Bioactive saponin from tea seed pomace with inhibitory effects against Rhizoctonia solani.
The present study was aimed to characterize the antifungal principles in methanol extract of tea ( Camellia oleifera ) seed pomace. Totally, two flavonoids, camelliasides A (1) and B (2), and one saponin mixture composed of camelliasaponin B(1) (3) were identified from the methanol extract. These constituents were tested for their ability to reduce the infection of cabbage seedlings by Rhizoctonia solani Kuhn AG-4 and to inhibit growth of the pathogen on potato dextrose agar plates. The saponin mixture is a potential candidate as a new plant-derived pesticide to control Rhizoctonia damping-off of vegetable seedlings.
Kuo
Ping-Chung
PC
Department of Biotechnology, National Formosa University, Yunlin 632, Taiwan.
Lin
Tsung-Chun
TC
Yang
Cheng-Wei
CW
Lin
Chih-Lung
CL
Chen
Guo-Feng
GF
Huang
Jenn-Wen
JW
D001937:Brassica / Q000382:microbiology*; D028244:Camellia / Q000737:chemistry*; D010935:Plant Diseases / Q000382:microbiology*; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology*; D012232:Rhizoctonia / Q000187:drug effects* / Q000254:growth & development; D012503:Saponins / Q000302:isolation & purification / Q000494:pharmacology*; D012639:Seeds / Q000737:chemistry
D010936:Plant Extracts; D012503:Saponins