In:
Canadian Journal of Botany, Canadian Science Publishing, Vol. 66, No. 9 ( 1988-09-01), p. 1901-1903
Abstract:
Four phenolic compounds, viz., apigenin, apigenin-7-O-glucoside, echinacin, and echinaticin, were isolated from the whole plant of Echinops echinatus Roxb.; the latter two compounds were isolated for the first time. The two derivatives echinacin permethyl ether and apigenin-5,4′-dimethyl ether were obtained by methylation of echinacin and apigenin-7-O-glucoside permethylate, respectively. All the compounds were assayed against germination of conidia of Alternaria tenuissima (Kunz. ex Pers.) Wiltshire, which incites leaf blight disease in pigeon pea (Cajanus cajan (L.) Millsp.). All showed high efficacy against the pathogen at concentrations ranging from 25 to 150 μg mL −1 . Echinacin, which was highly effective at 150 μg mL −1 , is considered the most promising of these compounds and its use as a control measure against Alternaria blight of pigeon pea under field conditions has been suggested.
Type of Medium:
Online Resource
ISSN:
0008-4026
Language:
French
Publisher:
Canadian Science Publishing
Publication Date:
1988
detail.hit.zdb_id:
218116-2
detail.hit.zdb_id:
1481926-0
SSG:
12
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