Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions
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/10.1590/0102-33062019abb0120 http://hdl.handle.net/11449/196716 |
Resumo: | Hydropotes are specialized epidermal structures involved in water and mineral flux into and out of the plant body. We analyzed hydropote morphology of four species of Nymphaeaceae: Nymphaea caerulea, Nymphaea lotus, Nymphaea rubra, and Victoria amazonica. Leaf samples were processed following conventional techniques for plant anatomy and for scanning and transmission electron microscopy. We observed hydropotes comprising an elongated apical sharp-pointed portion with a base composed of two to three short specialized cells. In a later developmental stage the apical sharp-pointed portion was detached and the mature hydropotes comprised an upper lens-shaped cell, a bowl-shaped cell and a large foot cell. Ultrastructural analysis revealed that the lens-shaped cell possesses labyrinthine projections in its outer periclinal wall and abundant plasmodesmata in its inner periclinal wall. Several mitochondria were present in the cytoplasm of both the lens-shaped and the bowl-shaped cells. The cytoplasm of the foot cell was reduced and possessed plastids with starch grains. The ultrastructure of the hydropotes is typical of cells involved in transporting substances and corroborates their role in the flux of substances into and out of the cell. These findings contribute to a better understanding of the functioning of hydropotes and shed light on this little-explored issue. |
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Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functionsNymphaeaesubcellular featuresstructuretrichomesVictoriaHydropotes are specialized epidermal structures involved in water and mineral flux into and out of the plant body. We analyzed hydropote morphology of four species of Nymphaeaceae: Nymphaea caerulea, Nymphaea lotus, Nymphaea rubra, and Victoria amazonica. Leaf samples were processed following conventional techniques for plant anatomy and for scanning and transmission electron microscopy. We observed hydropotes comprising an elongated apical sharp-pointed portion with a base composed of two to three short specialized cells. In a later developmental stage the apical sharp-pointed portion was detached and the mature hydropotes comprised an upper lens-shaped cell, a bowl-shaped cell and a large foot cell. Ultrastructural analysis revealed that the lens-shaped cell possesses labyrinthine projections in its outer periclinal wall and abundant plasmodesmata in its inner periclinal wall. Several mitochondria were present in the cytoplasm of both the lens-shaped and the bowl-shaped cells. The cytoplasm of the foot cell was reduced and possessed plastids with starch grains. The ultrastructure of the hydropotes is typical of cells involved in transporting substances and corroborates their role in the flux of substances into and out of the cell. These findings contribute to a better understanding of the functioning of hydropotes and shed light on this little-explored issue.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Inst Biociencias Botucatu, Dept Bot, BR-18618689 Botucatu, SP, BrazilUniv Fed Rural Rio de Janeiro, Inst Ciencias Biol & Saude, Dept Bot, BR-23897000 Seropedica, RJ, BrazilUniv Estadual Paulista, Inst Biociencias Botucatu, Dept Bot, BR-18618689 Botucatu, SP, BrazilCAPES: 001CNPq: 303981/2018-0Soc Botanica BrasilUniversidade Estadual Paulista (Unesp)Univ Fed Rural Rio de JaneiroSantos Tozin, Luiz Ricardo dos [UNESP]Rodrigues, Tatiane Maria [UNESP]2020-12-10T19:53:55Z2020-12-10T19:53:55Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article31-39application/pdfhttp://dx.doi.org/10.1590/0102-33062019abb0120Acta Botanica Brasilica. Sao Paulo Sp: Soc Botanica Brasil, v. 34, n. 1, p. 31-39, 2020.0102-3306http://hdl.handle.net/11449/19671610.1590/0102-33062019abb0120S0102-33062020000100031WOS:000521733100004S0102-33062020000100031.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Botanica Brasilicainfo:eu-repo/semantics/openAccess2023-11-14T06:16:26Zoai:repositorio.unesp.br:11449/196716Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:41:26.142052Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions |
title |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions |
spellingShingle |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions Santos Tozin, Luiz Ricardo dos [UNESP] Nymphaeae subcellular features structure trichomes Victoria |
title_short |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions |
title_full |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions |
title_fullStr |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions |
title_full_unstemmed |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions |
title_sort |
Revisiting hydropotes of Nymphaeaceae. ultrastructural features associated with glandular functions |
author |
Santos Tozin, Luiz Ricardo dos [UNESP] |
author_facet |
Santos Tozin, Luiz Ricardo dos [UNESP] Rodrigues, Tatiane Maria [UNESP] |
author_role |
author |
author2 |
Rodrigues, Tatiane Maria [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Univ Fed Rural Rio de Janeiro |
dc.contributor.author.fl_str_mv |
Santos Tozin, Luiz Ricardo dos [UNESP] Rodrigues, Tatiane Maria [UNESP] |
dc.subject.por.fl_str_mv |
Nymphaeae subcellular features structure trichomes Victoria |
topic |
Nymphaeae subcellular features structure trichomes Victoria |
description |
Hydropotes are specialized epidermal structures involved in water and mineral flux into and out of the plant body. We analyzed hydropote morphology of four species of Nymphaeaceae: Nymphaea caerulea, Nymphaea lotus, Nymphaea rubra, and Victoria amazonica. Leaf samples were processed following conventional techniques for plant anatomy and for scanning and transmission electron microscopy. We observed hydropotes comprising an elongated apical sharp-pointed portion with a base composed of two to three short specialized cells. In a later developmental stage the apical sharp-pointed portion was detached and the mature hydropotes comprised an upper lens-shaped cell, a bowl-shaped cell and a large foot cell. Ultrastructural analysis revealed that the lens-shaped cell possesses labyrinthine projections in its outer periclinal wall and abundant plasmodesmata in its inner periclinal wall. Several mitochondria were present in the cytoplasm of both the lens-shaped and the bowl-shaped cells. The cytoplasm of the foot cell was reduced and possessed plastids with starch grains. The ultrastructure of the hydropotes is typical of cells involved in transporting substances and corroborates their role in the flux of substances into and out of the cell. These findings contribute to a better understanding of the functioning of hydropotes and shed light on this little-explored issue. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-10T19:53:55Z 2020-12-10T19:53:55Z 2020-01-01 |
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/10.1590/0102-33062019abb0120 Acta Botanica Brasilica. Sao Paulo Sp: Soc Botanica Brasil, v. 34, n. 1, p. 31-39, 2020. 0102-3306 http://hdl.handle.net/11449/196716 10.1590/0102-33062019abb0120 S0102-33062020000100031 WOS:000521733100004 S0102-33062020000100031.pdf |
url |
http://dx.doi.org/10.1590/0102-33062019abb0120 http://hdl.handle.net/11449/196716 |
identifier_str_mv |
Acta Botanica Brasilica. Sao Paulo Sp: Soc Botanica Brasil, v. 34, n. 1, p. 31-39, 2020. 0102-3306 10.1590/0102-33062019abb0120 S0102-33062020000100031 WOS:000521733100004 S0102-33062020000100031.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Acta Botanica Brasilica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
31-39 application/pdf |
dc.publisher.none.fl_str_mv |
Soc Botanica Brasil |
publisher.none.fl_str_mv |
Soc Botanica Brasil |
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 |
|
_version_ |
1808128845591609344 |