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dc.contributor.author
Sánchez Puerta, María Virginia
dc.contributor.author
Leonardi, Patricia Ines
dc.contributor.author
O' Kelly, Charles J.
dc.contributor.author
Caceres, Eduardo Jorge
dc.date.available
2018-01-29T16:53:16Z
dc.date.issued
2006-07-11
dc.identifier.citation
Sánchez Puerta, María Virginia; Leonardi, Patricia Ines; O' Kelly, Charles J.; Caceres, Eduardo Jorge; Pseudulvella americana belongs to the order Chaetopeltidales (Class Chlorophyceae), evidence from ultrastructure and SSU rDNA sequence data; Wiley; Journal Of Phycology; 42; 4; 11-7-2006; 943-950
dc.identifier.issn
0022-3646
dc.identifier.uri
http://hdl.handle.net/11336/34864
dc.description.abstract
The genus Pseudulvella Wille 1909 includes epiphytic, freshwater, or marine disk-shaped green microalgae that form quadriflagellate zoospores. No ultrastructural or molecular studies have been conducted on the genus, and its evolutionary relationships remain unclear. The purpose of the present study is to describe the life history, ultrastructural features, and phylogenetic affiliations of Pseudulvella americana (Snow) Wille, the type species of the genus. Thalli of this microalga were prostrate and composed of radiating branched filaments that coalesced to form a disk. Vegetative cells had a pyrenoid encircled by starch plates and traversed by one or two convoluted cytoplasmic channels. They had well-defined cell walls without plasmodesmata. Asexual reproduction was by means of tetraflagellate zoospores formed in numbers of two to eight from central cells of the thallus. The flagellar apparatus of zoospores was cruciate, with four basal bodies and four microtubular roots. The paired basal bodies lay directly opposite (DO) one another. The microtubular root system had a 5-2-5-2 alternation pattern, where the “s” roots contained five microtubules in a four-over-one configuration. A tetralobate nonstriated distal fiber connected all four basal bodies. A wedge-shaped proximal sheath subtended each of the basal bodies. The ultrastructural features of the zoospores were those of members of the order Chaetopeltidales. Phylogenetic analyses based on SSU rDNA placed P. americana sister to Chaetopeltis orbicularis in a well-supported Chaetopeltidales clade. Such a combination of features confirmed that this alga is a member of the order Chaetopeltidales.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Chaetopeltidales
dc.subject
Chlorophyta
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Life History
dc.subject
Phylogeny
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Pseudulvella
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Ultrastructure
dc.subject.classification
Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Pseudulvella americana belongs to the order Chaetopeltidales (Class Chlorophyceae), evidence from ultrastructure and SSU rDNA sequence data
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-12T19:55:20Z
dc.journal.volume
42
dc.journal.number
4
dc.journal.pagination
943-950
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Sánchez Puerta, María Virginia. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Leonardi, Patricia Ines. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
dc.description.fil
Fil: O' Kelly, Charles J.. Bigelow Laboratory for Ocean Sciences, West Boothbay Harbor; Estados Unidos
dc.description.fil
Fil: Caceres, Eduardo Jorge. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
dc.journal.title
Journal Of Phycology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1529-8817.2006.00245.x/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1529-8817.2006.00245.x
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