RT journal article
T1 Steroidal Saponins with Plant Growth Stimulation Effects; Yucca schidigera as a Commercial Source
A1 García Durán, Alexandra
A1 Butrón, Davinia
A1 Pérez, Andy J.
A1 Macías Domínguez, Francisco Antonio
A1 Simonet Morales, Ana María
A1 Calle, Juan M.
A2 Química Orgánica
K1 Agave
K1 Yucca schidigera
K1 steroidal saponin
K1 plant growth stimulation
K1 hormesis
K1 wheat coleoptile bioassay
K1 agameroside I
AB Plant growth-stimulation bioactivity of triterpenoid saponins is well known, especially for oleanane-type compounds. Nevertheless, a few phytotoxicity bioassays performed on some steroidal saponins have shown hormesis profiles and growth stimulation on Lactuca sativa roots. The focus of the work described here was on the use of the wheat coleoptile bioassay to evaluate plant growth stimulation, and on the search for a commercially available source of active saponins by bio-guided fractionation strategy. Selected saponins were tested and a cluster analysis showed that those saponins with a sugar chain of more than five units had a hormesis profile, while saponins with growth enhancement had fewer sugar residues. Two saponins showed similar activity to the positive control, namely the phytohormone indole-3-butyric acid (IBA). As a potential source of these metabolites, a commercial extract of Yucca schidigera used as a fertilizer was selected. Bio-guided fractionation led to the identification of two fractions of defined composition and these showed stimulation values similar to the positive control. It was observed that the presence of a carbonyl group at C-12 on the aglycone skeleton led to improved activity. A saponin-rich fraction from Y. schidigera could be proposed to enhance crop quality and production.
PB MDPI
SN 2223-7747
YR 2022
FD 2022-12-05
LK http://hdl.handle.net/10498/29352
UL http://hdl.handle.net/10498/29352
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026