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Abstract:

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.

Registro:

Documento: Artículo
Título:Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)
Autor:Galati, B.G.; Gotelli, M.M.; Rosenfeldt, S.; Lattar, E.C.; Tourn, G.M.
Filiación:Cátedra de Botánica General, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, Buenos Aires, C1417DSE, Argentina
CONICET, Argentina
Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Instituto de Botánica del Nordeste (UNNE-CONICET), C.C. 209, Corrientes, W3400CBL, Argentina
Sede Punilla, Facultad de Agronomía, Universidad de Buenos Aires, Huerta Grande, Córdoba, Argentina
Palabras clave:ANA grade; Cabomba; Chloroplast ultrastructure; Leaf anatomy; anatomy; aquatic plant; chloroplast; dimorphism; leaf; submerged vegetation; ultrastructure; Cabomba; Cabomba caroliniana; Cabombaceae
Año:2015
Volumen:121
Página de inicio:46
Página de fin:51
DOI: http://dx.doi.org/10.1016/j.aquabot.2014.11.002
Título revista:Aquatic Botany
Título revista abreviado:Aquatic Bot.
ISSN:03043770
CODEN:AQBOD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043770_v121_n_p46_Galati

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Citas:

---------- APA ----------
Galati, B.G., Gotelli, M.M., Rosenfeldt, S., Lattar, E.C. & Tourn, G.M. (2015) . Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae). Aquatic Botany, 121, 46-51.
http://dx.doi.org/10.1016/j.aquabot.2014.11.002
---------- CHICAGO ----------
Galati, B.G., Gotelli, M.M., Rosenfeldt, S., Lattar, E.C., Tourn, G.M. "Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)" . Aquatic Botany 121 (2015) : 46-51.
http://dx.doi.org/10.1016/j.aquabot.2014.11.002
---------- MLA ----------
Galati, B.G., Gotelli, M.M., Rosenfeldt, S., Lattar, E.C., Tourn, G.M. "Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae)" . Aquatic Botany, vol. 121, 2015, pp. 46-51.
http://dx.doi.org/10.1016/j.aquabot.2014.11.002
---------- VANCOUVER ----------
Galati, B.G., Gotelli, M.M., Rosenfeldt, S., Lattar, E.C., Tourn, G.M. Chloroplast dimorphism in leaves of Cabomba caroliniana (Cabombaceae). Aquatic Bot. 2015;121:46-51.
http://dx.doi.org/10.1016/j.aquabot.2014.11.002