Stigma structure and receptivity in papaya (Carica papaya L.).

Detalhes bibliográficos
Autor(a) principal: FERREIRA, J. A. B.
Data de Publicação: 2021
Outros Autores: LEDO, C. A. da S., SOUZA, F. V. D., CONCEIÇÃO, J. Q., ROSSI, M. L., SOUZA, E. H.
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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spelling 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
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
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