Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons)
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.aquabot.2020.103214 http://hdl.handle.net/11449/196920 |
Resumo: | Phenotypic plasticity is common in aquatic monocots, but is sometimes mistaken with heteroblasty. In Eriocaulaceae, aquatic and amphibious species may present interesting adaptive morphological features. However, Paepalanthus saxicola var. pilosus is unusual by having two leaf morphotypes and scapes that can be partially submerged or completely exposed. This taxon also presents an uncertain identity due to its incomplete morphological description. Here, we studied the morphology and anatomy of both leaf morphotypes and of scapes of P. saxicola var. pilosus to understand if the morphological differences in leaves correspond to phenotypic plasticity or heteroblasty; and the ecological and systematic significance of its leaves and scapes. Besides, we describe its morphology to evaluate its identity. The short curved leaves show supporting tissue and three vascular bundles, while the long filiform ones lack supporting tissue and have a single vascular bundle. All specimens share anatomical characteristics of scape. We raised this taxon to the species level, giving it a replacing name, Paepalanthus amphibius. We observed that P. amphibius is the first confirmed report of heterophylly in Eriocaulaceae. The anatomy of its short leaves and scapes reflects adaptations to a xeric environment, while the anatomy of the long leaves shows characteristics adapted to an aquatic habit. Possibly, such degree of plasticity is underreported in the family, so we stress the importance of seasonal studies to understand the morphology and taxonomy of the amphibious species. |
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Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons)HeterophyllyLeaf anatomyPaepalanthoideaePaepalanthus amphibiusPaepalanthus saxicolavar. pilosusPaepalanthus sect. ConodiscusPhenotypic plasticity is common in aquatic monocots, but is sometimes mistaken with heteroblasty. In Eriocaulaceae, aquatic and amphibious species may present interesting adaptive morphological features. However, Paepalanthus saxicola var. pilosus is unusual by having two leaf morphotypes and scapes that can be partially submerged or completely exposed. This taxon also presents an uncertain identity due to its incomplete morphological description. Here, we studied the morphology and anatomy of both leaf morphotypes and of scapes of P. saxicola var. pilosus to understand if the morphological differences in leaves correspond to phenotypic plasticity or heteroblasty; and the ecological and systematic significance of its leaves and scapes. Besides, we describe its morphology to evaluate its identity. The short curved leaves show supporting tissue and three vascular bundles, while the long filiform ones lack supporting tissue and have a single vascular bundle. All specimens share anatomical characteristics of scape. We raised this taxon to the species level, giving it a replacing name, Paepalanthus amphibius. We observed that P. amphibius is the first confirmed report of heterophylly in Eriocaulaceae. The anatomy of its short leaves and scapes reflects adaptations to a xeric environment, while the anatomy of the long leaves shows characteristics adapted to an aquatic habit. Possibly, such degree of plasticity is underreported in the family, so we stress the importance of seasonal studies to understand the morphology and taxonomy of the amphibious species.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Alexander von Humboldt FoundationFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Univ Estadual Paulista, Inst Biociencias Rio Claro, Programa Posgrad Ciencias Biol Biol Veget, Av 24-A 1515, BR-13506900 Rio Claro, SP, BrazilUniv Fed Rio de Janeiro, Dept Bot, Av Carlos Chagas Filho 373,Cidade Univ, BR-21941590 Rio De Janeiro, RJ, BrazilUniv Estadual Paulista, Inst Biociencias Rio Claro, Dept Bot, Av 24-A 1515, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Paulista, Inst Biociencias Rio Claro, Programa Posgrad Ciencias Biol Biol Veget, Av 24-A 1515, BR-13506900 Rio Claro, SP, BrazilUniv Estadual Paulista, Inst Biociencias Rio Claro, Dept Bot, Av 24-A 1515, BR-13506900 Rio Claro, SP, BrazilCNPq: 140014/2017-9CNPq: 470349/2013-1CNPq: 301832/2016-1CNPq: 309504/2018-0Alexander von Humboldt Foundation: BRA/1139098FAPERJ: E26/203.269/2016FAPERJ: E-26/202.708/2019Elsevier B.V.Universidade Estadual Paulista (Unesp)Universidade Federal do Rio de Janeiro (UFRJ)Silva, Arthur de Lima [UNESP]Trovo, MarceloCoan, Alessandra Ike [UNESP]2020-12-10T20:00:24Z2020-12-10T20:00:24Z2020-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10http://dx.doi.org/10.1016/j.aquabot.2020.103214Aquatic Botany. Amsterdam: Elsevier, v. 164, 10 p., 2020.0304-3770http://hdl.handle.net/11449/19692010.1016/j.aquabot.2020.103214WOS:000535951000001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquatic Botanyinfo:eu-repo/semantics/openAccess2021-10-23T10:11:12Zoai:repositorio.unesp.br:11449/196920Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:40:42.927055Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) |
title |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) |
spellingShingle |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) Silva, Arthur de Lima [UNESP] Heterophylly Leaf anatomy Paepalanthoideae Paepalanthus amphibius Paepalanthus saxicolavar. pilosus Paepalanthus sect. Conodiscus |
title_short |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) |
title_full |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) |
title_fullStr |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) |
title_full_unstemmed |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) |
title_sort |
Morphological and anatomical plasticity of a rare amphibious species of Eriocaulaceae (Poales, Monocotyledons) |
author |
Silva, Arthur de Lima [UNESP] |
author_facet |
Silva, Arthur de Lima [UNESP] Trovo, Marcelo Coan, Alessandra Ike [UNESP] |
author_role |
author |
author2 |
Trovo, Marcelo Coan, Alessandra Ike [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal do Rio de Janeiro (UFRJ) |
dc.contributor.author.fl_str_mv |
Silva, Arthur de Lima [UNESP] Trovo, Marcelo Coan, Alessandra Ike [UNESP] |
dc.subject.por.fl_str_mv |
Heterophylly Leaf anatomy Paepalanthoideae Paepalanthus amphibius Paepalanthus saxicolavar. pilosus Paepalanthus sect. Conodiscus |
topic |
Heterophylly Leaf anatomy Paepalanthoideae Paepalanthus amphibius Paepalanthus saxicolavar. pilosus Paepalanthus sect. Conodiscus |
description |
Phenotypic plasticity is common in aquatic monocots, but is sometimes mistaken with heteroblasty. In Eriocaulaceae, aquatic and amphibious species may present interesting adaptive morphological features. However, Paepalanthus saxicola var. pilosus is unusual by having two leaf morphotypes and scapes that can be partially submerged or completely exposed. This taxon also presents an uncertain identity due to its incomplete morphological description. Here, we studied the morphology and anatomy of both leaf morphotypes and of scapes of P. saxicola var. pilosus to understand if the morphological differences in leaves correspond to phenotypic plasticity or heteroblasty; and the ecological and systematic significance of its leaves and scapes. Besides, we describe its morphology to evaluate its identity. The short curved leaves show supporting tissue and three vascular bundles, while the long filiform ones lack supporting tissue and have a single vascular bundle. All specimens share anatomical characteristics of scape. We raised this taxon to the species level, giving it a replacing name, Paepalanthus amphibius. We observed that P. amphibius is the first confirmed report of heterophylly in Eriocaulaceae. The anatomy of its short leaves and scapes reflects adaptations to a xeric environment, while the anatomy of the long leaves shows characteristics adapted to an aquatic habit. Possibly, such degree of plasticity is underreported in the family, so we stress the importance of seasonal studies to understand the morphology and taxonomy of the amphibious species. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-10T20:00:24Z 2020-12-10T20:00:24Z 2020-05-01 |
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/10.1016/j.aquabot.2020.103214 Aquatic Botany. Amsterdam: Elsevier, v. 164, 10 p., 2020. 0304-3770 http://hdl.handle.net/11449/196920 10.1016/j.aquabot.2020.103214 WOS:000535951000001 |
url |
http://dx.doi.org/10.1016/j.aquabot.2020.103214 http://hdl.handle.net/11449/196920 |
identifier_str_mv |
Aquatic Botany. Amsterdam: Elsevier, v. 164, 10 p., 2020. 0304-3770 10.1016/j.aquabot.2020.103214 WOS:000535951000001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aquatic Botany |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
10 |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128842842243072 |