Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content

Ultrastructural changes induced by exposure to excess of organic matter were studied in Lepocinclis acus (ex Euglena acus). The cells isolated from the Matanza River, Buenos Aires, Argentina, were grown in soil water medium (SWM). When transferred to medium enriched with Bacteriological Peptone OXOI...

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Detalles Bibliográficos
Autores principales:	Conforti, V.T., Ruiz, L.B., Leonardi, P.I.
Formato:	JOUR
Materias:	Euglenoids Lepocinclis acus Microalgae Organic matter Ultrastructure
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_2296701X_v5_nNOV_p_Conforti
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_2296701X_v5_nNOV_p_Conforti
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spelling	todo:paper_2296701X_v5_nNOV_p_Conforti2023-10-03T16:40:48Z Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content Conforti, V.T. Ruiz, L.B. Leonardi, P.I. Euglenoids Lepocinclis acus Microalgae Organic matter Ultrastructure Ultrastructural changes induced by exposure to excess of organic matter were studied in Lepocinclis acus (ex Euglena acus). The cells isolated from the Matanza River, Buenos Aires, Argentina, were grown in soil water medium (SWM). When transferred to medium enriched with Bacteriological Peptone OXOID®, marked body deformation and a significant shortening and widening of the cells was observed. These changes were unexpected in a species with quite rigid cells, a condition previously shown in studies of the pellicle fine structure. Transmission electron microscopy observations suggest that cellular deformation might be facilitated by an increase in strip number, whereas in the original strips normal ultrastructure was maintained. An increase in number and volume of paramylon grains and vacuoles, as well as the presence of membrane whorls in vacuoles was observed. The fine structure of organisms grown in medium with and without organic matter enrichment was compared, and the systematic and ecological importance of morphological changes triggered by cell deformation was discussed. © 2017 Conforti, Ruiz and Leonardi. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_2296701X_v5_nNOV_p_Conforti
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Euglenoids Lepocinclis acus Microalgae Organic matter Ultrastructure
spellingShingle	Euglenoids Lepocinclis acus Microalgae Organic matter Ultrastructure Conforti, V.T. Ruiz, L.B. Leonardi, P.I. Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content
topic_facet	Euglenoids Lepocinclis acus Microalgae Organic matter Ultrastructure
description	Ultrastructural changes induced by exposure to excess of organic matter were studied in Lepocinclis acus (ex Euglena acus). The cells isolated from the Matanza River, Buenos Aires, Argentina, were grown in soil water medium (SWM). When transferred to medium enriched with Bacteriological Peptone OXOID®, marked body deformation and a significant shortening and widening of the cells was observed. These changes were unexpected in a species with quite rigid cells, a condition previously shown in studies of the pellicle fine structure. Transmission electron microscopy observations suggest that cellular deformation might be facilitated by an increase in strip number, whereas in the original strips normal ultrastructure was maintained. An increase in number and volume of paramylon grains and vacuoles, as well as the presence of membrane whorls in vacuoles was observed. The fine structure of organisms grown in medium with and without organic matter enrichment was compared, and the systematic and ecological importance of morphological changes triggered by cell deformation was discussed. © 2017 Conforti, Ruiz and Leonardi.
format	JOUR
author	Conforti, V.T. Ruiz, L.B. Leonardi, P.I.
author_facet	Conforti, V.T. Ruiz, L.B. Leonardi, P.I.
author_sort	Conforti, V.T.
title	Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content
title_short	Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content
title_full	Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content
title_fullStr	Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content
title_full_unstemmed	Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content
title_sort	ultrastructural alterations in lepocinclis acus (euglenophyta) induced by medium with high organic matter content
url	http://hdl.handle.net/20.500.12110/paper_2296701X_v5_nNOV_p_Conforti
work_keys_str_mv	AT confortivt ultrastructuralalterationsinlepocinclisacuseuglenophytainducedbymediumwithhighorganicmattercontent AT ruizlb ultrastructuralalterationsinlepocinclisacuseuglenophytainducedbymediumwithhighorganicmattercontent AT leonardipi ultrastructuralalterationsinlepocinclisacuseuglenophytainducedbymediumwithhighorganicmattercontent
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Ultrastructural alterations in Lepocinclis acus (Euglenophyta) induced by medium with high organic matter content

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