Epicormic Shoots in a Permian Gymnosperm from Antarctica
International audience Two anatomically preserved gymnosperm trunks with clusters of epicormic shoots are described from the Late Permian of Antarctica. The best‐preserved trunk is 14 cm long. It has a small circular parenchymatous pith and 9 cm of secondary xylem that contains at least 50 growth ri...
Published in: | International Journal of Plant Sciences |
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ftccsdartic:oai:HAL:hal-03037499v1 2023-05-15T13:34:32+02:00 Epicormic Shoots in a Permian Gymnosperm from Antarctica Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. Department of Ecology and Evolutionary Biology University of Kansas Lawrence (KU) 2010 https://hal.umontpellier.fr/hal-03037499 https://hal.umontpellier.fr/hal-03037499/document https://hal.umontpellier.fr/hal-03037499/file/2010_ALD%20ELT%20TNT_IJPS.pdf https://doi.org/10.1086/654849 en eng HAL CCSD University of Chicago Press info:eu-repo/semantics/altIdentifier/doi/10.1086/654849 hal-03037499 https://hal.umontpellier.fr/hal-03037499 https://hal.umontpellier.fr/hal-03037499/document https://hal.umontpellier.fr/hal-03037499/file/2010_ALD%20ELT%20TNT_IJPS.pdf doi:10.1086/654849 info:eu-repo/semantics/OpenAccess ISSN: 1058-5893 International Journal of Plant Sciences https://hal.umontpellier.fr/hal-03037499 International Journal of Plant Sciences, University of Chicago Press, 2010, 171 (7), pp.772-782. ⟨10.1086/654849⟩ sprouting gymnosperm Late Permian Antarctica Gondwana [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1086/654849 2021-10-16T22:23:00Z International audience Two anatomically preserved gymnosperm trunks with clusters of epicormic shoots are described from the Late Permian of Antarctica. The best‐preserved trunk is 14 cm long. It has a small circular parenchymatous pith and 9 cm of secondary xylem that contains at least 50 growth rings. The second specimen is slightly smaller (11×8 cm) and has 20 growth rings. Both specimens have pycnoxylic wood and produced more than 50 small shoots in a delimited zone on the surface of the trunk. Shoots have a wide parenchymatous pith that may be solid to septate with endarch primary xylem forming 8–10 sympodia and a small amount of secondary xylem similar to that of the parent trunk. The shoots branch and increase in number toward the outside of the trunk. Evidence based on anatomical comparisons and association at the site indicates that the specimens probably represent trunks of some glossopterid, the dominant group of seed ferns during the Permian in Gondwana. This is the first report of clusters of epicormic shoots in a Paleozoic gymnosperm. The ability to produce a large number of young shoots that were capable of developing into new branches indicates that these high‐latitude trees possessed an architectural plasticity that allowed them to respond quickly to short‐ or long‐term environmental stress. Article in Journal/Newspaper Antarc* Antarctica Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) International Journal of Plant Sciences 171 7 772 782 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
sprouting gymnosperm Late Permian Antarctica Gondwana [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy |
spellingShingle |
sprouting gymnosperm Late Permian Antarctica Gondwana [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. Epicormic Shoots in a Permian Gymnosperm from Antarctica |
topic_facet |
sprouting gymnosperm Late Permian Antarctica Gondwana [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy |
description |
International audience Two anatomically preserved gymnosperm trunks with clusters of epicormic shoots are described from the Late Permian of Antarctica. The best‐preserved trunk is 14 cm long. It has a small circular parenchymatous pith and 9 cm of secondary xylem that contains at least 50 growth rings. The second specimen is slightly smaller (11×8 cm) and has 20 growth rings. Both specimens have pycnoxylic wood and produced more than 50 small shoots in a delimited zone on the surface of the trunk. Shoots have a wide parenchymatous pith that may be solid to septate with endarch primary xylem forming 8–10 sympodia and a small amount of secondary xylem similar to that of the parent trunk. The shoots branch and increase in number toward the outside of the trunk. Evidence based on anatomical comparisons and association at the site indicates that the specimens probably represent trunks of some glossopterid, the dominant group of seed ferns during the Permian in Gondwana. This is the first report of clusters of epicormic shoots in a Paleozoic gymnosperm. The ability to produce a large number of young shoots that were capable of developing into new branches indicates that these high‐latitude trees possessed an architectural plasticity that allowed them to respond quickly to short‐ or long‐term environmental stress. |
author2 |
Department of Ecology and Evolutionary Biology University of Kansas Lawrence (KU) |
format |
Article in Journal/Newspaper |
author |
Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. |
author_facet |
Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. |
author_sort |
Decombeix, Anne-Laure |
title |
Epicormic Shoots in a Permian Gymnosperm from Antarctica |
title_short |
Epicormic Shoots in a Permian Gymnosperm from Antarctica |
title_full |
Epicormic Shoots in a Permian Gymnosperm from Antarctica |
title_fullStr |
Epicormic Shoots in a Permian Gymnosperm from Antarctica |
title_full_unstemmed |
Epicormic Shoots in a Permian Gymnosperm from Antarctica |
title_sort |
epicormic shoots in a permian gymnosperm from antarctica |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.umontpellier.fr/hal-03037499 https://hal.umontpellier.fr/hal-03037499/document https://hal.umontpellier.fr/hal-03037499/file/2010_ALD%20ELT%20TNT_IJPS.pdf https://doi.org/10.1086/654849 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 1058-5893 International Journal of Plant Sciences https://hal.umontpellier.fr/hal-03037499 International Journal of Plant Sciences, University of Chicago Press, 2010, 171 (7), pp.772-782. ⟨10.1086/654849⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1086/654849 hal-03037499 https://hal.umontpellier.fr/hal-03037499 https://hal.umontpellier.fr/hal-03037499/document https://hal.umontpellier.fr/hal-03037499/file/2010_ALD%20ELT%20TNT_IJPS.pdf doi:10.1086/654849 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1086/654849 |
container_title |
International Journal of Plant Sciences |
container_volume |
171 |
container_issue |
7 |
container_start_page |
772 |
op_container_end_page |
782 |
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1766054042995261440 |