJM
Puentes,R; Eliopulos,N; Pérez,R; Franco,G; Sosa,K; Bianchi,P; Furtado,A; Hübner,S.O.; Esteves,P.A..
Canine parvovirus type 2 (CPV-2) is a leading cause of diarrhea in puppies in several parts of the world. In this study CPV-2 was detected and recovered from puppies showing clinical disease from Montevideo, Uruguay. Samples were processed and used to infect CRFK and MDCK cells in order to isolate the virus. Out of twelve, two samples were positive for CPV-2. A genomic region of 583 bp was amplified and the molecular characterization was performed by sequencing, phylogenetic analysis and Restriction Fragment Length Polymorphism (RFLP). Two isolated viruses (UY1 and UY2) were CPV-2c-like viruses. The comparison between the cytophatic effect (CPE) of CPV-2 (vaccinal virus) and CPV-2c (isolated virus) on primary canine cells cultures and on CRFK line cells,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine Parvovirus 2c; Isolation; Molecular characterization; South America.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300022
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Isolation of bovine coronavirus (BCoV) in monolayers of HmLu-1 cells BJM
Jerez,José Antonio; Gregori,Fábio; Brandão,Paulo Eduardo; Rodriguez,Cesar Alejandro Rosales; Ito,Fumio Honma; Buzinaro,Maria da Glória; Sakai,Takeo.
Isolation of BCoV was performed in monolayers of HmLu-1 cells, using 20 fecal samples from clinical cases of diarrhea in calves. Samples were positive for BCoV by means of hemagglutination / hemagglutination inhibition (HA/HI). Up to the fifth serial passage, 13 of these isolates presented syncytial cytopathic effect, similar to Kakegawa standard strain. When isolates were submitted to seroneutralization with gammaglobulin anti-bovine coronavirus, 8 of them were considered to be positive, once cytopathic effect was neutralized. After titration and seroneutralization in microplates, only three of them were confirmed as positive. The lineage HmLu-1 showed higher permissivity to BCoV isolation, but the low intensity of viral replication demonstrated that new...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bovine coronavirus (BCoV); Isolation; HmLu-1 cells.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000300001
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Detection of Brucella ovis in ovine from Paraíba State, in the Northeast region of Brazil BJM
Alves,Clebert José; Figueiredo,Salomão Moreira de; Azevedo,Sérgio Santos de; Clementino,Inácio José; Keid,Lara Borges; Vasconcellos,Sílvio Arruda; Batista,Carolina de Sousa Américo; Rocha,Vivianne Cambuí Mesquita; Higino,Severino Silvano.
To determine the presence of Brucella ovis in ovine from Paraíba State, in the Northeast region of Brazil, 80 animals slaughtered in the public slaughterhouse of Patos city were used. Before slaughter, blood samples were collected by jugular venopuncture from each animal, and after slaughter, testicles, epidydimus and uterus were aseptically collected. For the serological diagnosis of B. ovis and B. abortus infections, the agar gel immunodiffusion (AGID) and Rose Bengal (RBT) tests were carried out, respectively. In addition, microbiological culture and polymerase chain reaction (PCR) were performed on testicle, epidydimus and uterus samples. Six animals (7.5%) tested positive for the presence of B. ovis antibodies and all animals tested negative for the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brucella ovis; Isolation; PCR; Ovine; Paraíba State.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200016
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