Pollination of Peltogyne chrysopis: an endemic tree of the Atlantic Forest
| Autor: | Isys Mascarenhas Souza, Ligia Silveira Funch, Luciano Paganucci de Queiroz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Arboreal locomotion Pollination Foraging anthesis Plant Science Biology medicine.disease_cause 010603 evolutionary biology 01 natural sciences melittophily Anthesis Pollinator pollinator efficiency lcsh:Botany Pollen medicine Ecology floral rewards biology.organism_classification lcsh:QK1-989 010602 entomology Xenochlora nigrofemorata compatibility system Leguminosae Pollen tube Peltogyne |
| Zdroj: | Acta Botanica Brasilica, Volume: 32, Issue: 3, Pages: 493-502, Published: SEP 2018 Acta Botânica Brasílica, Vol 32, Iss 3, Pp 493-502 Acta Botanica Brasilica v.32 n.3 2018 Acta Botanica Brasilica Sociedade Botânica do Brasil (SBB) instacron:SBB |
| Popis: | Peltogyne chrysopis is an arboreal legume endemic to the Atlantic Forest and known only from the state of Bahia, Brazil. Focal observations were made of anthesis, pollen availability, stigma receptivity, nectar production, and the presence of osmophores and UV-reflective pigments for the species. Floral visitors were also observed and classified based on the timing and frequency of their visits and their foraging behavior. The breeding system was inferred from the pollen-ovule ratio and pollen tube growth after pollination treatments. Peltogyne chrysopis was found to be melittophilous, with anthesis occurring from 02h00min to 05h00min, and protogynous and xenogamous, with flower scent emission and pollen release before sunrise. Xenochlora nigrofemorata was the main pollinator, as it effectively collected and transferred pollen grains. Nectar production appears to be a secondary resource to ensure the attraction of a diversity of floral visitors and potential pollinators in the absence of effective pollinators. The results of the present study contribute to understanding the pollination mechanisms of Peltogyne, a genus that has been neglected with regard to its reproductive mechanism, and documents, for the first time, the role of the bee genus Xenochlora in plant pollination. |
| Databáze: | OpenAIRE |
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