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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
16/11/2023 |
Data da última atualização: |
16/11/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SILVA, A. R. da; SILVA, D. da C.; PINTO, K. N. dos S.; SANTOS FILHO, H. P.; COELHO FILHO, M. A.; FERREIRA, C. F.; GESTEIRA, A. da S. |
Afiliação: |
ADIELLE RODRIGUES DA SILVA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; DELMIRA DA COSTA SILVA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; KALIANE NASCIMENTO DOS SANTOS PINTO, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; HERMES PEIXOTO SANTOS FILHO; MAURICIO ANTONIO COELHO FILHO, CNPMF; CLAUDIA FORTES FERREIRA, CNPMF; ABELMON DA SILVA GESTEIRA, CNPMF. |
Título: |
Epigenetic Memory In Citrus Scion/Rootstock Combinations Formed With Buds Challenged By Phytophthora Citrophthora. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
In: BRAZILIAN CONGRESS OF GENETICS, 68., 2023, Ouro Preto. Paleogenomics: sequencing ancient DNA. E-book. Ribeirão Preto: Sociedade Brasileira de Genética, 2023. |
Páginas: |
p.380 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Studies show that DNA methylation is involved in plant immunity, but little is known about how plants employ this epigenetic mechanism to adjust their responses to biotic stress, especially in plant interactions with hemibiotrophic pathogens such as Citrus Phytophthora. The objective of this work was to verify the activation of the stress memory in the responses to infection by P. citrophthora in combinations scion/rootstock of citrus - seedlings of 'Pera' sweet orange and 'Tahiti' acid lime grafted in rootstock 'Rangpur' lime and 'Tropical' sunki mandarin formed from buds challenged by this pathogen. The methodology used was the inoculation with mycelium disc of P. citrophthora on rootstock stems, and buds from the scion of these plants were grafted onto new rootstocks to verify that these new seedlings they had memorized the stress and responded better to the infection of the pathogen. Results showed that in the combinations Pera/Rangpur and Tahiti/Tropical combinations, with variety more and less sensitive to the pathogen, the seedlings formed with buds challenged by this pathogen showed smaller lesion size on the stem and more intense frequency for the complete methylation and hemimethylation profile. The opposite reaction was observed in Tahiti/Rangpur, two more sensitive varieties, and Pera/Tropical, two less sensitive varieties, which showed a higher frequency of the hemimethylation and non-methylation profile. It is concluded that the scion/rootstock interaction influenced the response to infection caused by the oomycete and DNA methylation patterns, and combinations with more and less sensitive varieties challenged with the pathogen showed an improved response to infection. MenosAbstract: Studies show that DNA methylation is involved in plant immunity, but little is known about how plants employ this epigenetic mechanism to adjust their responses to biotic stress, especially in plant interactions with hemibiotrophic pathogens such as Citrus Phytophthora. The objective of this work was to verify the activation of the stress memory in the responses to infection by P. citrophthora in combinations scion/rootstock of citrus - seedlings of 'Pera' sweet orange and 'Tahiti' acid lime grafted in rootstock 'Rangpur' lime and 'Tropical' sunki mandarin formed from buds challenged by this pathogen. The methodology used was the inoculation with mycelium disc of P. citrophthora on rootstock stems, and buds from the scion of these plants were grafted onto new rootstocks to verify that these new seedlings they had memorized the stress and responded better to the infection of the pathogen. Results showed that in the combinations Pera/Rangpur and Tahiti/Tropical combinations, with variety more and less sensitive to the pathogen, the seedlings formed with buds challenged by this pathogen showed smaller lesion size on the stem and more intense frequency for the complete methylation and hemimethylation profile. The opposite reaction was observed in Tahiti/Rangpur, two more sensitive varieties, and Pera/Tropical, two less sensitive varieties, which showed a higher frequency of the hemimethylation and non-methylation profile. It is concluded that the scion/rootstock intera... Mostrar Tudo |
Thesagro: |
Imunidade. |
Thesaurus Nal: |
Biotic stress; DNA methylation; Epigenetics; Immunity; Oomycetes. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02621nam a2200265 a 4500 001 2158474 005 2023-11-16 008 2023 bl uuuu u00u1 u #d 100 1 $aSILVA, A. R. da 245 $aEpigenetic Memory In Citrus Scion/Rootstock Combinations Formed With Buds Challenged By Phytophthora Citrophthora.$h[electronic resource] 260 $aIn: BRAZILIAN CONGRESS OF GENETICS, 68., 2023, Ouro Preto. Paleogenomics: sequencing ancient DNA. E-book. Ribeirão Preto: Sociedade Brasileira de Genética$c2023 300 $ap.380 520 $aAbstract: Studies show that DNA methylation is involved in plant immunity, but little is known about how plants employ this epigenetic mechanism to adjust their responses to biotic stress, especially in plant interactions with hemibiotrophic pathogens such as Citrus Phytophthora. The objective of this work was to verify the activation of the stress memory in the responses to infection by P. citrophthora in combinations scion/rootstock of citrus - seedlings of 'Pera' sweet orange and 'Tahiti' acid lime grafted in rootstock 'Rangpur' lime and 'Tropical' sunki mandarin formed from buds challenged by this pathogen. The methodology used was the inoculation with mycelium disc of P. citrophthora on rootstock stems, and buds from the scion of these plants were grafted onto new rootstocks to verify that these new seedlings they had memorized the stress and responded better to the infection of the pathogen. Results showed that in the combinations Pera/Rangpur and Tahiti/Tropical combinations, with variety more and less sensitive to the pathogen, the seedlings formed with buds challenged by this pathogen showed smaller lesion size on the stem and more intense frequency for the complete methylation and hemimethylation profile. The opposite reaction was observed in Tahiti/Rangpur, two more sensitive varieties, and Pera/Tropical, two less sensitive varieties, which showed a higher frequency of the hemimethylation and non-methylation profile. It is concluded that the scion/rootstock interaction influenced the response to infection caused by the oomycete and DNA methylation patterns, and combinations with more and less sensitive varieties challenged with the pathogen showed an improved response to infection. 650 $aBiotic stress 650 $aDNA methylation 650 $aEpigenetics 650 $aImmunity 650 $aOomycetes 650 $aImunidade 700 1 $aSILVA, D. da C. 700 1 $aPINTO, K. N. dos S. 700 1 $aSANTOS FILHO, H. P. 700 1 $aCOELHO FILHO, M. A. 700 1 $aFERREIRA, C. F. 700 1 $aGESTEIRA, A. da S.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
09/09/2004 |
Data da última atualização: |
27/03/2017 |
Autoria: |
TOMICH, T. R.; RODRIGUES, J. A. S.; TOMICH, R. G. P.; GONÇALVES, L. C.; BORGES, I. |
Afiliação: |
Embrapa Pantanal (Corumbá, MS); Embrapa Milho e Sorgo; ICB/UFMG; VET/UFMG. |
Título: |
Rendimento forrageiro e composição bromatológica de genótipos de sorgo com capim-sudão manejados em regime de corte. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE MILHO E SORGO, 25., 2004, Cuiaba. Resumos... Cuiaba: EMPAER-MT: ABMS; Sete Lagoas: Embrapa Milho e Sorgo, 2004. (CD-ROM). |
Idioma: |
Português |
Conteúdo: |
O uso de forragem cultivada é uma alternativa para reduzir o efeito negativo da queda na disponibilidade e na qualidade das pastagens sobre a produção dos animais criados a pasto. Conforme Zago (1997), os híbridos de sorgo granífero (Sorghum bicolor cv. bicolor) com capim-sudão (Sorghum bicolor cv. sudanense) têm sido cultivados no verão na região Sul do País, com o objetivo de suprir as deficiências dos campos nativos locais. Já no Brasil Central, segundo Rodrigues (2000), esses hídridos, utilizados para corte ou pastejo, são adequados para atender à demanda por volumoso, que ocorre no final do outono e início do inverno ou, de acordo com Zago (1997), para garantir o suprimento de forragem no final da primavera e no início do verão, quanto as pastagens ainda não se apresentam com o bom desenvolvimento. |
Palavras-Chave: |
Cultivated forage; Forragem cultivada; Pastejo Sorgo; Productivity; Ruminant; Sorgo de pastejo; Voluminous; Volumoso. |
Thesagro: |
Produtividade; Ruminante. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01749naa a2200289 a 4500 001 1811133 005 2017-03-27 008 2004 bl --- 0-- u #d 100 1 $aTOMICH, T. R. 245 $aRendimento forrageiro e composição bromatológica de genótipos de sorgo com capim-sudão manejados em regime de corte. 260 $c2004 520 $aO uso de forragem cultivada é uma alternativa para reduzir o efeito negativo da queda na disponibilidade e na qualidade das pastagens sobre a produção dos animais criados a pasto. Conforme Zago (1997), os híbridos de sorgo granífero (Sorghum bicolor cv. bicolor) com capim-sudão (Sorghum bicolor cv. sudanense) têm sido cultivados no verão na região Sul do País, com o objetivo de suprir as deficiências dos campos nativos locais. Já no Brasil Central, segundo Rodrigues (2000), esses hídridos, utilizados para corte ou pastejo, são adequados para atender à demanda por volumoso, que ocorre no final do outono e início do inverno ou, de acordo com Zago (1997), para garantir o suprimento de forragem no final da primavera e no início do verão, quanto as pastagens ainda não se apresentam com o bom desenvolvimento. 650 $aProdutividade 650 $aRuminante 653 $aCultivated forage 653 $aForragem cultivada 653 $aPastejo Sorgo 653 $aProductivity 653 $aRuminant 653 $aSorgo de pastejo 653 $aVoluminous 653 $aVolumoso 700 1 $aRODRIGUES, J. A. S. 700 1 $aTOMICH, R. G. P. 700 1 $aGONÇALVES, L. C. 700 1 $aBORGES, I. 773 $tIn: CONGRESSO NACIONAL DE MILHO E SORGO, 25., 2004, Cuiaba. Resumos... Cuiaba: EMPAER-MT: ABMS; Sete Lagoas: Embrapa Milho e Sorgo, 2004. (CD-ROM).
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