Presumed domatia are actually extrafloral nectaries on leaves of Anacardium humile (Anacardiaceae)

Detalhes bibliográficos
Autor(a) principal: Lacchia,Ana Paula Stechhahn
Data de Publicação: 2016
Outros Autores: Tölke,Elisabeth Emilia Augusta Dantas, Demarco,Diego, Carmello-Guerreiro,Sandra Maria
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.
id JBRJ-1_4714986a6d114b90fd50a4cca26424e1
oai_identifier_str oai:scielo:S2175-78602016000100019
network_acronym_str JBRJ-1
network_name_str Rodriguésia (Online)
repository_id_str
spelling 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