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Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
16/07/2015 |
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Data da última atualização: |
29/04/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
CARVALHO, L. M. de; BENDA, N. D.; VAUGHAN, M. M.; CABRERA, A. R.; HUNG, K.; COX, T.; ABDO, Z.; ALLEN, L. H.; TEAL, P. E. A. |
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Afiliação: |
LUCIANA MARQUES DE CARVALHO, CPATC. |
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Título: |
Mi-1-mediated nematode resistance in tomatoes is broken by short-term heat stress but recovers over time. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Nematology, v. 47, n. 2, p. 133-140, June, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Tomato (Solanum lycopersicum L.) is among the most valuable agricultural products, but Meloidogyne spp. (root-knot nematode) infestations result in serious crop losses. In tomato, resistance to root-knot nematodes is controlled by the gene Mi-1, but heat stress interferes with Mi-1-associated resistance. Inconsistent results in published field and greenhouse experiments led us to test the effect of short-term midday heat stress on tomato susceptibility to Meloidogyne incognita race 1. Under controlled day/night temperatures of 258C/218C, ?Amelia?, which was verified as possessing the Mi-1 gene, was deemed resistant (4.1 ± 0.4 galls/plant) and Rutgers, which does not possess the Mi-1 gene, was susceptible (132 ± 9.9 galls/plant) to M. incognita infection. Exposure to a single 3 hr heat spike of 358C was sufficient to increase the susceptibility of ?Amelia? but did not affect Rutgers. Despite this change in resistance, Mi-1 gene expression was not affected by heat treatment, or nematode infection. The heat-induced breakdown of Mi-1 resistance in ?Amelia? did recover with time regardless of additional heat exposures and M. incognita infection. These findings would aid in the development of management strategies to protect the tomato crop at times of heightened M. incognita susceptibility.' |
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Palavras-Chave: |
Tomato (solanum lycopersicum L). |
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Thesaurus NAL: |
Meloidogyne; Nematoda. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/126610/1/Carvalho-MiTomato20and20heat.pdf
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Marc: |
LEADER 02051naa a2200253 a 4500
001 2019938
005 2016-04-29
008 2015 bl uuuu u00u1 u #d
100 1 $aCARVALHO, L. M. de
245 $aMi-1-mediated nematode resistance in tomatoes is broken by short-term heat stress but recovers over time.$h[electronic resource]
260 $c2015
520 $aTomato (Solanum lycopersicum L.) is among the most valuable agricultural products, but Meloidogyne spp. (root-knot nematode) infestations result in serious crop losses. In tomato, resistance to root-knot nematodes is controlled by the gene Mi-1, but heat stress interferes with Mi-1-associated resistance. Inconsistent results in published field and greenhouse experiments led us to test the effect of short-term midday heat stress on tomato susceptibility to Meloidogyne incognita race 1. Under controlled day/night temperatures of 258C/218C, ?Amelia?, which was verified as possessing the Mi-1 gene, was deemed resistant (4.1 ± 0.4 galls/plant) and Rutgers, which does not possess the Mi-1 gene, was susceptible (132 ± 9.9 galls/plant) to M. incognita infection. Exposure to a single 3 hr heat spike of 358C was sufficient to increase the susceptibility of ?Amelia? but did not affect Rutgers. Despite this change in resistance, Mi-1 gene expression was not affected by heat treatment, or nematode infection. The heat-induced breakdown of Mi-1 resistance in ?Amelia? did recover with time regardless of additional heat exposures and M. incognita infection. These findings would aid in the development of management strategies to protect the tomato crop at times of heightened M. incognita susceptibility.'
650 $aMeloidogyne
650 $aNematoda
653 $aTomato (solanum lycopersicum L)
700 1 $aBENDA, N. D.
700 1 $aVAUGHAN, M. M.
700 1 $aCABRERA, A. R.
700 1 $aHUNG, K.
700 1 $aCOX, T.
700 1 $aABDO, Z.
700 1 $aALLEN, L. H.
700 1 $aTEAL, P. E. A.
773 $tJournal of Nematology$gv. 47, n. 2, p. 133-140, June, 2015.
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