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| Ferraz,Hélvio Gledson Maciel; Resende,Renata Sousa; Moreira,Poliana Coutinho; Silveira,Patrícia Ricardino; Milagres,Elisângela Aparecida; Oliveira,José Rogério; Rodrigues,Fabrício Ávila. |
| AbstractTomato bacterial spot on tomato may be caused by four species of Xanthomonas and among them X. gardneri(Xg) is the most destructive one, especially in areas irrigated using a center pivot system in Minas Gerais state and the midwest region of Brazil. Due to the ineffectiveness of chemical control and the lack of cultivars with high levels of genetic resistance, this study investigated the potential of three antagonists (Streptomyces setonii (UFV618), Bacillus cereus (UFV592) and Serratia marcescens (UFV252)), and the hormone jasmonic acid (JA) as a positive control, to reduce bacterial spot symptoms and to potentiate defense enzymes in the leaves of tomato plants infected by Xg. Tomato seeds were microbiolized with each antagonist, and the soil was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xanthomonas gardneri; Solanum lycopersicum; Biological control; Host defense mechanisms; Induced resistance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400417 |
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| Ferraz,Hélvio Gledson Maciel; Resende,Renata Sousa; Silveira,Patrícia Ricardino; Andrade,Camila Cristina Lage; Milagres,Elisângela Aparecida; Oliveira,José Rogério; Rodrigues,Fabrício de Ávila. |
| Fusarium wilt, caused by Fusarium oxysporum f.sp. lycopersici (Fol), is one of the most important diseases that affect tomato yield worldwide. This study investigated the potential of three antagonists, Streptomyces setonii (UFV 618), Bacillus cereus (UFV 592) and Serratia marcescens (UFV 252), and as positive control the hormone jasmonic acid (JA), to reduce Fusarium wilt symptoms and to potentiate the defense enzymes in the stem tissues of tomato plants infected by Fol. The seeds were microbiolized with each antagonist, and the soil was also drenched with them. The plants were sprayed with JA 48 h before Fol inoculation. The area under the Fusarium wilt index progress curve was reduced by 54, 48, 47 and 45% for the UFV 618, JA, UFV 592 and UFV 252... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fusarium oxysporum f.sp. lycopersici; Solanum lycopersicum; Biological control; Host defense mechanisms; Induced resistance; Vascular pathogen. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000300008 |
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