Stigma structure and receptivity in papaya (Carica papaya L.).
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1136429 |
Resumo: | The objective of this study was to evaluate the stigma morphoanatomy and receptivity in ten promising papaya accessions, to expand knowledge useful for genetic improvement of the culture. The morphoanatomy was analyzed by light and scanning electron microscopy, and the stigma receptivity was investigated by application of hydrogen peroxide and α-naphthyl-acetate with fast blue B salt, in pre-anthesis, anthesis and post-anthesis. The papaya accessions presented dry stigma surface, presence of one to six erect stigmatic lobes, with structures joined to the upper base of the style and covered with numerous elongated unicellular tubular papillae, distributed on both faces of the epidermis. The morphoanatomy had a similar pattern in all the accessions, differing only in the timing of floral development. The stigma receptivity in some accessions occurred even before floral opening, continuing with greater intensity in anthesis and post-anthesis. Pre-anthesis is the stage least propitious for controlled hybridizations due to the weak or absent stigmatic receptivity. The results obtained provide information on the floral stage that is most propitious for fertilization, as well as supporting future investigations of the botanical morphology of the species. |
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Stigma structure and receptivity in papaya (Carica papaya L.).MamãoThe objective of this study was to evaluate the stigma morphoanatomy and receptivity in ten promising papaya accessions, to expand knowledge useful for genetic improvement of the culture. The morphoanatomy was analyzed by light and scanning electron microscopy, and the stigma receptivity was investigated by application of hydrogen peroxide and α-naphthyl-acetate with fast blue B salt, in pre-anthesis, anthesis and post-anthesis. The papaya accessions presented dry stigma surface, presence of one to six erect stigmatic lobes, with structures joined to the upper base of the style and covered with numerous elongated unicellular tubular papillae, distributed on both faces of the epidermis. The morphoanatomy had a similar pattern in all the accessions, differing only in the timing of floral development. The stigma receptivity in some accessions occurred even before floral opening, continuing with greater intensity in anthesis and post-anthesis. Pre-anthesis is the stage least propitious for controlled hybridizations due to the weak or absent stigmatic receptivity. The results obtained provide information on the floral stage that is most propitious for fertilization, as well as supporting future investigations of the botanical morphology of the species.JACQUELINE A.B. FERREIRA; CARLOS ALBERTO DA SILVA LEDO, CNPMF; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF; JOSIMARE Q. CONCEIÇÃO; MONICA L. ROSSI; EVERTON H. SOUZA.FERREIRA, J. A. B.LEDO, C. A. da S.SOUZA, F. V. D.CONCEIÇÃO, J. Q.ROSSI, M. L.SOUZA, E. H.2021-11-23T02:11:10Z2021-11-23T02:11:10Z2021-11-222021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAnais da Academia Brasileira de Ciências, v.93, n.1, e20190605 [2021?].1678-2690http://www.alice.cnptia.embrapa.br/alice/handle/doc/113642910.1590/0001-3765202120190605enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2021-11-23T02:11:18Zoai:www.alice.cnptia.embrapa.br:doc/1136429Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-11-23T02:11:18falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-11-23T02:11:18Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Stigma structure and receptivity in papaya (Carica papaya L.). |
title |
Stigma structure and receptivity in papaya (Carica papaya L.). |
spellingShingle |
Stigma structure and receptivity in papaya (Carica papaya L.). FERREIRA, J. A. B. Mamão |
title_short |
Stigma structure and receptivity in papaya (Carica papaya L.). |
title_full |
Stigma structure and receptivity in papaya (Carica papaya L.). |
title_fullStr |
Stigma structure and receptivity in papaya (Carica papaya L.). |
title_full_unstemmed |
Stigma structure and receptivity in papaya (Carica papaya L.). |
title_sort |
Stigma structure and receptivity in papaya (Carica papaya L.). |
author |
FERREIRA, J. A. B. |
author_facet |
FERREIRA, J. A. B. LEDO, C. A. da S. SOUZA, F. V. D. CONCEIÇÃO, J. Q. ROSSI, M. L. SOUZA, E. H. |
author_role |
author |
author2 |
LEDO, C. A. da S. SOUZA, F. V. D. CONCEIÇÃO, J. Q. ROSSI, M. L. SOUZA, E. H. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
JACQUELINE A.B. FERREIRA; CARLOS ALBERTO DA SILVA LEDO, CNPMF; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF; JOSIMARE Q. CONCEIÇÃO; MONICA L. ROSSI; EVERTON H. SOUZA. |
dc.contributor.author.fl_str_mv |
FERREIRA, J. A. B. LEDO, C. A. da S. SOUZA, F. V. D. CONCEIÇÃO, J. Q. ROSSI, M. L. SOUZA, E. H. |
dc.subject.por.fl_str_mv |
Mamão |
topic |
Mamão |
description |
The objective of this study was to evaluate the stigma morphoanatomy and receptivity in ten promising papaya accessions, to expand knowledge useful for genetic improvement of the culture. The morphoanatomy was analyzed by light and scanning electron microscopy, and the stigma receptivity was investigated by application of hydrogen peroxide and α-naphthyl-acetate with fast blue B salt, in pre-anthesis, anthesis and post-anthesis. The papaya accessions presented dry stigma surface, presence of one to six erect stigmatic lobes, with structures joined to the upper base of the style and covered with numerous elongated unicellular tubular papillae, distributed on both faces of the epidermis. The morphoanatomy had a similar pattern in all the accessions, differing only in the timing of floral development. The stigma receptivity in some accessions occurred even before floral opening, continuing with greater intensity in anthesis and post-anthesis. Pre-anthesis is the stage least propitious for controlled hybridizations due to the weak or absent stigmatic receptivity. The results obtained provide information on the floral stage that is most propitious for fertilization, as well as supporting future investigations of the botanical morphology of the species. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-23T02:11:10Z 2021-11-23T02:11:10Z 2021-11-22 2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Anais da Academia Brasileira de Ciências, v.93, n.1, e20190605 [2021?]. 1678-2690 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1136429 10.1590/0001-3765202120190605 |
identifier_str_mv |
Anais da Academia Brasileira de Ciências, v.93, n.1, e20190605 [2021?]. 1678-2690 10.1590/0001-3765202120190605 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1136429 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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