[Pathogenicity of fungi isolated from American ginseng seeds and bioassay of fungicides against the pathogenic fungi].
OBJECTIVE
Detect the pathogenicity of fungi isolated from American ginseng seeds and select new fungicides against the pathogenic seed-born fungi.


METHODS
inoculate the isolates to American ginseng seedlings to detect the pathogenicity, and seeded the hyphae disk at the center of agar plate containing chemicals to do fungicide bioassay.


RESULTS
Fusarium sp. isolate 5 and Alternara sp. isolate 13 had pathogenicity to American ginseng seedling. Sportak had the strongest inhibition to the two isolates, Carbendazim had better inhibition and Celest had weak inhibition.


CONCLUSIONS
Sportak and Celest could be used as efficacious candidate chemicals to treat or coat the American ginseng seeds, and substitute Carbendazim, which has been used for many years, to control the diseases occurring in seedling stage of American ginseng.
Zhang
Guo-zhen
GZ
Department of Plant Pathology, China Agricultural University, Beijing 100094, China. zhangcau@yahoo.com.cn
Zhang
Shu-feng
SF
D000528:Alternaria / Q000187:drug effects / Q000302:isolation & purification*; D001562:Benzimidazoles / Q000494:pharmacology; D002219:Carbamates / Q000494:pharmacology; D005659:Fungicides, Industrial / Q000494:pharmacology*; D005670:Fusarium / Q000187:drug effects / Q000302:isolation & purification*; D005894:Panax / Q000254:growth & development / Q000382:microbiology*; D010946:Plants, Medicinal / Q000254:growth & development / Q000382:microbiology*; D036226:Seedlings / Q000254:growth & development / Q000382:microbiology; D012639:Seeds / Q000254:growth & development / Q000382:microbiology
D001562:Benzimidazoles; D002219:Carbamates; D005659:Fungicides, Industrial; C006698:carbendazim