| Title: | "Effects of UV-B radiation on secondary metabolite production, antioxidant activity, photosynthesis and herbivory interactions in Nymphoides humboldtiana (Menyanthaceae)" |
| Author(s): | Nocchi N; Duarte HM; Pereira RC; Konno TUP; Soares AR; |
| Address: | "Instituto Universitario de Bio-Organica Antonio Gonzalez (IUBO AG), Departamento de Quimica Organica, Universidad de La Laguna (ULL), Avda. Astrofisico F. Sanchez 2, 38206 La Laguna, Tenerife, Spain; Programa de Pos-Graduacao em Ciencias Ambientais e Conservacao (PPGCiaC), Universidade Federal do Rio de Janeiro (UFRJ) - Macae, Rio de Janeiro, Brazil; Grupo de Produtos Naturais de Organismos Aquaticos, Instituto de Biodiversidade e Sustentabilidade e Desenvolvimento Socioambiental de Macae (NUPEM), UFRJ, Av. Sao Jose do Barreto 764 - Sao Jose do Barreto, 27965-045 Macae, Rio de Janeiro, Brazil. Programa de Pos-Graduacao em Ciencias Ambientais e Conservacao (PPGCiaC), Universidade Federal do Rio de Janeiro (UFRJ) - Macae, Rio de Janeiro, Brazil; Grupo de Produtos Naturais de Organismos Aquaticos, Instituto de Biodiversidade e Sustentabilidade e Desenvolvimento Socioambiental de Macae (NUPEM), UFRJ, Av. Sao Jose do Barreto 764 - Sao Jose do Barreto, 27965-045 Macae, Rio de Janeiro, Brazil. Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense (UFF), P.O. Box 100.644, 24001-970 Niteroi, Rio de Janeiro, Brazil; Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, Rio de Janeiro, Brazil. Programa de Pos-Graduacao em Ciencias Ambientais e Conservacao (PPGCiaC), Universidade Federal do Rio de Janeiro (UFRJ) - Macae, Rio de Janeiro, Brazil; Grupo de Produtos Naturais de Organismos Aquaticos, Instituto de Biodiversidade e Sustentabilidade e Desenvolvimento Socioambiental de Macae (NUPEM), UFRJ, Av. Sao Jose do Barreto 764 - Sao Jose do Barreto, 27965-045 Macae, Rio de Janeiro, Brazil. Electronic address: angelica@iq.ufrj.br" |
| DOI: | 10.1016/j.jphotobiol.2020.112021 |
| ISSN/ISBN: | 1873-2682 (Electronic) 1011-1344 (Linking) |
| Abstract: | "Ultraviolet B-light (UV-B) can exert indirect effects on plant-herbivore interactions by inducing changes in constitutive and induced chemical defenses, since it modulates physiological aspects of plants. This study evaluated the action of UV-B radiation on photosynthesis and production of secondary metabolites in Nymphoides humboldtiana and the cascade effects on the relationship of this macrophyte with a generalist herbivore, the gastropod mollusk Biomphalaria glabrata. After 13 days of UV-B exposition under laboratory conditions, the floating macrophyte N. humboldtiana responded increasing its photosynthetic potential and the production of flavonoids with a correlated enhance in antioxidant activity. However, these changes observed in its metabolism were not enough to alter their palatability to consumption by B. glabrata verified through laboratory feeding choice experiments. Despite the known deleterious effects of exposure to UV-B on terrestrial plants, we found that N. humboldtiana does have physiological/biochemical mechanisms as a strategy or restorative response to this potencially adverse or impacting agent without changing its relationships with herbivores" |
| Keywords: | Animals Chlorophyll A/metabolism Herbivory/*radiation effects Magnoliopsida/*metabolism/*radiation effects Mollusca/physiology Organothiophosphorus Compounds/*metabolism Photosynthesis/*radiation effects *Ultraviolet Rays Anti-herbivore defense Antioxidan; |
| Notes: | "MedlineNocchi, Nathalia Duarte, Heitor Monteiro Pereira, Renato Crespo Konno, Tatiana Ungaretti Paleo Soares, Angelica Ribeiro eng Switzerland 2020/09/22 J Photochem Photobiol B. 2020 Nov; 212:112021. doi: 10.1016/j.jphotobiol.2020.112021. Epub 2020 Sep 10" |
