Seedling anatomy of three species of Cupressus (Cupressaceae)

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Structural anatomy of seedlings of Cupressus lusitanica Mill., C. macrocarpa Hartw. and C. sempervirens L. (Cypress) cultivated in Argentina was studied. Seedlings of these species were fixed at eigth different stages of the germination process. Anatomical features of root, hypocotyl, cotyledonary n...

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Autores principales: De Magistris, A.A., Castro, M.A.
Formato: Artículo publishedVersion
Publicado: 1999
Materias:
Anatomy
Cultivated trees
Cupressus
Seedling
Transition zone
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p199_DeMagistris
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00116793_v37_n3-4_p199_DeMagistris_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
id I28-R145-paper_00116793_v37_n3-4_p199_DeMagistris_oai
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spelling I28-R145-paper_00116793_v37_n3-4_p199_DeMagistris_oai2024-08-16 De Magistris, A.A. Castro, M.A. 1999 Structural anatomy of seedlings of Cupressus lusitanica Mill., C. macrocarpa Hartw. and C. sempervirens L. (Cypress) cultivated in Argentina was studied. Seedlings of these species were fixed at eigth different stages of the germination process. Anatomical features of root, hypocotyl, cotyledonary node, cotyledons and epicotyl were described. The root-hypocotyl-cotyledon vascular transition was analized. In the root and in most of the hypocotyl length, the protoxylem exhibits exarch position. At the cotyledonary node the metaxylem differentiates gradual- and laterally divergent from the protoxylem. In sections of the upper zone of the hypocotyl, close to the cotyledonary node, the protoxylem shows an endarch position. In the epicotyl, the undifferentiated procambium alternates with the cotyledonary vascular bundles. The number of xylematic poles is equal to the number of cotyledons in thr three species. Fil:De Magistris, A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Castro, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p199_DeMagistris info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Darwiniana 1999;37(3-4):199-207 Anatomy Cultivated trees Cupressus Seedling Transition zone Seedling anatomy of three species of Cupressus (Cupressaceae) info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00116793_v37_n3-4_p199_DeMagistris_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic Anatomy
Cultivated trees
Cupressus
Seedling
Transition zone
spellingShingle Anatomy
Cultivated trees
Cupressus
Seedling
Transition zone
De Magistris, A.A.
Castro, M.A.
Seedling anatomy of three species of Cupressus (Cupressaceae)
topic_facet Anatomy
Cultivated trees
Cupressus
Seedling
Transition zone
description Structural anatomy of seedlings of Cupressus lusitanica Mill., C. macrocarpa Hartw. and C. sempervirens L. (Cypress) cultivated in Argentina was studied. Seedlings of these species were fixed at eigth different stages of the germination process. Anatomical features of root, hypocotyl, cotyledonary node, cotyledons and epicotyl were described. The root-hypocotyl-cotyledon vascular transition was analized. In the root and in most of the hypocotyl length, the protoxylem exhibits exarch position. At the cotyledonary node the metaxylem differentiates gradual- and laterally divergent from the protoxylem. In sections of the upper zone of the hypocotyl, close to the cotyledonary node, the protoxylem shows an endarch position. In the epicotyl, the undifferentiated procambium alternates with the cotyledonary vascular bundles. The number of xylematic poles is equal to the number of cotyledons in thr three species.
format Artículo
Artículo
publishedVersion
author De Magistris, A.A.
Castro, M.A.
author_facet De Magistris, A.A.
Castro, M.A.
author_sort De Magistris, A.A.
title Seedling anatomy of three species of Cupressus (Cupressaceae)
title_short Seedling anatomy of three species of Cupressus (Cupressaceae)
title_full Seedling anatomy of three species of Cupressus (Cupressaceae)
title_fullStr Seedling anatomy of three species of Cupressus (Cupressaceae)
title_full_unstemmed Seedling anatomy of three species of Cupressus (Cupressaceae)
title_sort seedling anatomy of three species of cupressus (cupressaceae)
publishDate 1999
url http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p199_DeMagistris
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00116793_v37_n3-4_p199_DeMagistris_oai
work_keys_str_mv AT demagistrisaa seedlinganatomyofthreespeciesofcupressuscupressaceae
AT castroma seedlinganatomyofthreespeciesofcupressuscupressaceae
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