Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae)
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Rodriguésia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602016000100019 |
Resumo: | Presumed domatia are actually extrafloral nectaries on leaves ofAnacardium humile (Anacardiaceae), a species from the Brazilian savannah, is associated with foraging ants, which leads to the description of the structure of its leaves as domatia. However, the ants collect secretions on the leaves, a phenomenon that inspired us to elucidate this structure. To this end, we conducted an analysis of the distribution, micromorphology, anatomy and histochemistry of these supposed domatia. They are located in the axil of thicker leaf veins and are composed of glandular trichomes which exude glucose; they are, therefore, described here as extrafloral nectaries (EFNs). The nectariferous trichomes are located at the same level as the other epidermal cells on young leaves, while in mature leaves they were found in depressions of the leaf blade. The secretory activity of EFNs is limited to juvenile phases, becoming degenerated in mature leaves. Carbohydrates and lipophilic compounds were detected in the produced secretion. It can be concluded that the presence of ants foraging leaves to collect from EFNs indicates a mutualistic interaction, with the plant providing a sugar resource to the ants in return for protection against herbivory since they are present in developing leaves. |
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Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae)Cashewextrafloral nectaryglandular trichomeshistochemistrynectarPresumed domatia are actually extrafloral nectaries on leaves ofAnacardium humile (Anacardiaceae), a species from the Brazilian savannah, is associated with foraging ants, which leads to the description of the structure of its leaves as domatia. However, the ants collect secretions on the leaves, a phenomenon that inspired us to elucidate this structure. To this end, we conducted an analysis of the distribution, micromorphology, anatomy and histochemistry of these supposed domatia. They are located in the axil of thicker leaf veins and are composed of glandular trichomes which exude glucose; they are, therefore, described here as extrafloral nectaries (EFNs). The nectariferous trichomes are located at the same level as the other epidermal cells on young leaves, while in mature leaves they were found in depressions of the leaf blade. The secretory activity of EFNs is limited to juvenile phases, becoming degenerated in mature leaves. Carbohydrates and lipophilic compounds were detected in the produced secretion. It can be concluded that the presence of ants foraging leaves to collect from EFNs indicates a mutualistic interaction, with the plant providing a sugar resource to the ants in return for protection against herbivory since they are present in developing leaves.Instituto de Pesquisas Jardim Botânico do Rio de Janeiro2016-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602016000100019Rodriguésia v.67 n.1 2016reponame:Rodriguésia (Online)instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)instacron:JBRJ10.1590/2175-7860201667102info:eu-repo/semantics/openAccessLacchia,Ana Paula StechhahnTölke,Elisabeth Emilia Augusta DantasDemarco,DiegoCarmello-Guerreiro,Sandra Mariaeng2016-03-07T00:00:00Zoai:scielo:S2175-78602016000100019Revistahttp://rodriguesia.jbrj.gov.br/https://old.scielo.br/oai/scielo-oai.phprodriguesia@jbrj.gov.br2175-78600370-6583opendoar:2016-03-07T00:00Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)false |
dc.title.none.fl_str_mv |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) |
title |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) |
spellingShingle |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) Lacchia,Ana Paula Stechhahn Cashew extrafloral nectary glandular trichomes histochemistry nectar |
title_short |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) |
title_full |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) |
title_fullStr |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) |
title_full_unstemmed |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) |
title_sort |
Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae) |
author |
Lacchia,Ana Paula Stechhahn |
author_facet |
Lacchia,Ana Paula Stechhahn Tölke,Elisabeth Emilia Augusta Dantas Demarco,Diego Carmello-Guerreiro,Sandra Maria |
author_role |
author |
author2 |
Tölke,Elisabeth Emilia Augusta Dantas Demarco,Diego Carmello-Guerreiro,Sandra Maria |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Lacchia,Ana Paula Stechhahn Tölke,Elisabeth Emilia Augusta Dantas Demarco,Diego Carmello-Guerreiro,Sandra Maria |
dc.subject.por.fl_str_mv |
Cashew extrafloral nectary glandular trichomes histochemistry nectar |
topic |
Cashew extrafloral nectary glandular trichomes histochemistry nectar |
description |
Presumed domatia are actually extrafloral nectaries on leaves ofAnacardium humile (Anacardiaceae), a species from the Brazilian savannah, is associated with foraging ants, which leads to the description of the structure of its leaves as domatia. However, the ants collect secretions on the leaves, a phenomenon that inspired us to elucidate this structure. To this end, we conducted an analysis of the distribution, micromorphology, anatomy and histochemistry of these supposed domatia. They are located in the axil of thicker leaf veins and are composed of glandular trichomes which exude glucose; they are, therefore, described here as extrafloral nectaries (EFNs). The nectariferous trichomes are located at the same level as the other epidermal cells on young leaves, while in mature leaves they were found in depressions of the leaf blade. The secretory activity of EFNs is limited to juvenile phases, becoming degenerated in mature leaves. Carbohydrates and lipophilic compounds were detected in the produced secretion. It can be concluded that the presence of ants foraging leaves to collect from EFNs indicates a mutualistic interaction, with the plant providing a sugar resource to the ants in return for protection against herbivory since they are present in developing leaves. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-01 |
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=S2175-78602016000100019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602016000100019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2175-7860201667102 |
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 de Pesquisas Jardim Botânico do Rio de Janeiro |
publisher.none.fl_str_mv |
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro |
dc.source.none.fl_str_mv |
Rodriguésia v.67 n.1 2016 reponame:Rodriguésia (Online) instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ) instacron:JBRJ |
instname_str |
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ) |
instacron_str |
JBRJ |
institution |
JBRJ |
reponame_str |
Rodriguésia (Online) |
collection |
Rodriguésia (Online) |
repository.name.fl_str_mv |
Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ) |
repository.mail.fl_str_mv |
rodriguesia@jbrj.gov.br |
_version_ |
1752128671669288960 |