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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Leonardi, P.I., Rodríguez, M.C., Cáceres, E.J.
Formato: JOUR
Materias:
Absolute configuration
Asterococcus
Asterococcus superbus
Chlamydomonadales
Fine structure
Flagellar apparatus
Pyrenoid
Tetrasporales
Volvocales
Zoospores
Chlamydomonas reinhardtii
Tetraspora
Tetraspora cylindrica
Tetraspora lubrica
Tetrasporidium javanicum
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00223646_v36_n4_p714_Leonardi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00223646_v36_n4_p714_Leonardi
record_format dspace
spelling todo:paper_00223646_v36_n4_p714_Leonardi2023-10-03T14:31:59Z Fine structure of biflagellate zoospores of Asterococcus superbus (Tetrasporales, Chlorophyceae), including the absolute configuration of the flagellar apparatus Leonardi, P.I. Rodríguez, M.C. Cáceres, E.J. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Leonardi, P.I.
Rodríguez, M.C.
Cáceres, E.J.
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.
format JOUR
author Leonardi, P.I.
Rodríguez, M.C.
Cáceres, E.J.
author_facet Leonardi, P.I.
Rodríguez, M.C.
Cáceres, E.J.
author_sort Leonardi, P.I.
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
url http://hdl.handle.net/20.500.12110/paper_00223646_v36_n4_p714_Leonardi
work_keys_str_mv AT leonardipi finestructureofbiflagellatezoosporesofasterococcussuperbustetrasporaleschlorophyceaeincludingtheabsoluteconfigurationoftheflagellarapparatus
AT rodriguezmc finestructureofbiflagellatezoosporesofasterococcussuperbustetrasporaleschlorophyceaeincludingtheabsoluteconfigurationoftheflagellarapparatus
AT caceresej finestructureofbiflagellatezoosporesofasterococcussuperbustetrasporaleschlorophyceaeincludingtheabsoluteconfigurationoftheflagellarapparatus
_version_ 1782024677372198912

Ejemplares similares