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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Semiárido. |
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Data corrente: |
23/10/2012 |
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Data da última atualização: |
01/11/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CARNEIRO, R. M. D. G.; CASTRO, J. M. da C. e; CARNEIRO, R. G.; FREITAS, V. M. de; MATTOS, J. K.; GOMES, C. B. |
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Afiliação: |
REGINA MARIA DECHECHI G CARNEIRO, CENARGEN; JOSE MAURO DA CUNHA E CASTRO, CPATSA; IAPAR; UnB; UnB; CESAR BAUER GOMES, CPACT. |
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Título: |
Major guava nematodes and control prospects using resistance on Psidium spp. and non-host crops. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Acta Horticulturae, Leuven, n. 959, p. 41-49, sept. 2012. |
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Idioma: |
Inglês |
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Notas: |
Edição do Proceedings of the III International Symposium on Guava and other Myrtaceae, Petrolina, sept. 2012. |
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Conteúdo: |
The worst nematode problem affecting guava is that created by root-knot nematode, which is a recognized limiting factor in commercial guava production in Central and South America. Considering the difficulty of identifying Meloidogyne enterolobii (=M. mayaguensis) only by the perineal pattern, this species has been misidentified in different regions around the world and identified frequently as M. incognita or Meloidogyne spp. The species’ identification is possible using esterase phenotype and molecular markers. Using these techniques, only M. enterolobii was detected on guava in Brazil, confirming the incorrect identification. The intraspecific genetic variability of 16 M. enterolobii isolates from different geographical regions and hosts were analysed with different neutral molecular markers (RAPD, ISSR and AFLP) and showed a high level of homogeneity among the populations. Considering the low variability among M. enterolobii isolates, genetic resistance could be considered the most effective method of control, but only one accession of P. friedrichstalianium (Costa Rican wild guava) was resistant and compatible as rootstock with P. guajava ‘Paluma’, in field conditions. Although this root-knot nematode displays a very wide host range, studies showed that crop rotation is possible for cleaning areas infested with the nematode, using 35 antagonistic plants. Some cultivars of corn are also very promising for use in reducing populations of M. enterolobii in infested fields. Fourteen fruit trees are non-host to M. enterolobii and only four fruit trees are good hosts. Considering the impossibility of cultivating guava in fields infested by M. enterolobii, crops presented as non-hosts or poor hosts could be used by the growers, but more studies should be done in the field, in infested areas, to support the results obtained in greenhouse conditions. MenosThe worst nematode problem affecting guava is that created by root-knot nematode, which is a recognized limiting factor in commercial guava production in Central and South America. Considering the difficulty of identifying Meloidogyne enterolobii (=M. mayaguensis) only by the perineal pattern, this species has been misidentified in different regions around the world and identified frequently as M. incognita or Meloidogyne spp. The species’ identification is possible using esterase phenotype and molecular markers. Using these techniques, only M. enterolobii was detected on guava in Brazil, confirming the incorrect identification. The intraspecific genetic variability of 16 M. enterolobii isolates from different geographical regions and hosts were analysed with different neutral molecular markers (RAPD, ISSR and AFLP) and showed a high level of homogeneity among the populations. Considering the low variability among M. enterolobii isolates, genetic resistance could be considered the most effective method of control, but only one accession of P. friedrichstalianium (Costa Rican wild guava) was resistant and compatible as rootstock with P. guajava ‘Paluma’, in field conditions. Although this root-knot nematode displays a very wide host range, studies showed that crop rotation is possible for cleaning areas infested with the nematode, using 35 antagonistic plants. Some cultivars of corn are also very promising for use in reducing populations of M. enterolobii in infested fields. ... Mostrar Tudo |
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Palavras-Chave: |
Controle; Guava; Marcadores enzimáticos; Marcadores moleculares; Meloidogyne enterolobii; Nematóide de galhas; Psidium spp. |
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Thesagro: |
Doença; Goiaba; Resistência. |
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Thesaurus Nal: |
Guavas; Plant parasitic nematodes; Psidium. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02963nam a2200337 a 4500
001 1946986
005 2024-11-01
008 2012 bl uuuu u00u1 u #d
100 1 $aCARNEIRO, R. M. D. G.
245 $aMajor guava nematodes and control prospects using resistance on Psidium spp. and non-host crops.$h[electronic resource]
260 $aActa Horticulturae, Leuven, n. 959, p. 41-49, sept. 2012.$c2012
500 $aEdição do Proceedings of the III International Symposium on Guava and other Myrtaceae, Petrolina, sept. 2012.
520 $aThe worst nematode problem affecting guava is that created by root-knot nematode, which is a recognized limiting factor in commercial guava production in Central and South America. Considering the difficulty of identifying Meloidogyne enterolobii (=M. mayaguensis) only by the perineal pattern, this species has been misidentified in different regions around the world and identified frequently as M. incognita or Meloidogyne spp. The species’ identification is possible using esterase phenotype and molecular markers. Using these techniques, only M. enterolobii was detected on guava in Brazil, confirming the incorrect identification. The intraspecific genetic variability of 16 M. enterolobii isolates from different geographical regions and hosts were analysed with different neutral molecular markers (RAPD, ISSR and AFLP) and showed a high level of homogeneity among the populations. Considering the low variability among M. enterolobii isolates, genetic resistance could be considered the most effective method of control, but only one accession of P. friedrichstalianium (Costa Rican wild guava) was resistant and compatible as rootstock with P. guajava ‘Paluma’, in field conditions. Although this root-knot nematode displays a very wide host range, studies showed that crop rotation is possible for cleaning areas infested with the nematode, using 35 antagonistic plants. Some cultivars of corn are also very promising for use in reducing populations of M. enterolobii in infested fields. Fourteen fruit trees are non-host to M. enterolobii and only four fruit trees are good hosts. Considering the impossibility of cultivating guava in fields infested by M. enterolobii, crops presented as non-hosts or poor hosts could be used by the growers, but more studies should be done in the field, in infested areas, to support the results obtained in greenhouse conditions.
650 $aGuavas
650 $aPlant parasitic nematodes
650 $aPsidium
650 $aDoença
650 $aGoiaba
650 $aResistência
653 $aControle
653 $aGuava
653 $aMarcadores enzimáticos
653 $aMarcadores moleculares
653 $aMeloidogyne enterolobii
653 $aNematóide de galhas
653 $aPsidium spp
700 1 $aCASTRO, J. M. da C. e
700 1 $aCARNEIRO, R. G.
700 1 $aFREITAS, V. M. de
700 1 $aMATTOS, J. K.
700 1 $aGOMES, C. B.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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| 1. |  | TULMANN NETO, G.; MENTEN, J. O. M.; ANDO, A.; POMPEU JUNIOR, J.; FIGUEIREDO, J. O.; CERAVOLO, L.; NAMEKATA, T.; ROSSI, A. C. Indução e seleção de mutantes em laranja 'pêra' mediante o emprego de radiação gama. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 31, n. 10, p. 743-752, out. 1996. Título em inglês: Mutant selection and induction in 'pêra' sweet orange using gamma-rays.| Biblioteca(s): Embrapa Unidades Centrais. |
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