Do the structures of macaw palm fruit protect seeds in a fire-prone environment?
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://dx.doi.org/10.1590/0102-33062016abb0077 http://www.locus.ufv.br/handle/123456789/25326 |
Resumo: | Fire is an abiotic disturbance that regulates vegetation structure and biodiversity. Some plant species have adapted to fire prone environments by evolving protective structures. Acrocomia aculeata (macaw palm) is widely distributed throughout tropical America, and is found in environments continuously influenced by anthropogenic fire. We aimed to determine whether the fruit characteristics of A. aculeataenable seeds to resist the eff ects of fire and also the consequent effects of fire on fruit biometric traits and embryo viability. After a fire event in a region of pasture- forest transition, we marked 30 individuals of A. aculeata. Th e trees were separated by UPGMA analysis into 5 groups according to fire exposure, ranging from trees with no exposure to trees with fruit completely exposed to fire. Fruit exposure to high temperatures led to lower values in fruit fresh weight, length, density, and processable mass.Fire had no signifi cant effect on seed biometric variables, because of the structures of the fruit, including its lignifi ed endocarp and its insulating and mucilaginous mesocarp. These structures helped to maintain the embryos viability by preventing oxidative damage. In conclusion, the fruit structure of the macaw palm may facilitate seed persistence, even when subject to increasingly frequent fire events. |
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Bicalho, Elisa MontezeRosa, Bruno LuanSouza, Anna Elisa deRios, Camilla OliveiraPereira, Eduardo Gusmão2019-05-21T13:16:30Z2019-05-21T13:16:30Z2016-101677-941Xhttp://dx.doi.org/10.1590/0102-33062016abb0077http://www.locus.ufv.br/handle/123456789/25326Fire is an abiotic disturbance that regulates vegetation structure and biodiversity. Some plant species have adapted to fire prone environments by evolving protective structures. Acrocomia aculeata (macaw palm) is widely distributed throughout tropical America, and is found in environments continuously influenced by anthropogenic fire. We aimed to determine whether the fruit characteristics of A. aculeataenable seeds to resist the eff ects of fire and also the consequent effects of fire on fruit biometric traits and embryo viability. After a fire event in a region of pasture- forest transition, we marked 30 individuals of A. aculeata. Th e trees were separated by UPGMA analysis into 5 groups according to fire exposure, ranging from trees with no exposure to trees with fruit completely exposed to fire. Fruit exposure to high temperatures led to lower values in fruit fresh weight, length, density, and processable mass.Fire had no signifi cant effect on seed biometric variables, because of the structures of the fruit, including its lignifi ed endocarp and its insulating and mucilaginous mesocarp. These structures helped to maintain the embryos viability by preventing oxidative damage. In conclusion, the fruit structure of the macaw palm may facilitate seed persistence, even when subject to increasingly frequent fire events.engActa Botanica Brasilicav. 30, n. 4, p. 540-548, out./ dez. 2016Acrocomia aculeataBiometryBurningClimate changeSeed viabilityDo the structures of macaw palm fruit protect seeds in a fire-prone environment?info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdfartigoapplication/pdf1760015https://locus.ufv.br//bitstream/123456789/25326/1/artigo.pdf12e48e9701790b6395fd132032cdd703MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/25326/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/253262019-05-21 10:36:06.595oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452019-05-21T13:36:06LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? |
title |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? |
spellingShingle |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? Bicalho, Elisa Monteze Acrocomia aculeata Biometry Burning Climate change Seed viability |
title_short |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? |
title_full |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? |
title_fullStr |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? |
title_full_unstemmed |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? |
title_sort |
Do the structures of macaw palm fruit protect seeds in a fire-prone environment? |
author |
Bicalho, Elisa Monteze |
author_facet |
Bicalho, Elisa Monteze Rosa, Bruno Luan Souza, Anna Elisa de Rios, Camilla Oliveira Pereira, Eduardo Gusmão |
author_role |
author |
author2 |
Rosa, Bruno Luan Souza, Anna Elisa de Rios, Camilla Oliveira Pereira, Eduardo Gusmão |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bicalho, Elisa Monteze Rosa, Bruno Luan Souza, Anna Elisa de Rios, Camilla Oliveira Pereira, Eduardo Gusmão |
dc.subject.pt-BR.fl_str_mv |
Acrocomia aculeata Biometry Burning Climate change Seed viability |
topic |
Acrocomia aculeata Biometry Burning Climate change Seed viability |
description |
Fire is an abiotic disturbance that regulates vegetation structure and biodiversity. Some plant species have adapted to fire prone environments by evolving protective structures. Acrocomia aculeata (macaw palm) is widely distributed throughout tropical America, and is found in environments continuously influenced by anthropogenic fire. We aimed to determine whether the fruit characteristics of A. aculeataenable seeds to resist the eff ects of fire and also the consequent effects of fire on fruit biometric traits and embryo viability. After a fire event in a region of pasture- forest transition, we marked 30 individuals of A. aculeata. Th e trees were separated by UPGMA analysis into 5 groups according to fire exposure, ranging from trees with no exposure to trees with fruit completely exposed to fire. Fruit exposure to high temperatures led to lower values in fruit fresh weight, length, density, and processable mass.Fire had no signifi cant effect on seed biometric variables, because of the structures of the fruit, including its lignifi ed endocarp and its insulating and mucilaginous mesocarp. These structures helped to maintain the embryos viability by preventing oxidative damage. In conclusion, the fruit structure of the macaw palm may facilitate seed persistence, even when subject to increasingly frequent fire events. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-10 |
dc.date.accessioned.fl_str_mv |
2019-05-21T13:16:30Z |
dc.date.available.fl_str_mv |
2019-05-21T13:16:30Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/0102-33062016abb0077 http://www.locus.ufv.br/handle/123456789/25326 |
dc.identifier.issn.none.fl_str_mv |
1677-941X |
identifier_str_mv |
1677-941X |
url |
http://dx.doi.org/10.1590/0102-33062016abb0077 http://www.locus.ufv.br/handle/123456789/25326 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
v. 30, n. 4, p. 540-548, out./ dez. 2016 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Acta Botanica Brasilica |
publisher.none.fl_str_mv |
Acta Botanica Brasilica |
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reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
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LOCUS Repositório Institucional da UFV |
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