Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia
International audience The size (length and diameter) and number of leaf primordia of winter buds of Nothofagus antarctica (G. Forster) Oerst. shrubs were compared with the size and number of leaves of shoots derived from buds in equivalent positions. Buds developed in two successive years were comp...
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ftunivnantes:oai:HAL:hal-03771174v1 2023-05-15T13:37:20+02:00 Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia Puntieri, Javier G. Stecconi, M., Marina Barthélémy, Daniel Universidad Nacional del Comahue Neuquén (UNCOMA) BotAnique et BioinforMatique de l'Architecture des Plantes (UMR AMAP) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Recherche pour le Développement (IRD France-Ouest )-Centre National de la Recherche Scientifique (CNRS) 2002 https://hal.inrae.fr/hal-03771174 https://doi.org/10.1093/aob/mcf108 en eng HAL CCSD Oxford University Press (OUP) info:eu-repo/semantics/altIdentifier/doi/10.1093/aob/mcf108 hal-03771174 https://hal.inrae.fr/hal-03771174 doi:10.1093/aob/mcf108 ISSN: 0305-7364 EISSN: 1095-8290 Annals of Botany https://hal.inrae.fr/hal-03771174 Annals of Botany, Oxford University Press (OUP), 2002, 89 (6), pp.665-673. ⟨10.1093/aob/mcf108⟩ Bud structure preformation shoot growth neoformation branching leaf primordia Nothofagus antarctica ñire [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2002 ftunivnantes https://doi.org/10.1093/aob/mcf108 2022-09-13T22:50:07Z International audience The size (length and diameter) and number of leaf primordia of winter buds of Nothofagus antarctica (G. Forster) Oerst. shrubs were compared with the size and number of leaves of shoots derived from buds in equivalent positions. Buds developed in two successive years were compared in terms of size and number of leaf primordia. Bud size and the number of leaf primordia per bud were greater for distal than for proximally positioned buds. Shoots that developed in the five positions closest to the distal end of their parent shoots had significantly more leaves than more proximally positioned shoots of the same parent shoots. The positive relationship between the size of a shoot and that of its parent shoot was stronger for proximal than for distal positions on the parent shoots. For each bud position on the parent shoots there were differences in the number of leaf primordia per bud between consecutive years. The correlations between the number of leaf primordia per bud and bud size, bud position and parent shoot size varied between years. Only shoots produced close to the distal end of a parent shoot developed neoformed leaves; more proximal sibling shoots consisted entirely of preformed leaves. Leaf neoformation, a process usually linked with high shoot vigour in woody plants, seems to be widespread among the relatively small shoots developed in N. antarctica shrubs, which may relate to the species’ opportunistic response to disturbance Article in Journal/Newspaper Antarc* Antarctica Université de Nantes: HAL-UNIV-NANTES Patagonia Annals of Botany 89 6 665 673 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Bud structure preformation shoot growth neoformation branching leaf primordia Nothofagus antarctica ñire [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Bud structure preformation shoot growth neoformation branching leaf primordia Nothofagus antarctica ñire [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDE.BE]Environmental Sciences/Biodiversity and Ecology Puntieri, Javier G. Stecconi, M., Marina Barthélémy, Daniel Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia |
topic_facet |
Bud structure preformation shoot growth neoformation branching leaf primordia Nothofagus antarctica ñire [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience The size (length and diameter) and number of leaf primordia of winter buds of Nothofagus antarctica (G. Forster) Oerst. shrubs were compared with the size and number of leaves of shoots derived from buds in equivalent positions. Buds developed in two successive years were compared in terms of size and number of leaf primordia. Bud size and the number of leaf primordia per bud were greater for distal than for proximally positioned buds. Shoots that developed in the five positions closest to the distal end of their parent shoots had significantly more leaves than more proximally positioned shoots of the same parent shoots. The positive relationship between the size of a shoot and that of its parent shoot was stronger for proximal than for distal positions on the parent shoots. For each bud position on the parent shoots there were differences in the number of leaf primordia per bud between consecutive years. The correlations between the number of leaf primordia per bud and bud size, bud position and parent shoot size varied between years. Only shoots produced close to the distal end of a parent shoot developed neoformed leaves; more proximal sibling shoots consisted entirely of preformed leaves. Leaf neoformation, a process usually linked with high shoot vigour in woody plants, seems to be widespread among the relatively small shoots developed in N. antarctica shrubs, which may relate to the species’ opportunistic response to disturbance |
author2 |
Universidad Nacional del Comahue Neuquén (UNCOMA) BotAnique et BioinforMatique de l'Architecture des Plantes (UMR AMAP) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Recherche pour le Développement (IRD France-Ouest )-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Puntieri, Javier G. Stecconi, M., Marina Barthélémy, Daniel |
author_facet |
Puntieri, Javier G. Stecconi, M., Marina Barthélémy, Daniel |
author_sort |
Puntieri, Javier G. |
title |
Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia |
title_short |
Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia |
title_full |
Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia |
title_fullStr |
Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia |
title_full_unstemmed |
Preformation and Neoformation in Shoots of Nothofagus antarctica (G. Forster) Oerst. (Nothofagaceae) Shrubs from Northern Patagonia |
title_sort |
preformation and neoformation in shoots of nothofagus antarctica (g. forster) oerst. (nothofagaceae) shrubs from northern patagonia |
publisher |
HAL CCSD |
publishDate |
2002 |
url |
https://hal.inrae.fr/hal-03771174 https://doi.org/10.1093/aob/mcf108 |
geographic |
Patagonia |
geographic_facet |
Patagonia |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 0305-7364 EISSN: 1095-8290 Annals of Botany https://hal.inrae.fr/hal-03771174 Annals of Botany, Oxford University Press (OUP), 2002, 89 (6), pp.665-673. ⟨10.1093/aob/mcf108⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/aob/mcf108 hal-03771174 https://hal.inrae.fr/hal-03771174 doi:10.1093/aob/mcf108 |
op_doi |
https://doi.org/10.1093/aob/mcf108 |
container_title |
Annals of Botany |
container_volume |
89 |
container_issue |
6 |
container_start_page |
665 |
op_container_end_page |
673 |
_version_ |
1766090420353236992 |