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| EIRAS, M.; TARGON, M. L. P. N.; FAJARDO, T. V. M.; FLORES, R.; KITAJIMA, E. W.. |
| Viroids, non-protein-coding small (246-40 I nt) eircular single-stranded RNAs with autonornous replication, are currently classified into two farnilics. Within the farnily Pospiviroidae, Citrus exocortis viroid (CEVd) belongs to lhe genus Pospiviroid while Hop stunt viroid (HSVd) is the single rnembcr of the genus Hostuviroid. These pathogens are distributcd worldwide and infect a large nurnbcr of hosts. In Brazil, isolates of CEVd and HSVd have been detected in both citrus and grapevine. To characterize and study the genetic variability of thcse viroids, total RNA frorn leaves of grapevine Vitis vinifera 'Cabemet Sauvignon' and V Iabrusca 'Niagara Rosada' frorn Bento Gonçalves, RS, was used as a tcmplate for RTPCR amplification with specific primers for... |
| Tipo: Artigo de periódico |
Palavras-chave: CEVd; HSVd; Doença de Planta; Uva; Vírus; Viticultura; Hostuviroid; Pospiviroid; Pospiviroidae. |
| Ano: 2006 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/541733 |
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| Eiras,Marcelo; Targon,Maria Luisa P.N.; Fajardo,Thor V.M.; Flores,Ricardo; Kitajima,Elliot W.. |
| Viroids, non-protein-coding small (246-401 nt) circular single-stranded RNAs with autonomous replication, are currently classified into two families. Within the family Pospiviroidae, Citrus exocortis viroid (CEVd) belongs to the genus Pospiviroid while Hop stunt viroid (HSVd) is the single member of the genus Hostuviroid. These pathogens are distributed worldwide and infect a large number of hosts. In Brazil, isolates of CEVd and HSVd have been detected in both citrus and grapevine. To characterize and study the genetic variability of these viroids, total RNA from leaves of grapevine Vitis vinifera 'Cabernet Sauvignon' and V. labrusca 'Niagara Rosada' from Bento Gonçalves, RS, was used as a template for RT-PCR amplification with specific primers for the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CEVd; HSVd; Pospiviroid; Hostuviroid; Pospiviroidae. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582006000500002 |
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| Camps,Rocío; Castro,Mónica; Besoain,Ximena. |
| R. Camps, M. Castro, and X. Besoain. 2014. Simultaneous detection of CTV, CEVd and HSVd using Arizona 861 S1 Citron and RT-PCR. Cien. Inv. Agr. 41(2): 255-261. Citrus tristeza virus (CTV), Citrus exocortis viroid (CEVd) and Hop stunt viroid (HSVd) are pathogens that affect citrus trees in Chile. The simultaneous use of a rapid diagnostic method with the effective cleaning of infected budwood is a powerful preventative method for controlling viral diseases. The objective of this study was the multiple detection of CTV, CEVd, and HSVd, through bio-amplification in Arizona 861-S1 citron plants, combined with two incubation temperatures and multiple RT-PCR in two steps. Citron indicator plants were inoculated with the three pathogens, both individually and... |
| Tipo: Journal article |
Palavras-chave: CEVd; Citrus; CTV; Diagnostic methods; HSVd; Rapid detection. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202014000200012 |
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| MURCIA, N.; BANI HASHEMIAN, S. M.; BEDERSKI, K.; WULFF, N. A.; BARBOSA, C. de J.; BOVÉ, J. M.; DURAN-VILA, N.. |
| The so-called "quebra-galho" clone of Tahiti lime is very popular in Brazil, because the small size of the trees is suitable for high-density plantings. These Tahiti lime trees are easily recognized because they show bark-cracking symptoms, that have been claimed to be associated with "exocortis" infection. Viroid infection of three "quebra-galho" Tahiti lime trees from a farm near Araraquara in the state of São Paulo, Brazil, was assessed by Northern-blot hybridization using viroid-specific probes. Similarly, eight clones of Tahiti lime from different origins and available at Topara Nursery, near Chincha, Peru, were also tested for viroids. The four clones that displayed characteristic bark-cracking symptoms were found to be infected with Citrus exocortis... |
| Tipo: Separatas |
Palavras-chave: Citrus viroids; CEVd; Quebra-galho; Wood pocket. |
| Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/879642 |
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