Nuclear Ribosomal Dna
Mostrando 1-12 de 214 artigos, teses e dissertações.
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1. Isolation, identification and characterization of endophytic fungi of Bambusa oldhamii munro applied as antagonists to Pyricularia oryzae
ABSTRACT Endophytic fungi, in addition to improving plant development, may produce antimicrobial substances that can inhibit pathogens. The objective of this study was to isolate and characterize endophytic fungi of Bambusa oldhamii and evaluate in vitro antagonism to Pyricularia oryzae. Fungal isolates of B. oldhamii shoots were purified and identified by n
Rev. Ceres. Publicado em: 2020-08
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2. Phylogenomic and single nucleotide polymorphism analyses revealed the hybrid origin of Spondias bahiensis (family Anacardiaceae): de novo genome sequencing and comparative genomics
Abstract The genus Spondias (family Anacardiaceae) comprises 19 taxa, ten of which occur in Neotropical regions. Spondias bahiensis has been suggested to be a hybrid, although initial evidence does not support this hypothesis. The aim of this study was to test the hypothesis of the hybrid origin of S. bahiensis using high-throughput sequencing with single nu
Genet. Mol. Biol.. Publicado em: 29/11/2018
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3. Rapid detection of Candida species in bronchoalveolar lavage fluid from patients with pulmonary symptoms
Abstract Candida species, especially C. albicans, are commensals on human mucosal surfaces, but are increasingly becoming one of the important invasive pathogens as seen by a rise in its prevalence in immunocompromised patients and in antibiotic consumption. Thus, an accurate identification of Candida species in patients with pulmonary symptoms can provide i
Braz. J. Microbiol.. Publicado em: 2016-03
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4. A nuclear ribosomal DNA pseudogene in triatomines opens a new research field of fundamental and applied implications in Chagas disease
A pseudogene, designated as "ps(5.8S+ITS-2)", paralogous to the 5.8S gene and internal transcribed spacer (ITS)-2 of the nuclear ribosomal DNA (rDNA), has been recently found in many triatomine species distributed throughout North America, Central America and northern South America. Among characteristics used as criteria for pseudogene verification, secondar
Mem. Inst. Oswaldo Cruz. Publicado em: 06/03/2015
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5. DNA barcoding in Atlantic Forest plants: what is the best marker for Sapotaceae species identification?
The Atlantic Forest is a phytogeographic domain with a high rate of endemism and large species diversity. The Sapotaceae is a botanical family for which species identification in the Atlantic Forest is difficult. An approach that facilitates species identification in the Sapotaceae is urgently needed because this family includes threatened species and valuab
Genet. Mol. Biol.. Publicado em: 03/11/2014
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6. Taxonomy and evolutionary relationships of Passiflora subg. Decaloba supersect. Decaloba sect. Xerogona (Passifloraceae): contributions of palynological, morphological and molecular studies
Passiflora subg. Decaloba supersect. Decaloba sect. Xerogona (Passifloraceae) is a tropical and subtropical group comprising 14 species that occur in tropical biomes throughout Latin America, including the Atlantic Forest. The section Xerogona comprises herbaceous vines characterized by a lack of petiole glands on their leaves, of bracts and of ocelli on the
Acta Bot. Bras.. Publicado em: 2014-09
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7. Characterizations of a new Cordyceps cicadae isolate and production of adenosine and cordycepin
Cordyceps is a fastidious pathogenic fungus infecting insects, and recent years have witnessed rapid progress in its medical properties. In this study, a wild isolate, C. cicadae MP12, was characterized through in vitro cultivation and its nuclear small-subunit (SSU) ribosomal DNA (rDNA) data. In vitro culture of C. cicadae MP12 was established by growing it
Brazilian Journal of Microbiology. Publicado em: 2012-06
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8. DNA multigene sequencing of topotypic specimens of the fascioliasis vector Lymnaea diaphana and phylogenetic analysis of the genus Pectinidens (Gastropoda)
Freshwater lymnaeid snails are crucial in defining transmission and epidemiology of fascioliasis. In South America, human endemic areas are related to high altitudes in Andean regions. The species Lymnaea diaphana has, however, been involved in low altitude areas of Chile, Argentina and Peru where human infection also occurs. Complete nuclear ribosomal DNA 1
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-02
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9. Nucleolus Organizer Regions chromatin architecture and its role in ribosomal genes expression / Arquitetura da cromatina na região organizadora do nucléolo e o seu papel no controle da expressão dos genes ribossomais
O nucléolo é uma organela nuclear responsável pela produção dos ribossomos, através das Regiões Organizadoras do Nucléolo (NORs). Espécies que possuem mais de um par de cromossomos contendo NORs terão, obrigatoriamente, pelo menos um par ativo, sendo as demais NORs funcionais de acordo com a demanda celular. O mecanismo de compensação de dose é
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2011
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10. Molecular phylogeny of the Myzorhynchella Section of Anopheles (Nyssorhynchus) (Diptera: Culicidae): genetic support for recently described and resurrected species
Phylogenetic relationships among species of the Myzorhynchella Section of Anopheles (Nyssorhynchus) were investigated using the nuclear ribosomal DNA second internal transcribed spacer (ITS2), the nuclear whitegene and mitochondrial cytochrome oxidase subunit I (COI) regions. The recently described Anopheles pristinus and resurrected Anopheles guarani were a
Mem. Inst. Oswaldo Cruz. Publicado em: 2011-09
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11. A new mtDNA COI gene lineage closely related to Anopheles janconnae of the Albitarsis complex in the Caribbean region of Colombia
An understanding of the taxonomic status and vector distribution of anophelines is crucial in controlling malaria. Previous phylogenetic analyses have supported the description of six species of the Neotropical malaria vector Anopheles (Nyssorhynchus) albitarsis s.l. (Diptera: Culicidae): An. albitarsis, Anopheles deaneorum, Anopheles marajoara, Anopheles or
Mem. Inst. Oswaldo Cruz. Publicado em: 2010-12
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12. Desenvolvimento de um método de PCR específico para detecção de Aspergillus Flavus aflatoxigênico em grãos brasileiros
In general, foods are extremely susceptible to contamination by mycotoxin-producing fungi that affect human and animal health, with major losses common in agricultural production in Brazil. Aflatoxins are considered the most important group of mycotoxins, because of their high toxicity, hepatic-cancer-inducing properties, and common occurrence in various gra
Publicado em: 2009