Growth of in vitro Fusarium oxysporum f. sp. niveum in chemically defined media amended with gallic acid.
Gallic acid was artificially added to the media to grow Fusarium oxysporum f.sp.niveum to investigate its effect on the pathogenic fungus. Results indicate that gallic acid inhibited the growth of F. oxysporum f.sp.niveum. The colony diameter, the conidia germinating rate and the conidia yield were reduced by 5.7-22.9%%, 35.8-55.6% and 38.9-62.2% respectively. However, the virulence factors by the fungus were stimulated. The activity of pectinase, proteinase and cellulase increased by 12.3-627.8%, 11.8-41.2% and 0.5-325.0% respectively, while the activity of amylase increased slightly. The results suggest that gallic acid repressed growth but facilitated the relative pathogenicity of invading pathogens.
Wu
Hong-Sheng
HS
College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
Wang
Yang
Y
Zhang
Chao-Yong
CY
Bao
Wei
W
Ling
Ning
N
Liu
Dong-Yang
DY
Shen
Qi-Rong
QR
D015169:Colony Count, Microbial; D003470:Culture Media / Q000737:chemistry / Q000494:pharmacology*; D005670:Fusarium / Q000187:drug effects* / Q000254:growth & development / Q000472:pathogenicity; D005707:Gallic Acid / Q000494:pharmacology*; D013172:Spores, Fungal / Q000187:drug effects* / Q000254:growth & development / Q000472:pathogenicity; D037521:Virulence Factors
D003470:Culture Media; D037521:Virulence Factors; D005707:Gallic Acid