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dc.contributor.author
Michetti, Karina Mariel
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dc.contributor.author
Martin, Lucas Ariel
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dc.contributor.author
Leonardi, Patricia Ines
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dc.date.available
2015-07-23T18:37:04Z
dc.date.issued
2013-04
dc.identifier.citation
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
dc.identifier.issn
0921-8971
dc.identifier.uri
http://hdl.handle.net/11336/1467
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CARPOSPORES
dc.subject
GERMINATION
dc.subject
GRACILARIA GRACILIS
dc.subject
SPORELING DEVELOPMENT
dc.subject
SPORULATION
dc.subject.classification
Biología Marina, Limnología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern atlantic coast (Chubut, Argentina)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
25
dc.journal.number
6
dc.journal.pagination
1917-1924
dc.journal.pais
Alemania
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dc.description.fil
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); Argentina
dc.description.fil
Fil: Martin, Lucas Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Conicet - Bahia Blanca. Centro Rec.nat.renovables de Zona Semiarida(i); Argentina
dc.description.fil
Fil: Leonardi, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Conicet - Bahia Blanca. Centro Rec.nat.renovables de Zona Semiarida(i); Argentina
dc.journal.title
Journal of Applied Phycology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs10811-013-0029-0
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10811-013-0029-0
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