Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/12337 |
Resumo: | The objective of this work was to assess the possible transport of cyanogenic glycosides from leaves of rubber tree crown clones (Hevea spp.) resistant to South American leaf blight to the trunk of the panel clones in which they are grafted. The cyanogenic potential (HCNp) of the crown clones was determined in the trunk bark, at different distances from the cambium, and its gradient was evaluated along the trunk. The correlation between the HCNp of the crown leaves and that of the trunk bark was also evaluated. HCNp determined in leaves showed a wide range variation in the species studied as crown clones, with the lowest values registered in H. nitida clones, and the highest ones in H. rigidifolia. In the trunk bark, the tissue layer nearer the cambium showed higher HCNp values. A positive basipetal gradient was observed along the trunk, i.e., there was an increase in HCNp from the apex toward the base. Although the grafted crowns influence the cyanogenic potential of the trunk bark of panel clones, the absence of correlation between the HCNp of the leaves and trunk bark indicates that the crown is not the main source of the cyanogenic glycosides found in the trunk. |
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Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blightTranslocação de glicosídeos cianogênicos em clones de copa de seringueira resistentes ao mal‑das‑folhasHevea; Microcyclus ulei; crown budding; HCNp; linamarin.Hevea; Microcyclus ulei; enxertia de copa; HCNp; linamarina.The objective of this work was to assess the possible transport of cyanogenic glycosides from leaves of rubber tree crown clones (Hevea spp.) resistant to South American leaf blight to the trunk of the panel clones in which they are grafted. The cyanogenic potential (HCNp) of the crown clones was determined in the trunk bark, at different distances from the cambium, and its gradient was evaluated along the trunk. The correlation between the HCNp of the crown leaves and that of the trunk bark was also evaluated. HCNp determined in leaves showed a wide range variation in the species studied as crown clones, with the lowest values registered in H. nitida clones, and the highest ones in H. rigidifolia. In the trunk bark, the tissue layer nearer the cambium showed higher HCNp values. A positive basipetal gradient was observed along the trunk, i.e., there was an increase in HCNp from the apex toward the base. Although the grafted crowns influence the cyanogenic potential of the trunk bark of panel clones, the absence of correlation between the HCNp of the leaves and trunk bark indicates that the crown is not the main source of the cyanogenic glycosides found in the trunk.O objetivo deste trabalho foi avaliar o possível transporte de glicosídeos cianogênicos de folhas de clones de copa de seringueira (Hevea spp.) resistentes ao mal‑das‑folhas para o tronco dos clones de painel em que estão enxertados. O potencial cianogênico (HCNp) dos clones de copa foi determinado na casca do tronco, a diferentes distâncias do câmbio, e o seu gradiente foi avaliado ao longo do tronco. Avaliou-se, também, a correlação entre o HCNp das folhas das copas e o da casca do tronco. O HCNp determinado nas folhas apresentou ampla faixa de variação nas espécies estudadas como clones de copa, com os menores valores registrados em clones de H. nitida e os maiores em H. rigidifolia. Na casca do tronco, a camada de tecido mais próxima ao câmbio apresentou valores mais elevados de HCNp. Um gradiente basípeto positivo foi observado ao longo do tronco, ou seja, houve aumento do HCNp do ápice para a base. Apesar de os clones de copa influenciarem o potencial cianogênico na casca do tronco dos clones de painel, a ausência de correlação entre o HCNp das folhas e o do tronco indica que a copa não é a fonte principal dos glicosídeos cianogênicos encontrados no tronco.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraEmbrapaMoraes, Larissa Alexandra CardosoMoreira, AdônisCordeiro, Everton RabeloMoraes, Vicente Haroldo de Figueiredo2012-08-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/12337Pesquisa Agropecuaria Brasileira; v.47, n.7, jul. 2012; 908-914Pesquisa Agropecuária Brasileira; v.47, n.7, jul. 2012; 908-9141678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAengporhttps://seer.sct.embrapa.br/index.php/pab/article/view/12337/7467https://seer.sct.embrapa.br/index.php/pab/article/view/12337/7485https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/12337/8335info:eu-repo/semantics/openAccess2012-08-17T14:14:18Zoai:ojs.seer.sct.embrapa.br:article/12337Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2012-08-17T14:14:18Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight Translocação de glicosídeos cianogênicos em clones de copa de seringueira resistentes ao mal‑das‑folhas |
title |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight |
spellingShingle |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight Moraes, Larissa Alexandra Cardoso Hevea; Microcyclus ulei; crown budding; HCNp; linamarin. Hevea; Microcyclus ulei; enxertia de copa; HCNp; linamarina. |
title_short |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight |
title_full |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight |
title_fullStr |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight |
title_full_unstemmed |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight |
title_sort |
Translocation of cyanogenic glycosides in rubber tree crown clones resistant to South American leaf blight |
author |
Moraes, Larissa Alexandra Cardoso |
author_facet |
Moraes, Larissa Alexandra Cardoso Moreira, Adônis Cordeiro, Everton Rabelo Moraes, Vicente Haroldo de Figueiredo |
author_role |
author |
author2 |
Moreira, Adônis Cordeiro, Everton Rabelo Moraes, Vicente Haroldo de Figueiredo |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Embrapa |
dc.contributor.author.fl_str_mv |
Moraes, Larissa Alexandra Cardoso Moreira, Adônis Cordeiro, Everton Rabelo Moraes, Vicente Haroldo de Figueiredo |
dc.subject.por.fl_str_mv |
Hevea; Microcyclus ulei; crown budding; HCNp; linamarin. Hevea; Microcyclus ulei; enxertia de copa; HCNp; linamarina. |
topic |
Hevea; Microcyclus ulei; crown budding; HCNp; linamarin. Hevea; Microcyclus ulei; enxertia de copa; HCNp; linamarina. |
description |
The objective of this work was to assess the possible transport of cyanogenic glycosides from leaves of rubber tree crown clones (Hevea spp.) resistant to South American leaf blight to the trunk of the panel clones in which they are grafted. The cyanogenic potential (HCNp) of the crown clones was determined in the trunk bark, at different distances from the cambium, and its gradient was evaluated along the trunk. The correlation between the HCNp of the crown leaves and that of the trunk bark was also evaluated. HCNp determined in leaves showed a wide range variation in the species studied as crown clones, with the lowest values registered in H. nitida clones, and the highest ones in H. rigidifolia. In the trunk bark, the tissue layer nearer the cambium showed higher HCNp values. A positive basipetal gradient was observed along the trunk, i.e., there was an increase in HCNp from the apex toward the base. Although the grafted crowns influence the cyanogenic potential of the trunk bark of panel clones, the absence of correlation between the HCNp of the leaves and trunk bark indicates that the crown is not the main source of the cyanogenic glycosides found in the trunk. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-08-13 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/12337 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/12337 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/12337/7467 https://seer.sct.embrapa.br/index.php/pab/article/view/12337/7485 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/12337/8335 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.47, n.7, jul. 2012; 908-914 Pesquisa Agropecuária Brasileira; v.47, n.7, jul. 2012; 908-914 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416700355411968 |