Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)

The agarophyte Gracilaria gracilis is an economically valuable species exploited in Argentina and the carpospore study is relevant since such spores are used as inoculum for commercial aquaculture. The aims of this work were to describe the carpospore release periodicity and carposporeling developme...

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Authors: Michetti, Karina Mariel, Martin, Lucas Ariel, Leonardi, Patricia Ines
Format: article
Status:Published version
Publication Date:2013
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/1467
Online Access:http://hdl.handle.net/11336/1467
Access Level:Open access
Keyword:CARPOSPORES
GERMINATION
GRACILARIA GRACILIS
SPORELING DEVELOPMENT
SPORULATION
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
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oai_identifier_str oai:ri.conicet.gov.ar:11336/1467
network_acronym_str AR
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repository_id_str
spelling Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)Michetti, Karina MarielMartin, Lucas ArielLeonardi, Patricia InesCARPOSPORESGERMINATIONGRACILARIA GRACILISSPORELING DEVELOPMENTSPORULATIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The agarophyte Gracilaria gracilis is an economically valuable species exploited in Argentina and the carpospore study is relevant since such spores are used as inoculum for commercial aquaculture. The aims of this work were to describe the carpospore release periodicity and carposporeling development and to evaluate the influence of temperature, irradiance, and day length on carpospore release under laboratory conditions. Desiccation, osmotic shock, and spontaneous discharge were compared as sporulation induction methods and the last one was the best method for improved carpospore release (ANOVA: F = 6.4018, P < 0.05; least significant difference (LSD) test: P < 0.05). The number of carpospores released per cystocarp per day at 13 °C was significantly greater than at 18 °C (Student?s t test: t = 3.89, P < 0.01). Moreover, carpospore release at 12:12-h light/dark (L/D) photoperiod was higher than at 8:16-h L/D photoperiod (Student?s t test: t = 2.54, P = 0.01). No evidence of differences in the number of carpospores per cystocarp per day between high, medium, and low irradiance was recognized (ANOVA: F = 0.82, P > 0.25). Sporulation time course analysis showed a peak during the first week with atotal carpospore release at the end of the sixth week of about 2,000 carpospores cystocarp−1 day−1. Carpospore germination and sporeling development were in agreement with the description for other Gracilaria species. This is the first work on carpospore release and germination for an Argentinian strain of G. gracilis and the results could be of interest for further commercial spore culture.Fil: Michetti, Karina Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Conicet - Bahia Blanca. Centro Rec.nat.renovables de Zona Semiarida(i); ArgentinaFil: Martin, Lucas Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Conicet - Bahia Blanca. Centro Rec.nat.renovables de Zona Semiarida(i); ArgentinaFil: Leonardi, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Conicet - Bahia Blanca. Centro Rec.nat.renovables de Zona Semiarida(i); ArgentinaSpringer2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1467Michetti, Karina Mariel; Martin, Lucas Ariel; Leonardi, Patricia Ines; Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina); Springer; Journal of Applied Phycology; 25; 6; 4-2013; 1917-19240921-8971enginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs10811-013-0029-0info:eu-repo/semantics/altIdentifier/doi/10.1007/s10811-013-0029-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:43:09Zoai:ri.conicet.gov.ar:11336/1467instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 13:43:09.583CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
title Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
spellingShingle Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
Michetti, Karina Mariel
CARPOSPORES
GERMINATION
GRACILARIA GRACILIS
SPORELING DEVELOPMENT
SPORULATION
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
title_full Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
title_fullStr Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
title_full_unstemmed Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
title_sort Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
dc.creator.none.fl_str_mv Michetti, Karina Mariel
Martin, Lucas Ariel
Leonardi, Patricia Ines
author Michetti, Karina Mariel
author_facet Michetti, Karina Mariel
Martin, Lucas Ariel
Leonardi, Patricia Ines
author_role author
author2 Martin, Lucas Ariel
Leonardi, Patricia Ines
author2_role author
author
dc.subject.none.fl_str_mv CARPOSPORES
GERMINATION
GRACILARIA GRACILIS
SPORELING DEVELOPMENT
SPORULATION
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic CARPOSPORES
GERMINATION
GRACILARIA GRACILIS
SPORELING DEVELOPMENT
SPORULATION
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description The agarophyte Gracilaria gracilis is an economically valuable species exploited in Argentina and the carpospore study is relevant since such spores are used as inoculum for commercial aquaculture. The aims of this work were to describe the carpospore release periodicity and carposporeling development and to evaluate the influence of temperature, irradiance, and day length on carpospore release under laboratory conditions. Desiccation, osmotic shock, and spontaneous discharge were compared as sporulation induction methods and the last one was the best method for improved carpospore release (ANOVA: F = 6.4018, P < 0.05; least significant difference (LSD) test: P < 0.05). The number of carpospores released per cystocarp per day at 13 °C was significantly greater than at 18 °C (Student?s t test: t = 3.89, P < 0.01). Moreover, carpospore release at 12:12-h light/dark (L/D) photoperiod was higher than at 8:16-h L/D photoperiod (Student?s t test: t = 2.54, P = 0.01). No evidence of differences in the number of carpospores per cystocarp per day between high, medium, and low irradiance was recognized (ANOVA: F = 0.82, P > 0.25). Sporulation time course analysis showed a peak during the first week with atotal carpospore release at the end of the sixth week of about 2,000 carpospores cystocarp−1 day−1. Carpospore germination and sporeling development were in agreement with the description for other Gracilaria species. This is the first work on carpospore release and germination for an Argentinian strain of G. gracilis and the results could be of interest for further commercial spore culture.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/1467
Michetti, Karina Mariel; Martin, Lucas Ariel; Leonardi, Patricia Ines; Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina); Springer; Journal of Applied Phycology; 25; 6; 4-2013; 1917-1924
0921-8971
url http://hdl.handle.net/11336/1467
identifier_str_mv Michetti, Karina Mariel; Martin, Lucas Ariel; Leonardi, Patricia Ines; Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina); Springer; Journal of Applied Phycology; 25; 6; 4-2013; 1917-1924
0921-8971
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs10811-013-0029-0
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10811-013-0029-0
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1799195086864515072
score 15.812455

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