Study of Biological Characteristics of Bio-control Endophytic Fungi from Eriobotrya japonica

ZENG Long-gang;LU Hai-ju;LU Ning-qiang;PAN Liu-jun;ZHENG Xiao-lan;Department of Life Science and Technology , Honghe College;Yunnan Pingbian Plant Protecting Station;Chinese Academy of Tropical Agriculture Sciences Environment and Plant Protection Institute;

Eriobotrya japonica;;endogenetic fungus;;fruit dry rot of pomegranate;;biological characteristics

The effects of medium, carbon and nitrogen source, p H, temperature and illumination were tested by mycelium growth rate for 6 Eriobotrya japonica endophyte strains significantly antagonized pathogen of fruit dry rot of pomegranate. The results showed that the proper growth medium of PGSC8 strain was PDA. PGSC9 strain was PDA and CA. The other 4strains was PSA. In the tested carbon sources, the proper carbon source of 2 strains including PGSC5 and PGSC6 was the maltose. The other 4 strains was the soluble starch. In the tested nitrogen sources, the proper nitrogen source of 2 strains including PGSC6 and PGSC9 was the beef extract, and PGSC7 strain was the yeast extract and the beef extract. The other 3strains was the peptone. And the proper p H of all the tested strains was neutral or alkaline, the proper temperature of PGSC7 was 25 ℃. The other 5 strains was 30 ℃.