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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
24/05/2016 |
Data da última atualização: |
24/05/2016 |
Autoria: |
RODRIGUES, S. P.; CUNHA, M. da.; VENTURA, J. A.; FERNANDES, P. M. B. |
Afiliação: |
UFES; UENF; Jose Aires Ventura, Incaper; UFES. |
Título: |
Effcts of the Papaya meleira virus on papaya latex structure and composition. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
BIOTIC AND BIOTIC STRESS, v. 28, n. 5, p. 861-871, 2009. |
DOI: |
10.1007/s00299-009-0673-7 |
Idioma: |
Português |
Conteúdo: |
Spontaneous latex exudation is the main symptom of papaya sticky (meleira) disease caused by the Papaya meleira virus (PMeV), a double-stranded RNA (dsRNA) virus. This paper describes different effects of PMeV on papaya latex. Latex samples were subjected to different histochemical tests to evaluate their chemical composition. Additionally, the integrity of the latex particles was assessed by transmission and scanning electron microscopy analysis. Biochemical and micro- and macro-element measurements were performed. PMeV dsRNA extraction was performed to evaluate the interaction of the virus with the latex particles. Sticky diseased latex was positive for alkaloid biosynthesis and showed an accumulation of calcium oxalate crystals. PMeV also increased H(2)O(2) synthesis within sticky diseased laticifers. The protein, sugar and water levels were altered, probably due to chemical changes. The morphology of the latex particles was further altered; PMeV particles seemed to be bound to the latex particles. The alkaloid and H(2)O(2) biosynthesis in the papaya laticifers indicate a papaya defense response against PMeV. However, such efforts failed, as the virus affected the plant latex. The effects described here suggest some advantages of the infection process, including facilitating the movement of the virus within the papaya plant. |
Palavras-Chave: |
Mamão; Papaya. |
Thesaurus NAL: |
Carica papaya; Latex; Laticifers; Meleira; Papaya meleira virus; Papaya sticky disease. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02100naa a2200265 a 4500 001 1010909 005 2016-05-24 008 2009 bl uuuu u00u1 u #d 024 7 $a10.1007/s00299-009-0673-7$2DOI 100 1 $aRODRIGUES, S. P. 245 $aEffcts of the Papaya meleira virus on papaya latex structure and composition.$h[electronic resource] 260 $c2009 520 $aSpontaneous latex exudation is the main symptom of papaya sticky (meleira) disease caused by the Papaya meleira virus (PMeV), a double-stranded RNA (dsRNA) virus. This paper describes different effects of PMeV on papaya latex. Latex samples were subjected to different histochemical tests to evaluate their chemical composition. Additionally, the integrity of the latex particles was assessed by transmission and scanning electron microscopy analysis. Biochemical and micro- and macro-element measurements were performed. PMeV dsRNA extraction was performed to evaluate the interaction of the virus with the latex particles. Sticky diseased latex was positive for alkaloid biosynthesis and showed an accumulation of calcium oxalate crystals. PMeV also increased H(2)O(2) synthesis within sticky diseased laticifers. The protein, sugar and water levels were altered, probably due to chemical changes. The morphology of the latex particles was further altered; PMeV particles seemed to be bound to the latex particles. The alkaloid and H(2)O(2) biosynthesis in the papaya laticifers indicate a papaya defense response against PMeV. However, such efforts failed, as the virus affected the plant latex. The effects described here suggest some advantages of the infection process, including facilitating the movement of the virus within the papaya plant. 650 $aCarica papaya 650 $aLatex 650 $aLaticifers 650 $aMeleira 650 $aPapaya meleira virus 650 $aPapaya sticky disease 653 $aMamão 653 $aPapaya 700 1 $aCUNHA, M. da. 700 1 $aVENTURA, J. A. 700 1 $aFERNANDES, P. M. B. 773 $tBIOTIC AND BIOTIC STRESS$gv. 28, n. 5, p. 861-871, 2009.
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Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
20/07/2016 |
Data da última atualização: |
20/07/2016 |
Tipo da produção científica: |
Publicação em Anais de Congresso |
Autoria: |
ATHAYDE, J. T.; SANTOS, A. F. dos.; SILVA, A. A. da. |
Afiliação: |
José Tadeu Athayde, EMCAPA; Alvaro Figueredo dos Santos, EMCAPA; Antonio Alberto da Silva, EMCAPA. |
Título: |
Eficiência de cinco fungicidas no controle Á Puccinia alii em alho. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE OLERICULTURA, 22., 1982, Vitória. Resumos... Vitória: Sociedade de Olericultura do Brasil: Secretaria de Estado da Agricultura, 1982. 204 p. |
Idioma: |
Português |
Palavras-Chave: |
Alho; Espírito Santo (Estado); Ferrugem do alho; Fungicidas. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/2016/1/BRT-eficienciade5fungicidas.pdf
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Marc: |
LEADER 00645nam a2200169 a 4500 001 1011344 005 2016-07-20 008 1982 bl uuuu u01u1 u #d 100 1 $aATHAYDE, J. T. 245 $aEficiência de cinco fungicidas no controle Á Puccinia alii em alho.$h[electronic resource] 260 $aIn: CONGRESSO BRASILEIRO DE OLERICULTURA, 22., 1982, Vitória. Resumos... Vitória: Sociedade de Olericultura do Brasil: Secretaria de Estado da Agricultura, 1982. 204 p.$c1982 653 $aAlho 653 $aEspírito Santo (Estado) 653 $aFerrugem do alho 653 $aFungicidas 700 1 $aSANTOS, A. F. dos. 700 1 $aSILVA, A. A. da.
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