[Testing of seed-borne fungi of Glycyrrihiza seed and disinfection effect of several fungicides on seed-borne fungi].
OBJECTIVE
To study the dominant seed-borne fungi of Glycyrrihiza seeds which were from different producing area and compare the disinfection effect of several fungicides on seed-borne fungi of Glycyrrihiza seed.


METHODS
Petri-dish testing was used to determine the external and internal seed-borne fungi and the disinfection effect of fungicides.


CONCLUSIONS
The result showed that the amount of spore on the surface of one Glycyrrihiza seed varied from 0.3% to 37.0% among samples. Penicillium spp. and Aspergillus spp. were the two major dominant fungi and there was few differences in the type of the fungi among producing areas but differences in the isolation frequency of the furgi; Penicillium spp. , Rhizopus spp. , Aspergillus spp. and Alternaria spp. were the internally dominant seed-borne fungi, including seed capsule and the internal tissue of seed and their fungi-carrying percentage was 8.0%-48.3% and 3.5%-42.0% respectively. There were differences in fungi percentage and dominant seed borne fungi among different producing areas. The disinfection effect of both mancozeb and thriam was up to 89.0%, so it is suggested to use them to disinfect Glycyrrihiza seed.
Dan
Hong-Mei
HM
Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medicine Science, Beijing 100094, China.
Li
Jing
J
Li
Xian-En
XE
Li
Jian-Qiang
JQ
D001230:Aspergillus / Q000187:drug effects / Q000302:isolation & purification*; D005659:Fungicides, Industrial / Q000494:pharmacology*; D029882:Glycyrrhiza uralensis / Q000382:microbiology*; D008344:Maneb / Q000494:pharmacology; D010407:Penicillium / Q000187:drug effects / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000382:microbiology*; D012233:Rhizopus / Q000187:drug effects / Q000302:isolation & purification; D012639:Seeds / Q000382:microbiology; D015038:Zineb / Q000494:pharmacology
D005659:Fungicides, Industrial; D008344:Maneb; C013099:mancozeb; D015038:Zineb