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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
19/09/2024 |
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Data da última atualização: |
23/10/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GABRIEL, M.; SANTOS, M. F. A.; MATTOS, V. S.; GOMES, A. C. M. M.; ALMEIDA, S. F. de; CASTAGNONE-SERENO, P.; BOITEUX, L. S.; CARES, J. E.; CARNEIRO, R. M. D. G. |
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Afiliação: |
MÁRCIA GABRIEL, UNIVERSIDADE FEDERAL DE SANTA MARIA; MARCILENE F. A. SANTOS; VANESSA S. MATTOS; ANA CRISTINA MENESES M GOMES, CENARGEN; SHEILA F. DE ALMEIDA, UNIVERSIDADE DE BRASÍLIA; PHILIPPE CASTAGNONE-SERENO, UNIVERSITÉ CÔTE D’AZUR; LEONARDO SILVA BOITEUX, CNPH; JUVENIL E. CARES, UNIVERSIDADE DE BRASÍLIA; REGINA MARIA DECHECHI GOMES CARNEIRO, CENARGEN. |
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Título: |
Comparative histopathology of virulent and avirulent Meloidogyne javanica populations on susceptible and resistant tomato plants. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Frontiers in Plant Science, v. 15, 2024. |
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DOI: |
https://doi.org/10.3389/fpls.2024.1425336 |
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Idioma: |
Inglês |
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Conteúdo: |
The Mi-1.2 gene confers resistance to a wide range of Meloidogyne species, being the most important resistance factor employed in tomato breeding so far. However, many aspects related to the interaction of Mi-1.2-carrying tomato cultivars and virulent/avirulent Meloidogyne populations have not yet been clarified. Herein, comparative histopathological analyses were carried after inoculation of the homozygous (Mi-1.2/Mi-1.2) tomato rootstock ‘Guardião’ and the susceptible cultivar ‘Santa Clara’ (mi-1.2/mi-1.2) with virulent and avirulent populations of M. javanica. In the susceptible control, it was possible to visualize second stage juveniles (J2) of avirulent population and feeding sites from 2 to 30 days after infection (DAI) with females reaching maturity at 24-34 DAI. In the resistant rootstock, the Mi-1.2 gene-mediated resistance was related mainly to early defense responses (pre-infection and hypersensitive reaction), which led to an immunity-like phenotype that completely prevented the reproduction of the avirulent Meloidogyne population. On the other hand, J2s of the virulent M. javanica population were able to penetrate roots much more than the avirulent population, migrated and developed normally, showing intense and similar pattern of penetration from 4 to 34 DAI in the root tissues of both resistant and susceptible tomato genotypes. The total numbers of J2, J3, J4, and females counted in ‘Santa Clara’ for the virulent population of M. javanica were higher than in ‘Guardião’. MenosThe Mi-1.2 gene confers resistance to a wide range of Meloidogyne species, being the most important resistance factor employed in tomato breeding so far. However, many aspects related to the interaction of Mi-1.2-carrying tomato cultivars and virulent/avirulent Meloidogyne populations have not yet been clarified. Herein, comparative histopathological analyses were carried after inoculation of the homozygous (Mi-1.2/Mi-1.2) tomato rootstock ‘Guardião’ and the susceptible cultivar ‘Santa Clara’ (mi-1.2/mi-1.2) with virulent and avirulent populations of M. javanica. In the susceptible control, it was possible to visualize second stage juveniles (J2) of avirulent population and feeding sites from 2 to 30 days after infection (DAI) with females reaching maturity at 24-34 DAI. In the resistant rootstock, the Mi-1.2 gene-mediated resistance was related mainly to early defense responses (pre-infection and hypersensitive reaction), which led to an immunity-like phenotype that completely prevented the reproduction of the avirulent Meloidogyne population. On the other hand, J2s of the virulent M. javanica population were able to penetrate roots much more than the avirulent population, migrated and developed normally, showing intense and similar pattern of penetration from 4 to 34 DAI in the root tissues of both resistant and susceptible tomato genotypes. The total numbers of J2, J3, J4, and females counted in ‘Santa Clara’ for the virulent population of M. javanica were higher than in ... Mostrar Tudo |
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Palavras-Chave: |
Mi-1 2 gene; Root-knot nematode; S peruvianum. |
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Thesaurus Nal: |
Solanum lycopersicum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02402naa a2200277 a 4500
001 2167488
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008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3389/fpls.2024.1425336$2DOI
100 1 $aGABRIEL, M.
245 $aComparative histopathology of virulent and avirulent Meloidogyne javanica populations on susceptible and resistant tomato plants.$h[electronic resource]
260 $c2024
520 $aThe Mi-1.2 gene confers resistance to a wide range of Meloidogyne species, being the most important resistance factor employed in tomato breeding so far. However, many aspects related to the interaction of Mi-1.2-carrying tomato cultivars and virulent/avirulent Meloidogyne populations have not yet been clarified. Herein, comparative histopathological analyses were carried after inoculation of the homozygous (Mi-1.2/Mi-1.2) tomato rootstock ‘Guardião’ and the susceptible cultivar ‘Santa Clara’ (mi-1.2/mi-1.2) with virulent and avirulent populations of M. javanica. In the susceptible control, it was possible to visualize second stage juveniles (J2) of avirulent population and feeding sites from 2 to 30 days after infection (DAI) with females reaching maturity at 24-34 DAI. In the resistant rootstock, the Mi-1.2 gene-mediated resistance was related mainly to early defense responses (pre-infection and hypersensitive reaction), which led to an immunity-like phenotype that completely prevented the reproduction of the avirulent Meloidogyne population. On the other hand, J2s of the virulent M. javanica population were able to penetrate roots much more than the avirulent population, migrated and developed normally, showing intense and similar pattern of penetration from 4 to 34 DAI in the root tissues of both resistant and susceptible tomato genotypes. The total numbers of J2, J3, J4, and females counted in ‘Santa Clara’ for the virulent population of M. javanica were higher than in ‘Guardião’.
650 $aSolanum lycopersicum
653 $aMi-1 2 gene
653 $aRoot-knot nematode
653 $aS peruvianum
700 1 $aSANTOS, M. F. A.
700 1 $aMATTOS, V. S.
700 1 $aGOMES, A. C. M. M.
700 1 $aALMEIDA, S. F. de
700 1 $aCASTAGNONE-SERENO, P.
700 1 $aBOITEUX, L. S.
700 1 $aCARES, J. E.
700 1 $aCARNEIRO, R. M. D. G.
773 $tFrontiers in Plant Science$gv. 15, 2024.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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