Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44062 |
Resumo: | This research aimed to explore the reproductive characteristics of three species of Psidium (P. guajava L., P. cattleyanum Sabine, and P. guineense Sw.) and estimate a probable reproduction strategy based on the pollen:ovule (P:O) methodology. The number of pollen grains per floral bud (NGPB), number of pollen grains per anther (NGPA), number of anthers per flower bud (NAB), number of ovules per flower bud (NOB), and the P:O ratio of each species were estimated. All species had a P:O ratio over 2,000 and were classified as xenogamous. P.guajava presented the highest values for all characteristics evaluated, with the NGPB at 3,777,519, the NOB at 584.50 and a P:O ratio of 6,462.82. Similarly, P. cattleyanum had a P:O ratio of 5,649.89 (NGPB 762,736 and NOB 135). However, P. guineense was considered facultative xenogamous, with P:O of 2,085.75, the NGPB at 741,484 and the NOB at 355.50. Thus, it was concluded that the studied species have a preference for allogamy and require many pollen grains to fertilize each ovule, demonstrating that the transfer of pollen to the stigma is not very specialized. |
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Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratioAnalysis of the reproduction mode in Psidium spp. using the pollen:ovule ratioAllogamyautogamyPsidium cattleyanumPsidium guajavaPsidium guineense.This research aimed to explore the reproductive characteristics of three species of Psidium (P. guajava L., P. cattleyanum Sabine, and P. guineense Sw.) and estimate a probable reproduction strategy based on the pollen:ovule (P:O) methodology. The number of pollen grains per floral bud (NGPB), number of pollen grains per anther (NGPA), number of anthers per flower bud (NAB), number of ovules per flower bud (NOB), and the P:O ratio of each species were estimated. All species had a P:O ratio over 2,000 and were classified as xenogamous. P.guajava presented the highest values for all characteristics evaluated, with the NGPB at 3,777,519, the NOB at 584.50 and a P:O ratio of 6,462.82. Similarly, P. cattleyanum had a P:O ratio of 5,649.89 (NGPB 762,736 and NOB 135). However, P. guineense was considered facultative xenogamous, with P:O of 2,085.75, the NGPB at 741,484 and the NOB at 355.50. Thus, it was concluded that the studied species have a preference for allogamy and require many pollen grains to fertilize each ovule, demonstrating that the transfer of pollen to the stigma is not very specialized.This research aimed to explore the reproductive characteristics of three species of Psidium (P. guajava L., P. cattleyanum Sabine, and P. guineense Sw.) and estimate a probable reproduction strategy based on the pollen:ovule (P:O) methodology. The number of pollen grains per floral bud (NGPB), number of pollen grains per anther (NGPA), number of anthers per flower bud (NAB), number of ovules per flower bud (NOB), and the P:O ratio of each species were estimated. All species had a P:O ratio over 2,000 and were classified as xenogamous. P.guajava presented the highest values for all characteristics evaluated, with the NGPB at 3,777,519, the NOB at 584.50 and a P:O ratio of 6,462.82. Similarly, P. cattleyanum had a P:O ratio of 5,649.89 (NGPB 762,736 and NOB 135). However, P. guineense was considered facultative xenogamous, with P:O of 2,085.75, the NGPB at 741,484 and the NOB at 355.50. Thus, it was concluded that the studied species have a preference for allogamy and require many pollen grains to fertilize each ovule, demonstrating that the transfer of pollen to the stigma is not very specialized.Universidade Estadual de Maringá2020-08-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisaapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4406210.4025/actasciagron.v43i1.44062Acta Scientiarum. Agronomy; Vol 43 (2021): Publicação contínua; e44062Acta Scientiarum. Agronomy; v. 43 (2021): Publicação contínua; e440621807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44062/751375150512Copyright (c) 2021 Acta Scientiarum. Agronomyhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess Oliveira, Maria Lorraine FonsecaPereira, Telma Nair SantanaBarbosa, Rodrigo MirandaViana, Alexandre Pio2022-02-16T21:47:06Zoai:periodicos.uem.br/ojs:article/44062Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-02-16T21:47:06Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
title |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
spellingShingle |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio Oliveira, Maria Lorraine Fonseca Allogamy autogamy Psidium cattleyanum Psidium guajava Psidium guineense. |
title_short |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
title_full |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
title_fullStr |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
title_full_unstemmed |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
title_sort |
Analysis of the reproduction mode in Psidium spp. using the pollen:ovule ratio |
author |
Oliveira, Maria Lorraine Fonseca |
author_facet |
Oliveira, Maria Lorraine Fonseca Pereira, Telma Nair Santana Barbosa, Rodrigo Miranda Viana, Alexandre Pio |
author_role |
author |
author2 |
Pereira, Telma Nair Santana Barbosa, Rodrigo Miranda Viana, Alexandre Pio |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Maria Lorraine Fonseca Pereira, Telma Nair Santana Barbosa, Rodrigo Miranda Viana, Alexandre Pio |
dc.subject.por.fl_str_mv |
Allogamy autogamy Psidium cattleyanum Psidium guajava Psidium guineense. |
topic |
Allogamy autogamy Psidium cattleyanum Psidium guajava Psidium guineense. |
description |
This research aimed to explore the reproductive characteristics of three species of Psidium (P. guajava L., P. cattleyanum Sabine, and P. guineense Sw.) and estimate a probable reproduction strategy based on the pollen:ovule (P:O) methodology. The number of pollen grains per floral bud (NGPB), number of pollen grains per anther (NGPA), number of anthers per flower bud (NAB), number of ovules per flower bud (NOB), and the P:O ratio of each species were estimated. All species had a P:O ratio over 2,000 and were classified as xenogamous. P.guajava presented the highest values for all characteristics evaluated, with the NGPB at 3,777,519, the NOB at 584.50 and a P:O ratio of 6,462.82. Similarly, P. cattleyanum had a P:O ratio of 5,649.89 (NGPB 762,736 and NOB 135). However, P. guineense was considered facultative xenogamous, with P:O of 2,085.75, the NGPB at 741,484 and the NOB at 355.50. Thus, it was concluded that the studied species have a preference for allogamy and require many pollen grains to fertilize each ovule, demonstrating that the transfer of pollen to the stigma is not very specialized. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44062 10.4025/actasciagron.v43i1.44062 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44062 |
identifier_str_mv |
10.4025/actasciagron.v43i1.44062 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/44062/751375150512 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 43 (2021): Publicação contínua; e44062 Acta Scientiarum. Agronomy; v. 43 (2021): Publicação contínua; e44062 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
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1799305911293968384 |