|
|
|
|
|
| FREITAS-ASTÚA,JULIANA; PURCIFULL,DAN E.; POLSTON,JANE E.; HIEBERT,ERNEST. |
| Viruses of to the family Geminiviridae are considered some of the most important pathogens in tropical and subtropical regions of the world. Members of one Geminiviridae genus, Begomovirus, have been causing severe losses, particularly in tomato (Lycopersicon esculentum) production in the Americas and the Caribbean. Several new begomoviruses have been reported in the region and, at least one, Tomato yellow leaf curl virus (TYLCV), has been brought in from the Old World via infected transplants. In addition, the recombination events that are playing an important role in Begomovirus diversity have increased the complexity of their control. This scenario has led to the search for control measures that go beyond traditional host genetic resistance, chemical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Whitefly-transmitted geminivirus; Gene silencing; Plant transformation; Tomato begomovirus; Geminivirus control; Geminiviridae. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582002000500001 |
| |
|
|
| Yuki,Valdir A.; Lourenção,André L.; Kuniyuki,Hugo; Betti,Juarez A.. |
| Since 1991, when the whitefly Bemisia argentifolii Bellows & Perring was first described in São Paulo, it dispersed rapidly to all the regions of Brazil. Although the high incidence of geminivirus is correlated with high population of this whitefly, the transmission efficiency of this insect is unknown. To determine whether the B. argentifolii is a vector of BGMV, two experiments were carried out. After an aquisition period of 24 hours on infected beans plants cv. Carioca 80, adults of the whitefly were transferred to seedlings of some cultivars, giving a period of inoculation of 24 hours. In the 1st experiment, the percentage of symptomatic plants were: 25.0% for Carioca 80, 21.0% for Moruna 80, 21.0% for Aeté, 75.0% for Preto and 26.3% for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Aleyrodidae; Whitefly-transmitted geminivirus. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000400025 |
| |
|
|
|
