Seedling anatomy of three species of Cupressus (Cupressaceae)
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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1999
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Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p199_DeMagistris |
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paperaa:paper_00116793_v37_n3-4_p199_DeMagistris2023-06-12T16:41:29Z Seedling anatomy of three species of Cupressus (Cupressaceae) Darwiniana 1999;37(3-4):199-207 De Magistris, A.A. Castro, M.A. Anatomy Cultivated trees Cupressus Seedling Transition zone 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. 1999 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p199_DeMagistris |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
language |
Inglés |
orig_language_str_mv |
eng |
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 |
work_keys_str_mv |
AT demagistrisaa seedlinganatomyofthreespeciesofcupressuscupressaceae AT castroma seedlinganatomyofthreespeciesofcupressuscupressaceae |
_version_ |
1769810369267630080 |