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dc.contributor.author
De Egea Elsam, Juana
dc.contributor.author
Amela Garcia, Maria Teresa
dc.date.available
2024-07-15T16:10:21Z
dc.date.issued
2023-05
dc.identifier.citation
De Egea Elsam, Juana; Amela Garcia, Maria Teresa; Biología floral, sistema reproductivo y visitantes florales de Vitex cymosa (Lamiaceae); Instituto de Botánica Darwinion; Darwiniana. Nueva serie; 11; 1; 5-2023; 246-264
dc.identifier.issn
0011-6793
dc.identifier.uri
http://hdl.handle.net/11336/239970
dc.description.abstract
Vitex cymosa Bert. ex Spreng. (Lamiaceae) is a native species of tropical and subtropical Central and South America. Its medicinal, antioxidant, antifungal and antibacterial properties are noteworthy and widely studied. This study aims to contribute towards the knowledge of the reproductive biology of V. cymosa, through: the determination of the reproductive system; the description of reproductive morphological attributes (flower, fruit, pollen and nectary), attractants and floral phases, as well as the record and function of floral visitors. Vitex cymosa presents melitophilic floral traits: diurnal anthesis, bluish coloration, bilabiate structural type, presence of visual guides in the corolla indicating the location of the reward (nectar), and a soft, sweet and pleasant aroma to humans. The pollen has pollenkit and is deposited nototribically on the pollinators. The nectary is of gynoecial origin, the nectar is released through nectarostomes located on the apex of the ovary, remaining available even after corolla abscition, as a post-floral nectary; such zone is distinguished by a purple coloration, different from that of the rest of this organ, which grows basipetally as the fruit develops. The reproductive system of V. cymosa is mixed, resulting in more than 75% of fructification, through both allogamy mediated by pollinators and spontaneous self-pollination, presenting a slight hercogamy that would contribute to cross-pollination. Eleven species of floral visitors were recorded, all belonging to the Class Insecta. Among these floral visitors, Apis mellifera was the most frequent species, and along with other species of native bees (of the genera Bombus, Centris, Plebeia, Tetragonisca, Trigona), wasps and butterflies, they would be pollinators when they visit legitimately (in the case of the hymenopterans, as some of them thieve pollen). Despite this visitor assembly, the most important pollinators are the bees, which coincides with the melitophilic characteristics of the flowers. The nectar exposed in flowers where the corolla has already fallen, more accessible to some bees and to the wasps, would contribute to greater attraction to pollinators, as well as predatory insects of herbivores of the developing fruits.
dc.format
application/pdf
dc.language.iso
spa
dc.publisher
Instituto de Botánica Darwinion
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ATRACTIVOS FLORALES
dc.subject
MICROMORFOLOGIA FLORAL
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NECTARIO FLORAL Y POSTFLORAL
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VISITANTES FLORALES
dc.subject.classification
Ciencias de las Plantas, Botánica
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Biología floral, sistema reproductivo y visitantes florales de Vitex cymosa (Lamiaceae)
dc.title
Floral biology, reproductive system and floral visitors of Vitex cymosa (Lamiaceae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-07-15T14:16:23Z
dc.journal.volume
11
dc.journal.number
1
dc.journal.pagination
246-264
dc.journal.pais
Argentina
dc.journal.ciudad
Buenos Aires
dc.description.fil
Fil: De Egea Elsam, Juana. Consejo Nacional de Ciencia y Tecnología; Paraguay. Universidad Nacional de Asunción; Paraguay. Centro para el Desarrollo de la Investigación Científica; Paraguay
dc.description.fil
Fil: Amela Garcia, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina
dc.journal.title
Darwiniana. Nueva serie
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.ojs.darwin.edu.ar/index.php/darwiniana
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.14522/darwiniana.2023.111.1096
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