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dc.contributor.author
Morales, Eduardo A.
dc.contributor.author
Novais, Mariahelena
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García, María Luján
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Maidana, Nora Irene
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Morais, María Manuela
dc.date.available
2022-12-16T16:58:07Z
dc.date.issued
2021-06
dc.identifier.citation
Morales, Eduardo A.; Novais, Mariahelena; García, María Luján; Maidana, Nora Irene; Morais, María Manuela; A new species of Punctastriata (Bacillariophyta, Fragilariophyceae) from temporary streams in southern Portugal; Magnolia Press; Phytotaxa; 507; 3; 6-2021; 261-265
dc.identifier.issn
1179-3155
dc.identifier.uri
http://hdl.handle.net/11336/181575
dc.description.abstract
The genus Punctastriata D.M.Williams & Round (1988: 278) contains species that are difficult to identify under light microscopy (LM) (Wetzel & Ector 2021). Their striae are composed of several rows of minute areolae that open interiorly into a single depression. It is the shadow created by this depression under LM that closely resembles the striae in species of Staurosirella D.M.Williams & Round (1988: 274); striae that are often said to have a punch hole appearance (Morales & Manoylov 2006). Thus, scanning electron microscopy (SEM) is often required to confirm the presence of a species of Punctastriata in a sample. Besides the typical multiseriate striae, produced by the formation of multiple viminules in the entire striae (both of these are the defining feature of the genus), the species share all the remaining features with other small araphid genera lacking a rimoportula, such as the already mentioned Staurosirella, but also Nanofrustulum Round, Hallstainsen & Paasche (1999: 345), Opephora P.Petit (1888: 130?131), Pseudostaurosira D.M.Williams & Round (1988: 276), Pseudostaurosiropsis E.Morales (2001: 116), Sarcophagodes E.Morales (2002: 111), Stauroforma R.J.Flower, Jones & Round (1996: 53), and Staurosira Ehrenberg (1843: 45) (see table 1 in Morales et al. 2019). To date, nine species have been included in Punctastriata (see table 1 in Wetzel & Ector 2021). These have been reported from around the globe, but by our own finding, it appears that new species can still be found, even in areas that have previously received attention. This is the case of temporary streams in southern Portugal, ecosystems with dynamic benthic communities, even in the dry period, when diatoms persist in the stream beds in reduced, shallow pools or as dry biofilms (Novais et al. 2020).
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Magnolia Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
PUNCTASTRIATA
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BACILLARIOPHYCEAE
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FRAGILARIACEAE
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PORTUGAL
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
A new species of Punctastriata (Bacillariophyta, Fragilariophyceae) from temporary streams in southern Portugal
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-19T16:00:17Z
dc.identifier.eissn
1179-3163
dc.journal.volume
507
dc.journal.number
3
dc.journal.pagination
261-265
dc.journal.pais
Nueva Zelanda
dc.description.fil
Fil: Morales, Eduardo A.. Universidade de Évora; Portugal
dc.description.fil
Fil: Novais, Mariahelena. Universidade de Évora; Portugal
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Fil: García, María Luján. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universitat Bremen; Alemania
dc.description.fil
Fil: Maidana, Nora Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina
dc.description.fil
Fil: Morais, María Manuela. Universidade de Évora; Portugal
dc.journal.title
Phytotaxa
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.11646/phytotaxa.507.3.3
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.507.3.3
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