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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
16/11/2023 |
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Data da última atualização: |
16/11/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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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. |
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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. |
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Título: |
Epigenetic Memory In Citrus Scion/Rootstock Combinations Formed With Buds Challenged By Phytophthora Citrophthora. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: BRAZILIAN CONGRESS OF GENETICS, 68., 2023, Ouro Preto. Paleogenomics: sequencing ancient DNA. E-book. Ribeirão Preto: Sociedade Brasileira de Genética, 2023. |
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Páginas: |
p.380 |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Imunidade. |
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Thesaurus Nal: |
Biotic stress; DNA methylation; Epigenetics; Immunity; Oomycetes. |
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Categoria do assunto: |
-- |
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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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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
14/11/2005 |
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Data da última atualização: |
09/02/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FAZOLIN, M.; ESTRELA, J. L. V. |
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Afiliação: |
MURILO FAZOLIN, CPAF-AC; JOELMA LIMA VIDAL ESTRELA. |
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Título: |
Diversity of diurnal insects species in plants of an agroforesty system in Acre. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21.; BRAZILIAN CONGRESS OF ENTOMOLOGY, 18., 2000, Foz do Iguassu. Books abstracts: plenary lectures and sessions 01 to 24. Londrina: Embrapa Soja, 2000. |
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Páginas: |
p. 125. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
The agroforestry systems established in the Acre region are composed mainly of perennial plants such as peach palm (Bactris gasipaes), cupuaçu (Theobroma grandiflorum), coffee (Coffea arabica cv. Catuai), acai (Euterpe oleracea) and Brazil-nut (Bertholletia excelsa). In the first years of establishment of these systems, annual crops such as beans, rice and corn are intercropped between the lines of the perennial crops. This procedure increases the diversity of plant species in this agroescosystem, makes it possible to expect that an integration of some stable properties of natural communities takes place, particularly an increased diversity of insect species, resulting in a decrease of the level of infestation of pests. |
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Palavras-Chave: |
Acre; Sistema agroflorestal. |
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Thesagro: |
Inseto. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/502954/1/11804.pdf
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Marc: |
LEADER 01378nam a2200169 a 4500
001 1502954
005 2024-02-09
008 2000 bl uuuu u00u1 u #d
100 1 $aFAZOLIN, M.
245 $aDiversity of diurnal insects species in plants of an agroforesty system in Acre.$h[electronic resource]
260 $aIn: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21.; BRAZILIAN CONGRESS OF ENTOMOLOGY, 18., 2000, Foz do Iguassu. Books abstracts: plenary lectures and sessions 01 to 24. Londrina: Embrapa Soja$c2000
300 $ap. 125.$c1 CD-ROM.
520 $aThe agroforestry systems established in the Acre region are composed mainly of perennial plants such as peach palm (Bactris gasipaes), cupuaçu (Theobroma grandiflorum), coffee (Coffea arabica cv. Catuai), acai (Euterpe oleracea) and Brazil-nut (Bertholletia excelsa). In the first years of establishment of these systems, annual crops such as beans, rice and corn are intercropped between the lines of the perennial crops. This procedure increases the diversity of plant species in this agroescosystem, makes it possible to expect that an integration of some stable properties of natural communities takes place, particularly an increased diversity of insect species, resulting in a decrease of the level of infestation of pests.
650 $aInseto
653 $aAcre
653 $aSistema agroflorestal
700 1 $aESTRELA, J. L. V.
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Embrapa Acre (CPAF-AC) |
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