Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower

The editor version is available at: http://www.amjbot.org/cgi/content/full/90/1/78

Detalles Bibliográficos
Autores: Sanzol Sanz, Javier, Rallo, Pilar, Herrero Romero, María
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/4082
Acceso en línea:http://hdl.handle.net/10261/4082
Access Level:acceso abierto
Palabra clave:Pollen germination
Pyrus communis
Rosaceae
Stigma
Stigmatic receptivity
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spelling Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flowerSanzol Sanz, JavierRallo, PilarHerrero Romero, MaríaPollen germinationPyrus communisRosaceaeStigmaStigmatic receptivityThe editor version is available at: http://www.amjbot.org/cgi/content/full/90/1/78While stigma anatomy is well documented for a good number of species, little information is available on the acquisition and cessation of stigmatic receptivity. The aim of this work is to characterize the development of stigma receptivity, from anthesis to stigma degeneration, in the pentacarpellar pear (Pyrus communis) flower. Stigma development and stigmatic receptivity were monitored over two consecutive years, as the capacity of the stigmas to offer support for pollen germination and pollen tube growth. In an experiment where hand pollinations were delayed for specified times after anthesis, three different stigmatic developmental stages could be observed: (1) immature stigmas, which allow pollen adhesion but not hydration; (2) receptive stigmas, which allow proper pollen hydration and germination; and (3) degenerated stigmas, in which pollen hydrates and germinates properly, but pollen tube growth is impaired soon after germination. This developmental characterization showed that stigmas in different developmental stages coexist within a flower and that the acquisition and cessation of stigmatic receptivity by each carpel occur in a sequential manner. In this way, while the duration of stigmatic receptivity for each carpel is rather short, the flower has an expanded receptive period. This asynchronous period of receptivity for the different stigmas of a single flower is discussed as a strategy that could serve to maximize pollination resources under unreliable pollination conditions.J. Sanzol was supported by an INIA fellowship and financial support for this work was also provided by INIA (Project grants SC98-049 and RTA 01-103).Peer reviewedBotanical Society of America200820082003info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65011175531 bytesapplication/pdfhttp://hdl.handle.net/10261/4082reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/40822026-05-22T06:33:51Z
dc.title.none.fl_str_mv Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
title Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
spellingShingle Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
Sanzol Sanz, Javier
Pollen germination
Pyrus communis
Rosaceae
Stigma
Stigmatic receptivity
title_short Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
title_full Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
title_fullStr Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
title_full_unstemmed Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
title_sort Asynchronous development of stigmatic receptivity in the pear (Pyrus communis; Rosaceae) flower
dc.creator.none.fl_str_mv Sanzol Sanz, Javier
Rallo, Pilar
Herrero Romero, María
author Sanzol Sanz, Javier
author_facet Sanzol Sanz, Javier
Rallo, Pilar
Herrero Romero, María
author_role author
author2 Rallo, Pilar
Herrero Romero, María
author2_role author
author
dc.subject.none.fl_str_mv Pollen germination
Pyrus communis
Rosaceae
Stigma
Stigmatic receptivity
topic Pollen germination
Pyrus communis
Rosaceae
Stigma
Stigmatic receptivity
description The editor version is available at: http://www.amjbot.org/cgi/content/full/90/1/78
publishDate 2003
dc.date.none.fl_str_mv 2003
2008
2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/4082
url http://hdl.handle.net/10261/4082
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1175531 bytes
application/pdf
dc.publisher.none.fl_str_mv Botanical Society of America
publisher.none.fl_str_mv Botanical Society of America
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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