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Four new species of Capsicum (Solanaceae) from the tropical Andes and an update on the phylogeny of the genus
- G. Barboza, C. Carrizo García, Segundo Leiva González, M. Scaldaferro, X. Reyes
- Medicine, BiologyPloS one
- 16 January 2019
Four new species of Capsicum from Andean tropical forests in South America are described and three of the new species were included in a new phylogenetic analysis for Capsicum; their positions were strongly resolved within clades previously recognized in the genus.
Withanolides with antibacterial activity from Nicandra john-tyleriana.
- Fátima Gutiérrez Nicolás, G. Reyes, +4 authors Viviana E. Nicotra
- Medicine, BiologyJournal of natural products
- 10 February 2015
Eleven new withanolides were isolated and characterized from the aerial parts of Nicandra john-tyleriana and all compounds were evaluated for their antibacterial activity against Bacillus, Enterococcus, Escherichia, Listeria, Pseudomonas, and Staphylococcus strains.
Unraveling the phylogenetic relationships of Nectouxia (Solanaceae): its position relative to Salpichroa
- C. Carrizo García, Ana V Basso, Segundo Leiva González, P. Gonzáles, G. Barboza
- BiologyPlant Systematics and Evolution
- 1 February 2018
A comprehensive phylogenetic analysis including Nectouxia and all Salpichroa species was carried out to shed light on the relationship between the two genera, and indicates that the two genus should be combined into a single genus or Salpicroa will be paraphyletic as currently circumscribed.
Phytochemical Study of the Genus Salpichroa (Solanaceae), Chemotaxonomic Considerations, and Biological Evaluation in Prostate and Breast Cancer Cells
- Ana V Basso, Segundo Leiva González, +4 authors Viviana E. Nicotra
- Biology, MedicineChemistry & biodiversity
- 1 August 2017
The in vitro cytotoxic activity of a set of natural salpichrolides and derivatives was examined against two prostate carcinoma cell lines and two human breast cancer cell lines, which suggest that Salpichroa and Jaborosa, a genus considered morphologically close to Salpicroa, are distant in the systematic of the Solanoideae subfamily.
Two new Peruvian species of Jaltomata (Solanaceae, Solaneae) with red floral nectar
Two new Jaltomata species (Solanaceae) of Peru that produce red floral nectar are described, which allow comparison with closely related species.
Breeding system features and a novel method for locating floral nectar secretion in a South American nightshade (Jaltomata quipuscoae)
- T. Mione, J. Kostyun, Segundo Leiva González
- BiologyPlant Biosystems - An International Journal…
- 2 January 2020
Jaltomata quipuscoae, a wild plant that grows in southern Peru and produces copious, red floral nectar, is studied, demonstrating lack of autogamy, but self-compatibility was demonstrated by manual self-pollinations leading to fruit-set.