dc.contributor.author
Jahn, Regine
dc.contributor.author
Abarca, Nélida
dc.contributor.author
Kusber, Wolf-Henning
dc.contributor.author
Skibbe, Oliver
dc.contributor.author
Zimmermann, Jonas
dc.contributor.author
Mora, Demetrio
dc.date.accessioned
2021-02-10T10:14:05Z
dc.date.available
2021-02-10T10:14:05Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/29575
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-29319
dc.description.abstract
Cocconeis coreana and C. sijunghoensis are described as new based on micromorphological and molecular data C. coreana is represented by five unialgal cultures from four different freshwater bodies, two from North Korea and three from South Korea. C. sijunghoensis is represented by two unialgal cultures from a brackish water body in North Korea. Except for one, all of the strains auxosporulated and showed an almost quadrupling of size in length and width. Morphologically, these species with their two different elliptical valves belong to the Cocconeis placentula group. The raphe valve has striae with uniseriate areolae continuing across a pronounced submarginal hyaline rim to the edge of the valve. The sternum valve has uniseriate dash-like areolae continuously from the valve face until the valve edge. Micromorphologically, these species possess two different open valvocopulae: only the raphe valvocopula has fimbriae; the sternum valvocopula has none. Based on p-distances of currently available DNA sequence data, i.e., rbcL and 18SV4, both species are pronouncedly different from the epitype strain of C. placentula, with C. coreana closest to the published molecular data of the strain UTEX FD23 named C. placentula from Iowa, USA, while C. sijunghoensis is closest but not the same as the publ is hed molecular data of strain D36_012, the epitype strain of C. placentula from Berlin, Germany. Based on scanning elect ron microscope observations, differentiating features are discussed concerning valvocopula fimbriae, central area, areolation of the sternum valve and on the raphe valve especially between the submarginal hyaline rim and edge.
en
dc.format.extent
22 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by-nc/4.0/
dc.subject
micromorphology
en
dc.subject
molecular markers
en
dc.subject
morphometrics
en
dc.subject
185V4 & rbcL
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::579 Mikroorganismen, Pilze, Algen
dc.title
Integrative taxonomic description of two new species of the Cocconeis placentula group (Bacillariophyceae) from Korea based on unialgal strains
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.4490/algae.2020.35.8.1
dcterms.bibliographicCitation.journaltitle
Algae
dcterms.bibliographicCitation.number
4
dcterms.bibliographicCitation.pagestart
303
dcterms.bibliographicCitation.pageend
324
dcterms.bibliographicCitation.volume
35
dcterms.bibliographicCitation.url
https://doi.org/10.4490/algae.2020.35.8.1
refubium.affiliation
Botanischer Garten und Botanisches Museum Berlin-Dahlem (BGBM)
refubium.funding
Publikationsfonds FU
refubium.note.author
Die Publikation wurde aus Open Access Publikationsgeldern der Freien Universität Berlin gefördert.
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1226-2617
dcterms.isPartOf.eissn
2093-0860
refubium.resourceType.provider
WoS-Alert