Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae)
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Amazonica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000200127 |
Resumo: | ABSTRACT Nodal glands are found in one third of the Polygalaceae genera and have valuable taxonomic, ecological and evolutionary significance. In Brazil, they occur in five of the eleven genera already registered. However, there is still a controversy regarding the origin of these structures. The objective of this study was to characterize the morphology and the origin of nodal glands inCaamembeca spectabilis, in order to increase the structural and functional knowledge of these glands in the genera. Samples of nodal regions were collected, fixed and processed according to the methods of light microscopy and electron scanning. Ants were observed and identified along the stem axis. The glucose in exudate allows us to classify these glands as extrafloral nectaries. They are located in pairs on the nodal region. However, its origin is in the leaf trace. In the longitudinal section, the nectaries were present in the apex of cells with anticlinal walls impregnated with suberin, which represents the first record for the family. In this region there is also the formation of a hole by lysis. The secretory tissue is surrounded by phloem. Xylem vessels were observed only on the basis of the nectary, where there are also idioblasts with crystals in druse type. We have studied the ontogeny of the glands nodal in Caamembeca spectabilis and unveiled that these glands are linked to the leaves as stipular nectaries. In addition, the new findings presented here may add support for the understanding of morphology and anatomy of nodal glands in Caamembeca. |
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Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae)Fabalesextrafloral nectariesvascularizationsuberinantsABSTRACT Nodal glands are found in one third of the Polygalaceae genera and have valuable taxonomic, ecological and evolutionary significance. In Brazil, they occur in five of the eleven genera already registered. However, there is still a controversy regarding the origin of these structures. The objective of this study was to characterize the morphology and the origin of nodal glands inCaamembeca spectabilis, in order to increase the structural and functional knowledge of these glands in the genera. Samples of nodal regions were collected, fixed and processed according to the methods of light microscopy and electron scanning. Ants were observed and identified along the stem axis. The glucose in exudate allows us to classify these glands as extrafloral nectaries. They are located in pairs on the nodal region. However, its origin is in the leaf trace. In the longitudinal section, the nectaries were present in the apex of cells with anticlinal walls impregnated with suberin, which represents the first record for the family. In this region there is also the formation of a hole by lysis. The secretory tissue is surrounded by phloem. Xylem vessels were observed only on the basis of the nectary, where there are also idioblasts with crystals in druse type. We have studied the ontogeny of the glands nodal in Caamembeca spectabilis and unveiled that these glands are linked to the leaves as stipular nectaries. In addition, the new findings presented here may add support for the understanding of morphology and anatomy of nodal glands in Caamembeca.Instituto Nacional de Pesquisas da Amazônia2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000200127Acta Amazonica v.46 n.2 2016reponame:Acta Amazonicainstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPA10.1590/1809-4392201501964info:eu-repo/semantics/openAccessFILGUEIRA,Joana Patrícia Pantoja SerrãoKIKUCHI,Tatiani Yuriko SouzaCOELHO-FERREIRA,Márlia Reginaeng2016-03-31T00:00:00Zoai:scielo:S0044-59672016000200127Revistahttps://acta.inpa.gov.br/PUBhttps://old.scielo.br/oai/scielo-oai.phpacta@inpa.gov.br||acta@inpa.gov.br1809-43920044-5967opendoar:2016-03-31T00:00Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.none.fl_str_mv |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) |
title |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) |
spellingShingle |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) FILGUEIRA,Joana Patrícia Pantoja Serrão Fabales extrafloral nectaries vascularization suberin ants |
title_short |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) |
title_full |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) |
title_fullStr |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) |
title_full_unstemmed |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) |
title_sort |
Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) |
author |
FILGUEIRA,Joana Patrícia Pantoja Serrão |
author_facet |
FILGUEIRA,Joana Patrícia Pantoja Serrão KIKUCHI,Tatiani Yuriko Souza COELHO-FERREIRA,Márlia Regina |
author_role |
author |
author2 |
KIKUCHI,Tatiani Yuriko Souza COELHO-FERREIRA,Márlia Regina |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
FILGUEIRA,Joana Patrícia Pantoja Serrão KIKUCHI,Tatiani Yuriko Souza COELHO-FERREIRA,Márlia Regina |
dc.subject.por.fl_str_mv |
Fabales extrafloral nectaries vascularization suberin ants |
topic |
Fabales extrafloral nectaries vascularization suberin ants |
description |
ABSTRACT Nodal glands are found in one third of the Polygalaceae genera and have valuable taxonomic, ecological and evolutionary significance. In Brazil, they occur in five of the eleven genera already registered. However, there is still a controversy regarding the origin of these structures. The objective of this study was to characterize the morphology and the origin of nodal glands inCaamembeca spectabilis, in order to increase the structural and functional knowledge of these glands in the genera. Samples of nodal regions were collected, fixed and processed according to the methods of light microscopy and electron scanning. Ants were observed and identified along the stem axis. The glucose in exudate allows us to classify these glands as extrafloral nectaries. They are located in pairs on the nodal region. However, its origin is in the leaf trace. In the longitudinal section, the nectaries were present in the apex of cells with anticlinal walls impregnated with suberin, which represents the first record for the family. In this region there is also the formation of a hole by lysis. The secretory tissue is surrounded by phloem. Xylem vessels were observed only on the basis of the nectary, where there are also idioblasts with crystals in druse type. We have studied the ontogeny of the glands nodal in Caamembeca spectabilis and unveiled that these glands are linked to the leaves as stipular nectaries. In addition, the new findings presented here may add support for the understanding of morphology and anatomy of nodal glands in Caamembeca. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000200127 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000200127 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1809-4392201501964 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
dc.source.none.fl_str_mv |
Acta Amazonica v.46 n.2 2016 reponame:Acta Amazonica instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
instname_str |
Instituto Nacional de Pesquisas da Amazônia (INPA) |
instacron_str |
INPA |
institution |
INPA |
reponame_str |
Acta Amazonica |
collection |
Acta Amazonica |
repository.name.fl_str_mv |
Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA) |
repository.mail.fl_str_mv |
acta@inpa.gov.br||acta@inpa.gov.br |
_version_ |
1752129840352329728 |