Diversidade florística de Dioscoreaceae na Reserva Biológica do Alto da Serra de Paranapiacaba, Santo André, São Paulo, Brasil

Kirizawa, Mizué; Xifreda, Cecilia Carmen; Silva, Jonathan Henrique da

doi:10.1590/2236-8906-55/2015

Cited by 2 publications

(1 citation statement)

References 9 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This Plant genus belongs to the family Dioscoreaceae, one of the major members of angiosperms (flowering plants). Plants of the order, Dioscoreales are found in temperate and tropical regions worldwide, with the highest diversity being in the seasonally dry tropics of Central South America (Kirizawa et al, 2010), the Caribbean (Raz, 2004), South Africa (Knuth, 1924), and Madagascar (Burkill andPerrier, 1950, Wilkin andThapyai, 2009). Dioscorea is of high value but underutilized (Siqueira, 2011).…”

Section: Introductionmentioning

confidence: 99%

Developmental Ultrastrutcture Microscopy in Drug Discovery From Dioscorea Species

Odimegwu

Sangwan

Chanotiya

et al. 2023

Preprint

View full text Add to dashboard Cite

Tubers of wild Dioscorea species (yam) are used as low-cost materials for the synthesis of steroids, cortisone and progesterone using the Marker Degradation chemical route. Decoctions from yam leaves and tubers are also used in ethnomedicine for regulating female fertility and alleviating painful periods and menopausal symptoms. It is now known that yam tuber extracts reduce and inhibit the proliferative action of breast cancer cells and reverse some cardiovascular diseases. Due to current urgent needs and global interest in plants biodiversity advancement and drug discovery importance: Dioscorea composita and Dioscorea floribunda shoots were studied with Scanning Electron Microscopy (SEM) to detect anatomical types of trichomes compared to essential oil production as integrated into the ontogeny of the studied shoots and hydro-distilled oils from the same organs were characterized with Gas Chromatography/Mass Spectrometry (GC/MS). The SEM study revealed the presence of oil glands, the capitate type on the epidermal layers of parts studied which GC/MS analysis further revealed the components of the oils on the leaves to be Farnesene, Citronellyl acetate, Terpinene, Elemol, Nerolidol, Farnesol and Valerenyl acetate. This is the first time these phytoconstituents are reported in the species. In this light, microscopical methods supported by chromatography contribute to the rapid identification of novel lead compounds contributing to important drug discovery.

show abstract

Section: Introductionmentioning

confidence: 99%