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| Registros recuperados: 404 | |
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| Delamuta,Jakeline Renata Marçon; Ribeiro,Renan Augusto; Menna,Pâmela; Bangel,Eliane Villamil; Hungria,Mariangela. |
| Symbiotic association of several genera of bacteria collectively called as rhizobia and plants belonging to the family Leguminosae (=Fabaceae) results in the process of biological nitrogen fixation, playing a key role in global N cycling, and also bringing relevant contributions to the agriculture. Bradyrhizobium is considered as the ancestral of all nitrogen-fixing rhizobial species, probably originated in the tropics. The genus encompasses a variety of diverse bacteria, but the diversity captured in the analysis of the 16S rRNA is often low. In this study, we analyzed twelve Bradyrhizobium strains selected from previous studies performed by our group for showing high genetic diversity in relation to the described species. In addition to the 16S rRNA,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological nitrogen fixation; Bradyrhizobium; Multilocus sequence analysis; Phylogeny; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200035 |
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| Souza,Carine Kunzler; Streck,André Felipe; Gonçalves,Karla Ratje; Pinto,Luciane Dubina; Ravazzolo,Ana Paula; Barcellos,David Emílio dos Santos Neves de; Canal,Cláudio Wageck. |
| Abstract Ungulate tetraparvovirus 2 (UTV2) , formerly known as porcine hokovirus due to its discovery in Hong Kong, is closely related to a Primate tetraparvovirus (human PARV-4) and Ungulate tetraparvovirus 1 (bovine hokovirus). Until now, UTV2 was detected in European, Asian and North American countries, but its occurrence in Latin America is still unknown. This study describes the first report of UTV2 in Brazil, as well as its phylogenetic characterization. Tissue samples (lymph node, lung, liver, spleen and kidney) of 240 piglets from eight different herds (30 animals each herd) were processed for DNA extraction. UTV2 DNA was detected by PCR and the entire VP1/VP2 gene was sequenced for phylogenetic analysis. All pigs from this study displayed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Porcine; Tetraparvovirus; Phylogeny; Hokovirus; Detection; Ungulate. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200513 |
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| Ramya,Shanivarsanthe Leelesh; Venkatesan,Thiruvengadam; Srinivasa Murthy,Kottilingam; Jalali,Sushil Kumar; Verghese,Abraham. |
| Abstract Diamondback moth (DBM), Plutella xylostella (Linnaeus), is a notorious pest of brassica crops worldwide and is resistant to all groups of insecticides. The insect system harbors diverse groups of microbiota, which in turn helps in enzymatic degradation of xenobiotic-like insecticides. The present study aimed to determine the diversity of gut microflora in DBM, quantify esterase activity and elucidate their possible role in degradation of indoxacarb. We screened 11 geographic populations of DBM in India and analyzed them for bacterial diversity. The culturable gut bacterial flora underwent molecular characterization with 16S rRNA. We obtained 25 bacterial isolates from larvae (n = 13) and adults (n = 12) of DBM. In larval gut isolates,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plutella xylostella; Bacteria; 16S rRNA; Phylogeny; Carboxylesterase; Indoxacarb. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200327 |
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| Registros recuperados: 404 | |
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