Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)

Cabomba Aublet is useful as a genetic model of angiosperm evolution. Previous anatomical studies and preliminary light microscopic observations on C. caroliniana A Gray revealed the presence of dimorphic chloroplasts in both types of leaves, floating and submerged leaves. Leaf anatomy and chloroplas...

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Detalles Bibliográficos
Autores principales: Galati, B.G., Gotelli, M.M., Rosenfeldt, S., Lattar, E.C., Tourn, G.M.
Formato: JOUR
Materias:
ANA grade
Cabomba
Chloroplast ultrastructure
Leaf anatomy
anatomy
aquatic plant
chloroplast
dimorphism
leaf
submerged vegetation
ultrastructure
Cabomba caroliniana
Cabombaceae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03043770_v121_n_p46_Galati
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03043770_v121_n_p46_Galati
record_format dspace
spelling todo:paper_03043770_v121_n_p46_Galati2023-10-03T15:20:01Z Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae) Galati, B.G. Gotelli, M.M. Rosenfeldt, S. Lattar, E.C. Tourn, G.M. ANA grade Cabomba Chloroplast ultrastructure Leaf anatomy anatomy aquatic plant chloroplast dimorphism leaf submerged vegetation ultrastructure Cabomba Cabomba caroliniana Cabombaceae Cabomba Aublet is useful as a genetic model of angiosperm evolution. Previous anatomical studies and preliminary light microscopic observations on C. caroliniana A Gray revealed the presence of dimorphic chloroplasts in both types of leaves, floating and submerged leaves. Leaf anatomy and chloroplasts ultrastructure were analyzed and compared. The chloroplast ultrastructure of the mesophyll and epidermal cells is different. Mesophyll chloroplasts have several plastoglobuli, large starch grains and grana formed by an average of 29 thylakoids. Epidermal chloroplasts are smaller, have grana formed by an average of 9 thylakoids and starch grains are occasional and smaller. A statistical analysis (.t-test) was made to determine if differences between chloroplasts are significant. The ultrastructure of the epidermis chloroplast is similar to the one of sun leaves chloroplasts and the ultrastructure of the mesophyll chloroplast is similar to the one of shade chloroplast observed in other species. © 2014 Elsevier B.V. Fil:Galati, B.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gotelli, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rosenfeldt, S. 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_03043770_v121_n_p46_Galati
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic ANA grade
Cabomba
Chloroplast ultrastructure
Leaf anatomy
anatomy
aquatic plant
chloroplast
dimorphism
leaf
submerged vegetation
ultrastructure
Cabomba
Cabomba caroliniana
Cabombaceae
spellingShingle ANA grade
Cabomba
Chloroplast ultrastructure
Leaf anatomy
anatomy
aquatic plant
chloroplast
dimorphism
leaf
submerged vegetation
ultrastructure
Cabomba
Cabomba caroliniana
Cabombaceae
Galati, B.G.
Gotelli, M.M.
Rosenfeldt, S.
Lattar, E.C.
Tourn, G.M.
Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)
topic_facet ANA grade
Cabomba
Chloroplast ultrastructure
Leaf anatomy
anatomy
aquatic plant
chloroplast
dimorphism
leaf
submerged vegetation
ultrastructure
Cabomba
Cabomba caroliniana
Cabombaceae
description Cabomba Aublet is useful as a genetic model of angiosperm evolution. Previous anatomical studies and preliminary light microscopic observations on C. caroliniana A Gray revealed the presence of dimorphic chloroplasts in both types of leaves, floating and submerged leaves. Leaf anatomy and chloroplasts ultrastructure were analyzed and compared. The chloroplast ultrastructure of the mesophyll and epidermal cells is different. Mesophyll chloroplasts have several plastoglobuli, large starch grains and grana formed by an average of 29 thylakoids. Epidermal chloroplasts are smaller, have grana formed by an average of 9 thylakoids and starch grains are occasional and smaller. A statistical analysis (.t-test) was made to determine if differences between chloroplasts are significant. The ultrastructure of the epidermis chloroplast is similar to the one of sun leaves chloroplasts and the ultrastructure of the mesophyll chloroplast is similar to the one of shade chloroplast observed in other species. © 2014 Elsevier B.V.
format JOUR
author Galati, B.G.
Gotelli, M.M.
Rosenfeldt, S.
Lattar, E.C.
Tourn, G.M.
author_facet Galati, B.G.
Gotelli, M.M.
Rosenfeldt, S.
Lattar, E.C.
Tourn, G.M.
author_sort Galati, B.G.
title Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)
title_short Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)
title_full Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)
title_fullStr Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)
title_full_unstemmed Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)
title_sort chloroplast dimorphism in leaves of cabomba caroliniana (cabombaceae)
url http://hdl.handle.net/20.500.12110/paper_03043770_v121_n_p46_Galati
work_keys_str_mv AT galatibg chloroplastdimorphisminleavesofcabombacarolinianacabombaceae
AT gotellimm chloroplastdimorphisminleavesofcabombacarolinianacabombaceae
AT rosenfeldts chloroplastdimorphisminleavesofcabombacarolinianacabombaceae
AT lattarec chloroplastdimorphisminleavesofcabombacarolinianacabombaceae
AT tourngm chloroplastdimorphisminleavesofcabombacarolinianacabombaceae
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