Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus
The ultrastructure of zoospores of Asterococcus superbus (Cienk.) Scherffel was studied to provide ultrastructural data relevant to the systematic position of the genus. Our results demonstrated that the motile cells of A. superbus were similar to those of the tetrasporalean algae, such as Tetraspor...
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2000
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223646_v36_n4_p714_Leonardi http://hdl.handle.net/20.500.12110/paper_00223646_v36_n4_p714_Leonardi |
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paper:paper_00223646_v36_n4_p714_Leonardi2023-06-08T14:50:04Z Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus Absolute configuration Asterococcus Asterococcus superbus Chlamydomonadales Fine structure Flagellar apparatus Pyrenoid Tetrasporales Volvocales Zoospores Asterococcus superbus Chlamydomonas reinhardtii Tetraspora Tetraspora cylindrica Tetraspora lubrica Tetrasporidium javanicum The ultrastructure of zoospores of Asterococcus superbus (Cienk.) Scherffel was studied to provide ultrastructural data relevant to the systematic position of the genus. Our results demonstrated that the motile cells of A. superbus were similar to those of the tetrasporalean algae, such as Tetraspora sp. and Tetrasporidium javanicum Moebius. The flagellar apparatus of A. superbus had the same clock-wise orientation of basal bodies and the V-shaped alignment of basal bodies as Tetraspora cylindrica (Wahlb.) Ag. and T. lubrica (Roth) Ag., but differed by having rhizoplasts. The motile cells of A. superbus displayed chlamydomonadal ultrastructure, similar to Chlamydomonas reinhardtii Dangeard, including the absolute configuration of the flagellar apparatus. The pyrenoid matrix in A. superbus, however, showed a large lateral invagination occupied by chloroplast stroma, a characteristic that has never been observed in Chlorophyta. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223646_v36_n4_p714_Leonardi http://hdl.handle.net/20.500.12110/paper_00223646_v36_n4_p714_Leonardi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Absolute configuration Asterococcus Asterococcus superbus Chlamydomonadales Fine structure Flagellar apparatus Pyrenoid Tetrasporales Volvocales Zoospores Asterococcus superbus Chlamydomonas reinhardtii Tetraspora Tetraspora cylindrica Tetraspora lubrica Tetrasporidium javanicum |
| spellingShingle |
Absolute configuration Asterococcus Asterococcus superbus Chlamydomonadales Fine structure Flagellar apparatus Pyrenoid Tetrasporales Volvocales Zoospores Asterococcus superbus Chlamydomonas reinhardtii Tetraspora Tetraspora cylindrica Tetraspora lubrica Tetrasporidium javanicum Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus |
| topic_facet |
Absolute configuration Asterococcus Asterococcus superbus Chlamydomonadales Fine structure Flagellar apparatus Pyrenoid Tetrasporales Volvocales Zoospores Asterococcus superbus Chlamydomonas reinhardtii Tetraspora Tetraspora cylindrica Tetraspora lubrica Tetrasporidium javanicum |
| description |
The ultrastructure of zoospores of Asterococcus superbus (Cienk.) Scherffel was studied to provide ultrastructural data relevant to the systematic position of the genus. Our results demonstrated that the motile cells of A. superbus were similar to those of the tetrasporalean algae, such as Tetraspora sp. and Tetrasporidium javanicum Moebius. The flagellar apparatus of A. superbus had the same clock-wise orientation of basal bodies and the V-shaped alignment of basal bodies as Tetraspora cylindrica (Wahlb.) Ag. and T. lubrica (Roth) Ag., but differed by having rhizoplasts. The motile cells of A. superbus displayed chlamydomonadal ultrastructure, similar to Chlamydomonas reinhardtii Dangeard, including the absolute configuration of the flagellar apparatus. The pyrenoid matrix in A. superbus, however, showed a large lateral invagination occupied by chloroplast stroma, a characteristic that has never been observed in Chlorophyta. |
| title |
Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus |
| title_short |
Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus |
| title_full |
Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus |
| title_fullStr |
Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus |
| title_full_unstemmed |
Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus |
| title_sort |
fine structure of biflagellate zoospores of asterococcus superbus (tetrasporales, chlorophyceae), including the absolute configuration of the flagellar apparatus |
| publishDate |
2000 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223646_v36_n4_p714_Leonardi http://hdl.handle.net/20.500.12110/paper_00223646_v36_n4_p714_Leonardi |
| _version_ |
1768545130238705664 |