Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river
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 pop...
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Sociedad Argentina de Botánica
2019
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/23578 |
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I10-R325-article-23578 |
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ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| language |
Español |
| format |
Artículo revista |
| topic |
Lantana camara facultative xenogamy Lepidoptera reproductive success floral phases UV reflectance pattern osmophores. Lantana camara xenogamia facultativa Lepidoptera éxito reproductivo fases florales patrón de reflexión UV osmóforos. |
| spellingShingle |
Lantana camara facultative xenogamy Lepidoptera reproductive success floral phases UV reflectance pattern osmophores. Lantana camara xenogamia facultativa Lepidoptera éxito reproductivo fases florales patrón de reflexión UV osmóforos. Amela García, María T. Aquino, Diego Bouza, Agustina Grohar, Mariana C. Herrera Cano, Anahí N. Lafuente Díaz, Maitén Miguez, María B. Scorza, Victoria Chamer, Marina Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river |
| topic_facet |
Lantana camara facultative xenogamy Lepidoptera reproductive success floral phases UV reflectance pattern osmophores. Lantana camara xenogamia facultativa Lepidoptera éxito reproductivo fases florales patrón de reflexión UV osmóforos. |
| author |
Amela García, María T. Aquino, Diego Bouza, Agustina Grohar, Mariana C. Herrera Cano, Anahí N. Lafuente Díaz, Maitén Miguez, María B. Scorza, Victoria Chamer, Marina |
| author_facet |
Amela García, María T. Aquino, Diego Bouza, Agustina Grohar, Mariana C. Herrera Cano, Anahí N. Lafuente Díaz, Maitén Miguez, María B. Scorza, Victoria Chamer, Marina |
| author_sort |
Amela García, María T. |
| title |
Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river |
| title_short |
Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river |
| title_full |
Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river |
| title_fullStr |
Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river |
| title_full_unstemmed |
Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river |
| title_sort |
reproductive system and floral biology of lantana camara (verbenaceae) in a riparian population of the río de la plata river |
| 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&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. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2019 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/23578 |
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I10-R325-article-235782019-12-14T13:45:46Z Reproductive system and floral biology of Lantana camara (Verbenaceae) in a riparian population of the Río de la Plata river Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata Amela García, María T. Aquino, Diego Bouza, Agustina Grohar, Mariana C. Herrera Cano, Anahí N. Lafuente Díaz, Maitén Miguez, María B. Scorza, Victoria Chamer, Marina Lantana camara facultative xenogamy Lepidoptera reproductive success floral phases UV reflectance pattern osmophores. Lantana camara xenogamia facultativa Lepidoptera éxito reproductivo fases florales patrón de reflexión UV osmóforos. 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&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. Introducción y objetivos: La biología floral de Lantana camara, nativa del Centro y Sur de América e invasora cosmopolita, tiene aspectos desconocidos y controvertidos. El objetivo de este trabajo fue determinar el sistema reproductivo, atributos florales y polinizadores en una población ribereña del Río de la Plata.M&M: Se emplearon los métodos usuales de la biología de la polinización. El estudio se realizó en Ciudad Autónoma de Buenos Aires, Argentina, en la primavera de 2012.Resultados: Las flores emiten olor leve y dulce mediante osmóforos que rodean la entrada del tubo floral, coincidiendo con el patrón de absorción-reflexión en el espectro UV. El néctar se acumula en el tubo corolino, secretado probablemente por tricomas situados en la base. Durante la antesis, se suceden tres fases florales, distinguibles por cambios en la coloración de la corola, intensidad del aroma, cantidad de recompensa y madurez de las anteras y el estigma. Las flores, psicófilas, recibieron visitas de lepidópteros diurnos, y también de himenópteros, dípteros y colibríes. El mayor éxito reproductivo ocurrió con polinización libre; los índices de autocompatibilidad y P/O indicaron autocompatibilidad parcial y xenogamia facultativa, respectivamente. Conclusiones: L. camara se autopoliniza espontáneamente, probablemente una causa de su propagación global. Debido a su actividad en las flores, fase floral visitada, carga polínica y frecuencia de visitas sólo las mariposas Agraulis vanillae maculosa, Dryas iullia alcionea y Cymaenes sp. polinizarían en este sitio. Sociedad Argentina de Botánica 2019-03-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/23578 10.31055/1851.2372.v54.n1.23578 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 54 No. 1 (2019): March; 29-42 Boletín de la Sociedad Argentina de Botánica; Vol. 54 Núm. 1 (2019): Marzo; 29-42 Boletín de la Sociedad Argentina de Botánica; v. 54 n. 1 (2019): Marzo; 29-42 1851-2372 0373-580X 10.31055/1851.2372.v54.n1 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/23578/23260 https://revistas.unc.edu.ar/index.php/BSAB/article/view/23578/27674 Derechos de autor 2019 Boletín de la Sociedad Argentina de Botánica |