title: Growth of in vitro Fusarium oxysporum f. sp. niveum in chemically defined media amended with gallic acid.
abstract: 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.
authors.affiliation: College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
authors.forename: Hong-Sheng
authors.initials: HS
authors.lastname: Wu
authors.forename: Yang
authors.initials: Y
authors.lastname: Wang
authors.forename: Chao-Yong
authors.initials: CY
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Bao
authors.forename: Ning
authors.initials: N
authors.lastname: Ling
authors.forename: Dong-Yang
authors.initials: DY
authors.lastname: Liu
authors.forename: Qi-Rong
authors.initials: QR
authors.lastname: Shen
mesh_terms: 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
chemical_list: D003470:Culture Media; D037521:Virulence Factors; D005707:Gallic Acid