Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1163/22941932-bja10045 http://hdl.handle.net/11449/210071 |
Resumo: | This study provides a detailed analysis of phloem anatomy, development, the formation of cell types, differentiation, and sieve-tube element's longevity in two tropical arboreal species, Cedrela fissilis (Meliaceae, Rosid) and Citharexyhun myrianthum (Verbenaceae, Asterid), growing in natural populations in the semi-deciduous Atlantic Rainforest. We periodically collected samples from the main stem at breast height (1.3 m), during both the dry and the wet seasons. Differences in the cells produced at these different seasons suggest that annual growth increments in the phloem are present in both species, marked by files of terminal narrow sieve-tube elements radially grouped in Cedrela fissilis, and in assemblages of narrow sieve tubes and axial parenchyma in Cytharexylum myrianthum, both appearing at the end of the wet season. In Cedrela fissilis, where fiber bands are present, each fiber band marks the end of the early phloem, acting as an indirect annual growth ring marker. Sieve-tube element longevity varied for both species from 4-26 months, a result similar to that obtained in temperate species. |
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Phloem development, growth markers, and sieve-tube longevity in two Neotropical treesCambial seasonalityphloem growth ringsphloem anatomyVerbenaceaeMeliaceaeThis study provides a detailed analysis of phloem anatomy, development, the formation of cell types, differentiation, and sieve-tube element's longevity in two tropical arboreal species, Cedrela fissilis (Meliaceae, Rosid) and Citharexyhun myrianthum (Verbenaceae, Asterid), growing in natural populations in the semi-deciduous Atlantic Rainforest. We periodically collected samples from the main stem at breast height (1.3 m), during both the dry and the wet seasons. Differences in the cells produced at these different seasons suggest that annual growth increments in the phloem are present in both species, marked by files of terminal narrow sieve-tube elements radially grouped in Cedrela fissilis, and in assemblages of narrow sieve tubes and axial parenchyma in Cytharexylum myrianthum, both appearing at the end of the wet season. In Cedrela fissilis, where fiber bands are present, each fiber band marks the end of the early phloem, acting as an indirect annual growth ring marker. Sieve-tube element longevity varied for both species from 4-26 months, a result similar to that obtained in temperate species.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)PAPIIT-DGAPAConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Sao Paulo, Lab Anat Vegetal, Dept Bot, Rua Matao 277,Cidade Univ, BR-05508090 Sao Paulo, SP, BrazilUniv Nacl Autonoma Mexico, Inst Biol, Dept Bot, Circuito Zona Deportiva S-N,Ciudad Univ, Mexico City 04510, DF, MexicoUniv Estadual Paulista, Fac Ciencias Agronom, Dept Ciencia Florestal Solos & Ambiente, BR-18610307 Botucatu, SP, BrazilUniv Wisconsin, Dept Bot, Birge Hall,430 Lincoln Dr, Madison, WI 53706 USAUniv Estadual Paulista, Fac Ciencias Agronom, Dept Ciencia Florestal Solos & Ambiente, BR-18610307 Botucatu, SP, BrazilFAPESP: 2015/14954-1FAPESP: 2018/06917-7PAPIIT-DGAPA: IA200319CNPq: 304715/2018-2BrillUniversidade de São Paulo (USP)Univ Nacl Autonoma MexicoUniversidade Estadual Paulista (Unesp)Univ WisconsinAngyalossy, VeronicaPace, Marcelo R.Marcati, Carmen R. [UNESP]Evert, Ray F.2021-06-25T12:38:46Z2021-06-25T12:38:46Z2021-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article31-49http://dx.doi.org/10.1163/22941932-bja10045Iawa Journal. Leiden: Brill, v. 42, n. 1, p. 31-49, 2021.0928-1541http://hdl.handle.net/11449/21007110.1163/22941932-bja10045WOS:000621847100002Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIawa Journalinfo:eu-repo/semantics/openAccess2024-04-30T13:11:14Zoai:repositorio.unesp.br:11449/210071Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:37:55.926427Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees |
title |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees |
spellingShingle |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees Angyalossy, Veronica Cambial seasonality phloem growth rings phloem anatomy Verbenaceae Meliaceae |
title_short |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees |
title_full |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees |
title_fullStr |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees |
title_full_unstemmed |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees |
title_sort |
Phloem development, growth markers, and sieve-tube longevity in two Neotropical trees |
author |
Angyalossy, Veronica |
author_facet |
Angyalossy, Veronica Pace, Marcelo R. Marcati, Carmen R. [UNESP] Evert, Ray F. |
author_role |
author |
author2 |
Pace, Marcelo R. Marcati, Carmen R. [UNESP] Evert, Ray F. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Univ Nacl Autonoma Mexico Universidade Estadual Paulista (Unesp) Univ Wisconsin |
dc.contributor.author.fl_str_mv |
Angyalossy, Veronica Pace, Marcelo R. Marcati, Carmen R. [UNESP] Evert, Ray F. |
dc.subject.por.fl_str_mv |
Cambial seasonality phloem growth rings phloem anatomy Verbenaceae Meliaceae |
topic |
Cambial seasonality phloem growth rings phloem anatomy Verbenaceae Meliaceae |
description |
This study provides a detailed analysis of phloem anatomy, development, the formation of cell types, differentiation, and sieve-tube element's longevity in two tropical arboreal species, Cedrela fissilis (Meliaceae, Rosid) and Citharexyhun myrianthum (Verbenaceae, Asterid), growing in natural populations in the semi-deciduous Atlantic Rainforest. We periodically collected samples from the main stem at breast height (1.3 m), during both the dry and the wet seasons. Differences in the cells produced at these different seasons suggest that annual growth increments in the phloem are present in both species, marked by files of terminal narrow sieve-tube elements radially grouped in Cedrela fissilis, and in assemblages of narrow sieve tubes and axial parenchyma in Cytharexylum myrianthum, both appearing at the end of the wet season. In Cedrela fissilis, where fiber bands are present, each fiber band marks the end of the early phloem, acting as an indirect annual growth ring marker. Sieve-tube element longevity varied for both species from 4-26 months, a result similar to that obtained in temperate species. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T12:38:46Z 2021-06-25T12:38:46Z 2021-02-01 |
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/10.1163/22941932-bja10045 Iawa Journal. Leiden: Brill, v. 42, n. 1, p. 31-49, 2021. 0928-1541 http://hdl.handle.net/11449/210071 10.1163/22941932-bja10045 WOS:000621847100002 |
url |
http://dx.doi.org/10.1163/22941932-bja10045 http://hdl.handle.net/11449/210071 |
identifier_str_mv |
Iawa Journal. Leiden: Brill, v. 42, n. 1, p. 31-49, 2021. 0928-1541 10.1163/22941932-bja10045 WOS:000621847100002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Iawa Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
31-49 |
dc.publisher.none.fl_str_mv |
Brill |
publisher.none.fl_str_mv |
Brill |
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_ |
1808129098387554304 |