Morpho-anatomical, physiological and biochemical changes in rubber tree seeds
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/35311 |
Resumo: | The physical, physiological and biochemical changes during the development until the dispersal of rubber tree seeds were evaluated with the purpose of estimating the point at physiological maturity. A total of 30 plants were selected at different points in a commercial planting area and had their flowers marked during the anthesis and every 15 days after marking. Fruits and seeds were collected for analysis of moisture content, dry matter, diameter and length. Details of the anatomy ultra-structure of the seeds were evaluated. The seed emergence, emergency speed index, heat resistant proteins and oxidative stress enzymes were examined. It was observed that fruits reached maximum size at 120 days after anthesis and seeds at 150 days. The seeds acquired germination capacity after 150 days. At 175 days, they presented the highest percentage of dry matter and lowest moisture, in addition to a higher percentage of germination and vigor. Therefore, it was possible to conclude that the physiological maturity of the rubber tree seeds occurs at 175 days after anthesis, and coincides with its maximum physiological quality. At 175 and 180 days post-anthesis, there is a greater expression of heat resistant proteins as well as low molecular weight and greater oxidative stress enzyme activity. |
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Morpho-anatomical, physiological and biochemical changes in rubber tree seedsGerminationOxidative stress enzymesPhysiological maturitySeeds developmentThe physical, physiological and biochemical changes during the development until the dispersal of rubber tree seeds were evaluated with the purpose of estimating the point at physiological maturity. A total of 30 plants were selected at different points in a commercial planting area and had their flowers marked during the anthesis and every 15 days after marking. Fruits and seeds were collected for analysis of moisture content, dry matter, diameter and length. Details of the anatomy ultra-structure of the seeds were evaluated. The seed emergence, emergency speed index, heat resistant proteins and oxidative stress enzymes were examined. It was observed that fruits reached maximum size at 120 days after anthesis and seeds at 150 days. The seeds acquired germination capacity after 150 days. At 175 days, they presented the highest percentage of dry matter and lowest moisture, in addition to a higher percentage of germination and vigor. Therefore, it was possible to conclude that the physiological maturity of the rubber tree seeds occurs at 175 days after anthesis, and coincides with its maximum physiological quality. At 175 and 180 days post-anthesis, there is a greater expression of heat resistant proteins as well as low molecular weight and greater oxidative stress enzyme activity.Academia Brasileira de Ciências (ABC)2019-07-16T10:59:29Z2019-07-16T10:59:29Z2018-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSOUZA, G. A. de et al. Morpho-anatomical, physiological and biochemical changes in rubber tree seeds. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 90, n. 2, p. 1625-1641, Apr./June 2018. DOI: 10.1590/0001-3765201820170340.http://repositorio.ufla.br/jspui/handle/1/35311Anais da Academia Brasileira de Ciênciasreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessSouza, Genaina A. deDias, Denise C. F. S.Pimenta, Thaline M.Cardoso, Amanda Á.Pires, Raquel M. O.Alvarenga, Antônio P.Pícoli, Edgard A. T.eng2019-07-16T10:59:30Zoai:localhost:1/35311Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-07-16T10:59:30Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds |
title |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds |
spellingShingle |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds Souza, Genaina A. de Germination Oxidative stress enzymes Physiological maturity Seeds development |
title_short |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds |
title_full |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds |
title_fullStr |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds |
title_full_unstemmed |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds |
title_sort |
Morpho-anatomical, physiological and biochemical changes in rubber tree seeds |
author |
Souza, Genaina A. de |
author_facet |
Souza, Genaina A. de Dias, Denise C. F. S. Pimenta, Thaline M. Cardoso, Amanda Á. Pires, Raquel M. O. Alvarenga, Antônio P. Pícoli, Edgard A. T. |
author_role |
author |
author2 |
Dias, Denise C. F. S. Pimenta, Thaline M. Cardoso, Amanda Á. Pires, Raquel M. O. Alvarenga, Antônio P. Pícoli, Edgard A. T. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Genaina A. de Dias, Denise C. F. S. Pimenta, Thaline M. Cardoso, Amanda Á. Pires, Raquel M. O. Alvarenga, Antônio P. Pícoli, Edgard A. T. |
dc.subject.por.fl_str_mv |
Germination Oxidative stress enzymes Physiological maturity Seeds development |
topic |
Germination Oxidative stress enzymes Physiological maturity Seeds development |
description |
The physical, physiological and biochemical changes during the development until the dispersal of rubber tree seeds were evaluated with the purpose of estimating the point at physiological maturity. A total of 30 plants were selected at different points in a commercial planting area and had their flowers marked during the anthesis and every 15 days after marking. Fruits and seeds were collected for analysis of moisture content, dry matter, diameter and length. Details of the anatomy ultra-structure of the seeds were evaluated. The seed emergence, emergency speed index, heat resistant proteins and oxidative stress enzymes were examined. It was observed that fruits reached maximum size at 120 days after anthesis and seeds at 150 days. The seeds acquired germination capacity after 150 days. At 175 days, they presented the highest percentage of dry matter and lowest moisture, in addition to a higher percentage of germination and vigor. Therefore, it was possible to conclude that the physiological maturity of the rubber tree seeds occurs at 175 days after anthesis, and coincides with its maximum physiological quality. At 175 and 180 days post-anthesis, there is a greater expression of heat resistant proteins as well as low molecular weight and greater oxidative stress enzyme activity. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-06 2019-07-16T10:59:29Z 2019-07-16T10:59:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SOUZA, G. A. de et al. Morpho-anatomical, physiological and biochemical changes in rubber tree seeds. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 90, n. 2, p. 1625-1641, Apr./June 2018. DOI: 10.1590/0001-3765201820170340. http://repositorio.ufla.br/jspui/handle/1/35311 |
identifier_str_mv |
SOUZA, G. A. de et al. Morpho-anatomical, physiological and biochemical changes in rubber tree seeds. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 90, n. 2, p. 1625-1641, Apr./June 2018. DOI: 10.1590/0001-3765201820170340. |
url |
http://repositorio.ufla.br/jspui/handle/1/35311 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Ciências (ABC) |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências (ABC) |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1784549949341433856 |