Medicagenic acid content in foliage of ten varieties of alfalfa (Medicago sativaL) cultivated in Mexico
✍ Scribed by Pérez, Norma; Peña, Silvia; Vega, Salvador; Noa, Mario; Enríquez, Raúl
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 185 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0022-5142
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✦ Synopsis
Medicagenic acid (MA) content was studied in four Mexican, one Spanish and Ðve USA cultivars of alfalfa (Medicago sativa L) using highperformance liquid chromatography (HPLC) and two bioassays : T richoderma viride inhibition and ichthyotoxic activity. The MA contents (g kg~1), measured through HPLC, for the 10 varieties were : Valenciana \ 0É165 ; Inia 76 \ 0É115 ; Puebla 76 \ 0É097 ; Synthetic I \ 0É042 ; Pierce \ 0É031 ; Maxidor \ 0É027 ; Condor \ 0É024 ; Synthetic II \ 0É023 ; Sundor \ 0É023 ; NK-819 \ 0É013. These data conÐrm the inÑuence of the variety in MA contents. Fungitoxic and ichthyotoxic assays showed that the Spanish cultivar (Valenciana) presented the highest toxicity. The biological activity of the ten varieties was strongly correlated (r \ 0É97) to medicagenic acid content measured through HPLC.