Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.

Detalhes bibliográficos
Autor(a) principal: Toste, Marisa F.
Data de Publicação: 2003
Outros Autores: Parente, Manuela I., Neto, Ana I., Fletcher, Robert L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Texto Completo: http://hdl.handle.net/10400.3/2027
Resumo: Hidroclathrus clathradus is a common specie on the rocky intertidal shores of the island of São Miguel, Azores, mainly in spring and summer. Fertile saccate thaili appear in spring and disappear from late summer onward. Two types of life history were observed in culture: a direct-type and a heteromorphic, monophasic life history. In the direct type, reproductive cells from erect plants collected in the field developed directly into new erect thaili with plurilocular sporangia. In the heteromorphic life-hystory pattern, plurispores from the plurilocular sporangia of the erect thaili developed into filamentous prostate microthalli. These developed unilocular and plurilocular sporangia in both short-day and long-day conditions at 15-22 ºC. Unispores released from the unlocular sporangia developed into saccate thaili, whereas plurispores gave rise to filamentous prostate microthaili.
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spelling Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.Hydroclathrus clathradusPhaeophytaScytosiphonaceaeLife HistoryMorphologyHidroclathrus clathradus is a common specie on the rocky intertidal shores of the island of São Miguel, Azores, mainly in spring and summer. Fertile saccate thaili appear in spring and disappear from late summer onward. Two types of life history were observed in culture: a direct-type and a heteromorphic, monophasic life history. In the direct type, reproductive cells from erect plants collected in the field developed directly into new erect thaili with plurilocular sporangia. In the heteromorphic life-hystory pattern, plurispores from the plurilocular sporangia of the erect thaili developed into filamentous prostate microthalli. These developed unilocular and plurilocular sporangia in both short-day and long-day conditions at 15-22 ºC. Unispores released from the unlocular sporangia developed into saccate thaili, whereas plurispores gave rise to filamentous prostate microthaili.RÉSUMÉ: Hidroclathrus clathradus est une espèce commune de l'étage littoral sur les côtes rocheuses de l'íle de São Miguel. Açores, particulièrement au printemps et en été. Des boules irrégulières fertiles sont visibles dès le début du printemps jusqu'a la fin de I'été. Deux types de cycle vital ont été observés en culture: un type de développement direct et un autre monophasique et hétéromorphe. Dans le cycle monomorphique, des cellules reproductives des échantillons collectés se développent directement en nouvelles boules avec des sporocystes pluriloculaires. Dans le cycle vital hétéromorphique, des plurispores provenant des sporocystes pluriloculaires des thailes creux se développent en microthalles filamenteux. Ceux-ci donnent naissance à des sporocystes uni- et pluriloculaires à 15-22 ºC, que le jour soir long ou court. Les monospores libérées des sporocystes pluriloculaires donnent des gamétophytes globuleux tandis que les plurispores se développent en microthalles filamenteux.Association des Amis des Cryptogames (A.D.A.C.)Repositório da Universidade dos AçoresToste, Marisa F.Parente, Manuela I.Neto, Ana I.Fletcher, Robert L.2013-06-05T10:18:38Z2003-042011-06-28T14:01:26Z2003-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/2027eng0181-1568info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-03-07T10:04:30Zoai:repositorio.uac.pt:10400.3/2027Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T00:34:54.076697Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
title Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
spellingShingle Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
Toste, Marisa F.
Hydroclathrus clathradus
Phaeophyta
Scytosiphonaceae
Life History
Morphology
title_short Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
title_full Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
title_fullStr Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
title_full_unstemmed Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
title_sort Life history and phenology of Hydroclathrus clathratus (Scytosiphonaceae, Phaeophyceae) in the Azores.
author Toste, Marisa F.
author_facet Toste, Marisa F.
Parente, Manuela I.
Neto, Ana I.
Fletcher, Robert L.
author_role author
author2 Parente, Manuela I.
Neto, Ana I.
Fletcher, Robert L.
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Toste, Marisa F.
Parente, Manuela I.
Neto, Ana I.
Fletcher, Robert L.
dc.subject.por.fl_str_mv Hydroclathrus clathradus
Phaeophyta
Scytosiphonaceae
Life History
Morphology
topic Hydroclathrus clathradus
Phaeophyta
Scytosiphonaceae
Life History
Morphology
description Hidroclathrus clathradus is a common specie on the rocky intertidal shores of the island of São Miguel, Azores, mainly in spring and summer. Fertile saccate thaili appear in spring and disappear from late summer onward. Two types of life history were observed in culture: a direct-type and a heteromorphic, monophasic life history. In the direct type, reproductive cells from erect plants collected in the field developed directly into new erect thaili with plurilocular sporangia. In the heteromorphic life-hystory pattern, plurispores from the plurilocular sporangia of the erect thaili developed into filamentous prostate microthalli. These developed unilocular and plurilocular sporangia in both short-day and long-day conditions at 15-22 ºC. Unispores released from the unlocular sporangia developed into saccate thaili, whereas plurispores gave rise to filamentous prostate microthaili.
publishDate 2003
dc.date.none.fl_str_mv 2003-04
2003-04-01T00:00:00Z
2011-06-28T14:01:26Z
2013-06-05T10:18:38Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.3/2027
url http://hdl.handle.net/10400.3/2027
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0181-1568
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Association des Amis des Cryptogames (A.D.A.C.)
publisher.none.fl_str_mv Association des Amis des Cryptogames (A.D.A.C.)
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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