Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata

Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata

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Background and aims: The floral biology of Lantana camara, a native species of Central and South America and invasive cosmopolitan, still presents poorly-known and controversial aspects. The aim of this work was to determine the reproductive system, floral attributes and pollinators in a coastal population of Río de la Plata. M and M: The usual methods in pollination biology were employed. The study was performed in Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, Argentina, during the spring of 2012. Results: The flowers emit mild and sweet odor by osmophores arranged around the floral tube entrance, in coincidence with the absorption-reflection pattern in the UV spectrum. Nectar accumulates in the floral tube, probably secreted by trichomes situated at the petals base. During anthesis, three floral phases succeed, distinguished by changes in corolla coloration, aroma intensity, reward quantity and anther and stigma maturity. The psychophilous flowers were visited by diurnal lepidopterans and by hymenopterans, dipterans and hummingbirds. The highest reproductive success occurred with free pollination; the self incompatibility and P/O indexes showed partial self-compatibility and facultative xenogamy, respectively. Conclusions: L. camara is capable of successful spontaneous self-pollination, probably one reason of its global spread. Due to their activity on the flowers, visited floral phase, pollen load and frequency of visits, only the butterflies Agraulis vanillae maculosa, Dryas iullia alcionea and Cymaenes sp. would pollinate in this site.

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Main Authors: Amela García, María Teresa, Aquino, Diego, Bouza, Agustina, Grohar, Mariana C., Herrera Cano, Anahí N., Lafuente Diaz, Maiten A., Miguez, María B., Chamer, Marina, Scorza, Victoria
Format: Texto biblioteca
Language:eng
Subjects:LANTANA CAMARA, FACULTATIVE XENOGAMY, LEPIDOPTERA, UV REFLECTANCE PATTERN, OSMOPHORES,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47525
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spelling KOHA-OAI-AGRO:475252023-06-15T12:38:48Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47525http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGSistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la PlataAmela García, María TeresaAquino, DiegoBouza, AgustinaGrohar, Mariana C.Herrera Cano, Anahí N.Lafuente Diaz, Maiten A.Miguez, María B.Chamer, MarinaScorza, Victoriatextengapplication/pdfBackground and aims: The floral biology of Lantana camara, a native species of Central and South America and invasive cosmopolitan, still presents poorly-known and controversial aspects. The aim of this work was to determine the reproductive system, floral attributes and pollinators in a coastal population of Río de la Plata. M and M: The usual methods in pollination biology were employed. The study was performed in Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, Argentina, during the spring of 2012. Results: The flowers emit mild and sweet odor by osmophores arranged around the floral tube entrance, in coincidence with the absorption-reflection pattern in the UV spectrum. Nectar accumulates in the floral tube, probably secreted by trichomes situated at the petals base. During anthesis, three floral phases succeed, distinguished by changes in corolla coloration, aroma intensity, reward quantity and anther and stigma maturity. The psychophilous flowers were visited by diurnal lepidopterans and by hymenopterans, dipterans and hummingbirds. The highest reproductive success occurred with free pollination; the self incompatibility and P/O indexes showed partial self-compatibility and facultative xenogamy, respectively. Conclusions: L. camara is capable of successful spontaneous self-pollination, probably one reason of its global spread. Due to their activity on the flowers, visited floral phase, pollen load and frequency of visits, only the butterflies Agraulis vanillae maculosa, Dryas iullia alcionea and Cymaenes sp. would pollinate in this site.Background and aims: The floral biology of Lantana camara, a native species of Central and South America and invasive cosmopolitan, still presents poorly-known and controversial aspects. The aim of this work was to determine the reproductive system, floral attributes and pollinators in a coastal population of Río de la Plata. M and M: The usual methods in pollination biology were employed. The study was performed in Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, Argentina, during the spring of 2012. Results: The flowers emit mild and sweet odor by osmophores arranged around the floral tube entrance, in coincidence with the absorption-reflection pattern in the UV spectrum. Nectar accumulates in the floral tube, probably secreted by trichomes situated at the petals base. During anthesis, three floral phases succeed, distinguished by changes in corolla coloration, aroma intensity, reward quantity and anther and stigma maturity. The psychophilous flowers were visited by diurnal lepidopterans and by hymenopterans, dipterans and hummingbirds. The highest reproductive success occurred with free pollination; the self incompatibility and P/O indexes showed partial self-compatibility and facultative xenogamy, respectively. Conclusions: L. camara is capable of successful spontaneous self-pollination, probably one reason of its global spread. Due to their activity on the flowers, visited floral phase, pollen load and frequency of visits, only the butterflies Agraulis vanillae maculosa, Dryas iullia alcionea and Cymaenes sp. would pollinate in this site.LANTANA CAMARAFACULTATIVE XENOGAMYLEPIDOPTERAUV REFLECTANCE PATTERNOSMOPHORESBoletín de la Sociedad Argentina de Botánica
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language eng
topic LANTANA CAMARA
FACULTATIVE XENOGAMY
LEPIDOPTERA
UV REFLECTANCE PATTERN
OSMOPHORES
LANTANA CAMARA
FACULTATIVE XENOGAMY
LEPIDOPTERA
UV REFLECTANCE PATTERN
OSMOPHORES
spellingShingle LANTANA CAMARA
FACULTATIVE XENOGAMY
LEPIDOPTERA
UV REFLECTANCE PATTERN
OSMOPHORES
LANTANA CAMARA
FACULTATIVE XENOGAMY
LEPIDOPTERA
UV REFLECTANCE PATTERN
OSMOPHORES
Amela García, María Teresa
Aquino, Diego
Bouza, Agustina
Grohar, Mariana C.
Herrera Cano, Anahí N.
Lafuente Diaz, Maiten A.
Miguez, María B.
Chamer, Marina
Scorza, Victoria
Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata
description Background and aims: The floral biology of Lantana camara, a native species of Central and South America and invasive cosmopolitan, still presents poorly-known and controversial aspects. The aim of this work was to determine the reproductive system, floral attributes and pollinators in a coastal population of Río de la Plata. M and M: The usual methods in pollination biology were employed. The study was performed in Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, Argentina, during the spring of 2012. Results: The flowers emit mild and sweet odor by osmophores arranged around the floral tube entrance, in coincidence with the absorption-reflection pattern in the UV spectrum. Nectar accumulates in the floral tube, probably secreted by trichomes situated at the petals base. During anthesis, three floral phases succeed, distinguished by changes in corolla coloration, aroma intensity, reward quantity and anther and stigma maturity. The psychophilous flowers were visited by diurnal lepidopterans and by hymenopterans, dipterans and hummingbirds. The highest reproductive success occurred with free pollination; the self incompatibility and P/O indexes showed partial self-compatibility and facultative xenogamy, respectively. Conclusions: L. camara is capable of successful spontaneous self-pollination, probably one reason of its global spread. Due to their activity on the flowers, visited floral phase, pollen load and frequency of visits, only the butterflies Agraulis vanillae maculosa, Dryas iullia alcionea and Cymaenes sp. would pollinate in this site.
format Texto
topic_facet LANTANA CAMARA
FACULTATIVE XENOGAMY
LEPIDOPTERA
UV REFLECTANCE PATTERN
OSMOPHORES
author Amela García, María Teresa
Aquino, Diego
Bouza, Agustina
Grohar, Mariana C.
Herrera Cano, Anahí N.
Lafuente Diaz, Maiten A.
Miguez, María B.
Chamer, Marina
Scorza, Victoria
author_facet Amela García, María Teresa
Aquino, Diego
Bouza, Agustina
Grohar, Mariana C.
Herrera Cano, Anahí N.
Lafuente Diaz, Maiten A.
Miguez, María B.
Chamer, Marina
Scorza, Victoria
author_sort Amela García, María Teresa
title Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata
title_short Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata
title_full Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata
title_fullStr Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata
title_full_unstemmed Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata
title_sort sistema reproductivo y biología floral de lantana camara (verbenaceae) en una población ribereña del río de la plata
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47525
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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