Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores

Detalhes bibliográficos
Autor(a) principal: Parente, Manuela I.
Data de Publicação: 2010
Outros Autores: Fletcher, Robert L., Neto, Ana I., Tittley, Ian, Sousa, Ana F., Draisma, Stefano, Gabriel, Daniela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/1675
Resumo: Copyright © 2010 by Walter de Gruyter.
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spelling Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the AzoresHecatonema terminalePhaeophyceaePunctaria tenuissimaLife HistoryMorphologyCopyright © 2010 by Walter de Gruyter.Punctaria tenuissima (Chordariaceae, Phaeophyceae) is reported for the first time from the Azores. Erect thalli were collected on the Island of Sa˜o Miguel; they were up to 3 cm long, flattened and often twisted. The plurilocular sporangia were formed from surface cells that were quadrate or rectangular in surface view. Unilocular sporangia were not observed in the field. In culture, the plurispores of P. tenuissima developed into Hecatonema-like, tufted, prostrate thalli that formed plurilocular sporangia. The plurispores of the prostrate thalli cultured at 158C with a long day (LD) photoperiod developed into new prostrate thalli, which in turn formed plurilocular sporangia. This cycle was repeated 5 times, resulting in several generations of reproductive prostrate thalli. When these cultures were cooled to 108C with a short day (SD) photoperiod, new erect thalli developed from the prostrate thalli resembling the thalli collected in the field. These erect blades produced unilocular and plurilocular sporangia on the same or on different thalli. The plurispores and unispores produced by the erect thalli at 108C under SD conditions once again developed into new prostrate thalli. This is the first report of unilocular sporangia formed in cultures of P. tenuissima. Sexual reproduction was not observed. The culture conditions, particularly temperature and daylength, appeared to influence the formation of erect blades. The Punctaria-like thalli were produced in 108C/SD conditions, whilst the Hecatonema-like thalli were produced under 108–158C/LD and SD conditions. These results are similar to those reported for P. tenuissima from other locations and suggest the occurrence of both direct and heteromorphic life histories in the Azorean algae.Walter de GruyterRepositório da Universidade dos AçoresParente, Manuela I.Fletcher, Robert L.Neto, Ana I.Tittley, IanSousa, Ana F.Draisma, StefanoGabriel, Daniela2013-03-15T12:48:05Z2010-06-082011-06-28T16:59:33Z2010-06-08T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1675engParente, Manuela I., Fletcher, R.L., Neto, Ana I., Tittley, Ian, Sousa, A.F., Draisma, S.G.A., Gabriel, Daniela (2010). "Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores". «Botanica Marina», 53(3): 223-231. http://dx.doi.org/10.1515/bot.2010.0300006-8055 (Print)info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:28:46Zoai:repositorio.uac.pt:10400.3/1675Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:02.599782Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
title Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
spellingShingle Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
Parente, Manuela I.
Hecatonema terminale
Phaeophyceae
Punctaria tenuissima
Life History
Morphology
title_short Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
title_full Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
title_fullStr Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
title_full_unstemmed Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
title_sort Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores
author Parente, Manuela I.
author_facet Parente, Manuela I.
Fletcher, Robert L.
Neto, Ana I.
Tittley, Ian
Sousa, Ana F.
Draisma, Stefano
Gabriel, Daniela
author_role author
author2 Fletcher, Robert L.
Neto, Ana I.
Tittley, Ian
Sousa, Ana F.
Draisma, Stefano
Gabriel, Daniela
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Parente, Manuela I.
Fletcher, Robert L.
Neto, Ana I.
Tittley, Ian
Sousa, Ana F.
Draisma, Stefano
Gabriel, Daniela
dc.subject.por.fl_str_mv Hecatonema terminale
Phaeophyceae
Punctaria tenuissima
Life History
Morphology
topic Hecatonema terminale
Phaeophyceae
Punctaria tenuissima
Life History
Morphology
description Copyright © 2010 by Walter de Gruyter.
publishDate 2010
dc.date.none.fl_str_mv 2010-06-08
2010-06-08T00:00:00Z
2011-06-28T16:59:33Z
2013-03-15T12:48:05Z
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 http://hdl.handle.net/10400.3/1675
url http://hdl.handle.net/10400.3/1675
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Parente, Manuela I., Fletcher, R.L., Neto, Ana I., Tittley, Ian, Sousa, A.F., Draisma, S.G.A., Gabriel, Daniela (2010). "Life history and morphological studies of Punctaria tenuissima (Chordariaceae, Phaeophyceae), a new record for the Azores". «Botanica Marina», 53(3): 223-231. http://dx.doi.org/10.1515/bot.2010.030
0006-8055 (Print)
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 Walter de Gruyter
publisher.none.fl_str_mv Walter de Gruyter
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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