Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory

Autores
Mesquita-Neto, José Neiva; Paiva, Elder Antônio Sousa; Galetto, Leonardo; Kienzler, Clemens
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The specialised mutualism between Tococa guianensis and ants housed in its leaf domatia is a well-known example of myrmecophily. A pollination study on this species revealed that flowers in the bud stage exude a sugary solution that is collected by ants. Given the presence of this unexpected nectar secretion, we investigated how, where, and when floral buds of T. guianensis secret nectar and what function it serves. We studied a population of T. guianensis occurring in a swampy area in the Cerrado of Brazil by analyzing the chemical composition and secretion dynamics of the floral-bud nectar and the distribution and ultrastructure of secretory tissues. We also measured flower damage using ant-exclusion experiments. Floral bud nectar was secreted at the tip of the petals, which lack a typical glandular structure but possess distinctive mesophyll due to the presence of numerous calcium oxalate crystals. The nectar, the production of which ceased after flower opening, was composed mainly of sucrose and low amounts of glucose and fructose. Nectar was consumed by generalist ants and sporadically by stingless bees. Ant exclusion experiments resulted in significantly increased flower damage. The floral nectar of T. guianensis is produced during the bud stage. This bud-nectar has the extranuptial function of attracting generalist ants that reduce florivory. Pollen is the unique floral resource attracting pollinators during anthesis. Tococa guianensis, thus, establishes relationships with two functional groups of ant species: specialist ants acting against herbivory and generalist ants acting against florivory.
Fil: Mesquita-Neto, José Neiva. Universidad Católica del Maule; Chile. Universidade Federal de Minas Gerais; Brasil
Fil: Paiva, Elder Antônio Sousa. Universidade Federal de Minas Gerais; Brasil
Fil: Galetto, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Kienzler, Clemens. Universidade Federal de Minas Gerais; Brasil
Materia
DOMATIA
EXTRAFLORAL NECTAR
FLORAL NECTAR
FLORIVORY
MYRMECOPHILY
NECTARIES
PLANT–HERBIVORE INTERACTIONS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/130809
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivoryMesquita-Neto, José NeivaPaiva, Elder Antônio SousaGaletto, LeonardoKienzler, ClemensDOMATIAEXTRAFLORAL NECTARFLORAL NECTARFLORIVORYMYRMECOPHILYNECTARIESPLANT–HERBIVORE INTERACTIONShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The specialised mutualism between Tococa guianensis and ants housed in its leaf domatia is a well-known example of myrmecophily. A pollination study on this species revealed that flowers in the bud stage exude a sugary solution that is collected by ants. Given the presence of this unexpected nectar secretion, we investigated how, where, and when floral buds of T. guianensis secret nectar and what function it serves. We studied a population of T. guianensis occurring in a swampy area in the Cerrado of Brazil by analyzing the chemical composition and secretion dynamics of the floral-bud nectar and the distribution and ultrastructure of secretory tissues. We also measured flower damage using ant-exclusion experiments. Floral bud nectar was secreted at the tip of the petals, which lack a typical glandular structure but possess distinctive mesophyll due to the presence of numerous calcium oxalate crystals. The nectar, the production of which ceased after flower opening, was composed mainly of sucrose and low amounts of glucose and fructose. Nectar was consumed by generalist ants and sporadically by stingless bees. Ant exclusion experiments resulted in significantly increased flower damage. The floral nectar of T. guianensis is produced during the bud stage. This bud-nectar has the extranuptial function of attracting generalist ants that reduce florivory. Pollen is the unique floral resource attracting pollinators during anthesis. Tococa guianensis, thus, establishes relationships with two functional groups of ant species: specialist ants acting against herbivory and generalist ants acting against florivory.Fil: Mesquita-Neto, José Neiva. Universidad Católica del Maule; Chile. Universidade Federal de Minas Gerais; BrasilFil: Paiva, Elder Antônio Sousa. Universidade Federal de Minas Gerais; BrasilFil: Galetto, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Kienzler, Clemens. Universidade Federal de Minas Gerais; BrasilFrontiers Media S.A.2020-05-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/130809Mesquita-Neto, José Neiva; Paiva, Elder Antônio Sousa; Galetto, Leonardo; Kienzler, Clemens; Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory; Frontiers Media S.A.; Frontiers in Plant Science; 11; 627; 21-5-20201664-462XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3389/fpls.2020.00627info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fpls.2020.00627/fullinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:38:59Zoai:ri.conicet.gov.ar:11336/130809instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:39:00.013CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
title Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
spellingShingle Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
Mesquita-Neto, José Neiva
DOMATIA
EXTRAFLORAL NECTAR
FLORAL NECTAR
FLORIVORY
MYRMECOPHILY
NECTARIES
PLANT–HERBIVORE INTERACTIONS
title_short Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
title_full Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
title_fullStr Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
title_full_unstemmed Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
title_sort Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory
dc.creator.none.fl_str_mv Mesquita-Neto, José Neiva
Paiva, Elder Antônio Sousa
Galetto, Leonardo
Kienzler, Clemens
author Mesquita-Neto, José Neiva
author_facet Mesquita-Neto, José Neiva
Paiva, Elder Antônio Sousa
Galetto, Leonardo
Kienzler, Clemens
author_role author
author2 Paiva, Elder Antônio Sousa
Galetto, Leonardo
Kienzler, Clemens
author2_role author
author
author
dc.subject.none.fl_str_mv DOMATIA
EXTRAFLORAL NECTAR
FLORAL NECTAR
FLORIVORY
MYRMECOPHILY
NECTARIES
PLANT–HERBIVORE INTERACTIONS
topic DOMATIA
EXTRAFLORAL NECTAR
FLORAL NECTAR
FLORIVORY
MYRMECOPHILY
NECTARIES
PLANT–HERBIVORE INTERACTIONS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The specialised mutualism between Tococa guianensis and ants housed in its leaf domatia is a well-known example of myrmecophily. A pollination study on this species revealed that flowers in the bud stage exude a sugary solution that is collected by ants. Given the presence of this unexpected nectar secretion, we investigated how, where, and when floral buds of T. guianensis secret nectar and what function it serves. We studied a population of T. guianensis occurring in a swampy area in the Cerrado of Brazil by analyzing the chemical composition and secretion dynamics of the floral-bud nectar and the distribution and ultrastructure of secretory tissues. We also measured flower damage using ant-exclusion experiments. Floral bud nectar was secreted at the tip of the petals, which lack a typical glandular structure but possess distinctive mesophyll due to the presence of numerous calcium oxalate crystals. The nectar, the production of which ceased after flower opening, was composed mainly of sucrose and low amounts of glucose and fructose. Nectar was consumed by generalist ants and sporadically by stingless bees. Ant exclusion experiments resulted in significantly increased flower damage. The floral nectar of T. guianensis is produced during the bud stage. This bud-nectar has the extranuptial function of attracting generalist ants that reduce florivory. Pollen is the unique floral resource attracting pollinators during anthesis. Tococa guianensis, thus, establishes relationships with two functional groups of ant species: specialist ants acting against herbivory and generalist ants acting against florivory.
Fil: Mesquita-Neto, José Neiva. Universidad Católica del Maule; Chile. Universidade Federal de Minas Gerais; Brasil
Fil: Paiva, Elder Antônio Sousa. Universidade Federal de Minas Gerais; Brasil
Fil: Galetto, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Kienzler, Clemens. Universidade Federal de Minas Gerais; Brasil
description The specialised mutualism between Tococa guianensis and ants housed in its leaf domatia is a well-known example of myrmecophily. A pollination study on this species revealed that flowers in the bud stage exude a sugary solution that is collected by ants. Given the presence of this unexpected nectar secretion, we investigated how, where, and when floral buds of T. guianensis secret nectar and what function it serves. We studied a population of T. guianensis occurring in a swampy area in the Cerrado of Brazil by analyzing the chemical composition and secretion dynamics of the floral-bud nectar and the distribution and ultrastructure of secretory tissues. We also measured flower damage using ant-exclusion experiments. Floral bud nectar was secreted at the tip of the petals, which lack a typical glandular structure but possess distinctive mesophyll due to the presence of numerous calcium oxalate crystals. The nectar, the production of which ceased after flower opening, was composed mainly of sucrose and low amounts of glucose and fructose. Nectar was consumed by generalist ants and sporadically by stingless bees. Ant exclusion experiments resulted in significantly increased flower damage. The floral nectar of T. guianensis is produced during the bud stage. This bud-nectar has the extranuptial function of attracting generalist ants that reduce florivory. Pollen is the unique floral resource attracting pollinators during anthesis. Tococa guianensis, thus, establishes relationships with two functional groups of ant species: specialist ants acting against herbivory and generalist ants acting against florivory.
publishDate 2020
dc.date.none.fl_str_mv 2020-05-21
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/130809
Mesquita-Neto, José Neiva; Paiva, Elder Antônio Sousa; Galetto, Leonardo; Kienzler, Clemens; Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory; Frontiers Media S.A.; Frontiers in Plant Science; 11; 627; 21-5-2020
1664-462X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/130809
identifier_str_mv Mesquita-Neto, José Neiva; Paiva, Elder Antônio Sousa; Galetto, Leonardo; Kienzler, Clemens; Nectar secretion of floral buds of Tococa guianensis mediates interactions with generalist ants that reduce florivory; Frontiers Media S.A.; Frontiers in Plant Science; 11; 627; 21-5-2020
1664-462X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3389/fpls.2020.00627
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fpls.2020.00627/full
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Frontiers Media S.A.
publisher.none.fl_str_mv Frontiers Media S.A.
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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