Biogenetic Conversion of Wyerone and Dihydrowyerone into Wyerone Epoxide in Vicia faba Cotyledons and Screening of Antibacterial Activity

Table 4

Mean zones of inhibition in (mm), , for the three phytoalexins and amoxicillin (positive control) tested against different bacterial genera.

	Gram stain	Pathogenicity	Wyerone	Wyerone acid	Wyerone epoxide	Amoxicillin
Bacillus cereus ATCC 14579	Positive	Human	16	16	15	25
Bacillus megaterium ATCC 14581	Positive	Saprophyte	13	12	12	25
Curtobacterium flaccumfaciens pathovar oortii (Corynebacterium oorti) ATCC 25283	Positive	Plant	16	15	16	34
Klebsiella pneumoniae ATCC 13883	Negative	Human	0	0	0	23
Micrococcus luteus ATCC 49732	Positive	Human	15	14	15	33
Pseudomonas syringae pathovar phaseolicola (Pseudomonas phaseolicola) ATCC 19304	Negative	Plant	0	0	0	20
Rhodococcus fascians ATCC 12974	Positive	Plant	16	15	15	33