Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix
peer reviewed The cyanobacterial genus Schizothrix is traditionally classified in the special family Schizotrichaceae (order Oscillatoriales) according to the structure of the filaments and thallus: one, two, or more ensheathed and fasciculated trichomes are enveloped by common sheaths. The fine Str...
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ftorbi:oai:orbi.ulg.ac.be:2268/16376 2024-10-13T14:02:26+00:00 Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix Komarek, J. Taton, A. Sulek, J. Wilmotte, Annick Kastovska, K. Elster, J. 2006-02 https://orbi.uliege.be/handle/2268/16376 https://orbi.uliege.be/bitstream/2268/16376/1/Komarek_2006_Crypt-Alg_531.pdf en eng Adac-Cryptogamie urn:issn:0181-1568 https://orbi.uliege.be/handle/2268/16376 info:hdl:2268/16376 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Cryptogamie Algologie, 27 (1), 53-62 (2006-02) conservation cyanobacteria cyanoprokaryotes Schizothrix ultrastructure taxonomy Life sciences Phytobiology (plant sciences forestry mycology.) Aquatic sciences & oceanology Sciences du vivant Biologie végétale (sciences végétales sylviculture mycologie.) Sciences aquatiques & océanologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2006 ftorbi 2024-09-27T07:02:06Z peer reviewed The cyanobacterial genus Schizothrix is traditionally classified in the special family Schizotrichaceae (order Oscillatoriales) according to the structure of the filaments and thallus: one, two, or more ensheathed and fasciculated trichomes are enveloped by common sheaths. The fine Structure of cells and filaments of two natural populations of typical Schizothrix-species (S. facilis, S lacustris) were investigated in our Study. The ultrastructure of trichomes was found to be similar to the pseudartabaenacean types (thylakoid arrangement, inclusions, cell wall), and indicates the close relationship to this group of simple filamentous cyanobacteria. The special life form, which was considered as the most important phenotypic intergeneric (and interfamilial) differentiating character was proven: Fasciculated trichomes are enveloped by their own sheaths, and form (usually heteropolar) filaments enveloped by mother common sheath. However, in spite of the fact that the ultrastructure and morphology of trichomes were found to be similar to other pseudanabacnacean types, the relationship to Pseudanabaenaceae must await detailed molecular studies to be more completely evaluated. The first molecular results concerning a few Schizothrix-like strains from Antarctica show that most belong to a cluster, which is separated from the other oscillatorian clusters. This could support the genetic basis of the Schizothrix genus. MICROMAT Article in Journal/Newspaper Antarc* Antarctica University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
conservation cyanobacteria cyanoprokaryotes Schizothrix ultrastructure taxonomy Life sciences Phytobiology (plant sciences forestry mycology.) Aquatic sciences & oceanology Sciences du vivant Biologie végétale (sciences végétales sylviculture mycologie.) Sciences aquatiques & océanologie |
spellingShingle |
conservation cyanobacteria cyanoprokaryotes Schizothrix ultrastructure taxonomy Life sciences Phytobiology (plant sciences forestry mycology.) Aquatic sciences & oceanology Sciences du vivant Biologie végétale (sciences végétales sylviculture mycologie.) Sciences aquatiques & océanologie Komarek, J. Taton, A. Sulek, J. Wilmotte, Annick Kastovska, K. Elster, J. Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix |
topic_facet |
conservation cyanobacteria cyanoprokaryotes Schizothrix ultrastructure taxonomy Life sciences Phytobiology (plant sciences forestry mycology.) Aquatic sciences & oceanology Sciences du vivant Biologie végétale (sciences végétales sylviculture mycologie.) Sciences aquatiques & océanologie |
description |
peer reviewed The cyanobacterial genus Schizothrix is traditionally classified in the special family Schizotrichaceae (order Oscillatoriales) according to the structure of the filaments and thallus: one, two, or more ensheathed and fasciculated trichomes are enveloped by common sheaths. The fine Structure of cells and filaments of two natural populations of typical Schizothrix-species (S. facilis, S lacustris) were investigated in our Study. The ultrastructure of trichomes was found to be similar to the pseudartabaenacean types (thylakoid arrangement, inclusions, cell wall), and indicates the close relationship to this group of simple filamentous cyanobacteria. The special life form, which was considered as the most important phenotypic intergeneric (and interfamilial) differentiating character was proven: Fasciculated trichomes are enveloped by their own sheaths, and form (usually heteropolar) filaments enveloped by mother common sheath. However, in spite of the fact that the ultrastructure and morphology of trichomes were found to be similar to other pseudanabacnacean types, the relationship to Pseudanabaenaceae must await detailed molecular studies to be more completely evaluated. The first molecular results concerning a few Schizothrix-like strains from Antarctica show that most belong to a cluster, which is separated from the other oscillatorian clusters. This could support the genetic basis of the Schizothrix genus. MICROMAT |
format |
Article in Journal/Newspaper |
author |
Komarek, J. Taton, A. Sulek, J. Wilmotte, Annick Kastovska, K. Elster, J. |
author_facet |
Komarek, J. Taton, A. Sulek, J. Wilmotte, Annick Kastovska, K. Elster, J. |
author_sort |
Komarek, J. |
title |
Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix |
title_short |
Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix |
title_full |
Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix |
title_fullStr |
Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix |
title_full_unstemmed |
Ultrastructure and taxonomic position of two species of the cyanobacterial genus Schizothrix |
title_sort |
ultrastructure and taxonomic position of two species of the cyanobacterial genus schizothrix |
publisher |
Adac-Cryptogamie |
publishDate |
2006 |
url |
https://orbi.uliege.be/handle/2268/16376 https://orbi.uliege.be/bitstream/2268/16376/1/Komarek_2006_Crypt-Alg_531.pdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Cryptogamie Algologie, 27 (1), 53-62 (2006-02) |
op_relation |
urn:issn:0181-1568 https://orbi.uliege.be/handle/2268/16376 info:hdl:2268/16376 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1812817252632756224 |