Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta)

The euglenoid genus Monomorphina was defined by Mereschowsky in 1877 to include rigid euglenoids that were pyriform in lateral view, had a hyaline spine at the posterior end, and one to few parietal chloroplasts typically without pyrenoids. The genus included taxa previously assigned to Phacus Dujar...

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Detalles Bibliográficos
Autores principales: Nudelman, M.A., Leonardi, P.I., Conforti, V., Farmer, M.A., Triemer, R.E.
Formato: JOUR
Materias:
Chloroplast
Euglenida
Euglenophyta
Euglenozoa
Monomorphina
Phacus
Pyrenoid
Taxonomy
Ultrastructure
scanning electron microscopy
taxonomy
ultrastructure
Dujardin
Euglena
Pyrus communis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00223646_v42_n1_p194_Nudelman
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00223646_v42_n1_p194_Nudelman
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spelling todo:paper_00223646_v42_n1_p194_Nudelman2023-10-03T14:32:01Z Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta) Nudelman, M.A. Leonardi, P.I. Conforti, V. Farmer, M.A. Triemer, R.E. Chloroplast Euglenida Euglenophyta Euglenozoa Monomorphina Phacus Pyrenoid Taxonomy Ultrastructure scanning electron microscopy taxonomy ultrastructure Dujardin Euglena Euglenida Euglenozoa Phacus Pyrus communis The euglenoid genus Monomorphina was defined by Mereschowsky in 1877 to include rigid euglenoids that were pyriform in lateral view, had a hyaline spine at the posterior end, and one to few parietal chloroplasts typically without pyrenoids. The genus included taxa previously assigned to Phacus Dujardin or Euglena Ehrenberg. The general structure of Monomorphina aenigmatica comb. nov. is described on the basis of light microscopy and scanning and transmission electron microscopy. Cells were pear-shaped in lateral view, rounded at the anterior end and narrowed posteriorly, tapering into a long twisted tail. The pellicle had helically arranged strips spiralled in a counter-clockwise fashion. A distinctive feature of M. aenigmatica was the presence of a single chloroplast bearing a pyrenoid, capped with a paramylon plate. The large parietal chloroplast extended along most of the cell with three prominent cup-shaped paramylon caps on the external face. In transverse section, the chloroplast appeared C-shaped. Because of the ambiguity surrounding the original descriptions used to diagnose this taxon, we designated an epitype for Monomorphina aenigmatica. Morphological features of this species were compared to other members of the genus. © 2005 Phycological Society of America. Fil:Nudelman, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Conforti, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223646_v42_n1_p194_Nudelman
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Chloroplast
Euglenida
Euglenophyta
Euglenozoa
Monomorphina
Phacus
Pyrenoid
Taxonomy
Ultrastructure
scanning electron microscopy
taxonomy
ultrastructure
Dujardin
Euglena
Euglenida
Euglenozoa
Phacus
Pyrus communis
spellingShingle Chloroplast
Euglenida
Euglenophyta
Euglenozoa
Monomorphina
Phacus
Pyrenoid
Taxonomy
Ultrastructure
scanning electron microscopy
taxonomy
ultrastructure
Dujardin
Euglena
Euglenida
Euglenozoa
Phacus
Pyrus communis
Nudelman, M.A.
Leonardi, P.I.
Conforti, V.
Farmer, M.A.
Triemer, R.E.
Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta)
topic_facet Chloroplast
Euglenida
Euglenophyta
Euglenozoa
Monomorphina
Phacus
Pyrenoid
Taxonomy
Ultrastructure
scanning electron microscopy
taxonomy
ultrastructure
Dujardin
Euglena
Euglenida
Euglenozoa
Phacus
Pyrus communis
description The euglenoid genus Monomorphina was defined by Mereschowsky in 1877 to include rigid euglenoids that were pyriform in lateral view, had a hyaline spine at the posterior end, and one to few parietal chloroplasts typically without pyrenoids. The genus included taxa previously assigned to Phacus Dujardin or Euglena Ehrenberg. The general structure of Monomorphina aenigmatica comb. nov. is described on the basis of light microscopy and scanning and transmission electron microscopy. Cells were pear-shaped in lateral view, rounded at the anterior end and narrowed posteriorly, tapering into a long twisted tail. The pellicle had helically arranged strips spiralled in a counter-clockwise fashion. A distinctive feature of M. aenigmatica was the presence of a single chloroplast bearing a pyrenoid, capped with a paramylon plate. The large parietal chloroplast extended along most of the cell with three prominent cup-shaped paramylon caps on the external face. In transverse section, the chloroplast appeared C-shaped. Because of the ambiguity surrounding the original descriptions used to diagnose this taxon, we designated an epitype for Monomorphina aenigmatica. Morphological features of this species were compared to other members of the genus. © 2005 Phycological Society of America.
format JOUR
author Nudelman, M.A.
Leonardi, P.I.
Conforti, V.
Farmer, M.A.
Triemer, R.E.
author_facet Nudelman, M.A.
Leonardi, P.I.
Conforti, V.
Farmer, M.A.
Triemer, R.E.
author_sort Nudelman, M.A.
title Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta)
title_short Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta)
title_full Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta)
title_fullStr Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta)
title_full_unstemmed Fine structure and taxonomy of Monomorphina aenigmatica comb. nov. (Euglenophyta)
title_sort fine structure and taxonomy of monomorphina aenigmatica comb. nov. (euglenophyta)
url http://hdl.handle.net/20.500.12110/paper_00223646_v42_n1_p194_Nudelman
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