The Effects of Adding secondary metabolites of Aspergillus niger on Desease Resistance to Root-knot Nematode of Tomato
LI Song1，DUAN Yu-xi1， ZHU Xiao-feng1，CHEN Li-jie1，WANG Yuan-yuan2
1College of Plant Protection， Northern China Institute of Nematology，Shenyang Agricultural University , 2Biological Science and Technology，Shenyang Agricultural University ,Shenyang ，110866, China
Abstract：In order to define the secondary metabolites of Aspergillus niger. to tomatoes root-knot nematode (Meloidogyne incognita.) disease prevention effect and the change of defense enzyme activity ,application of various concentrations of secondary metabolites of A niger. to root-knot nematode disease in tomato were studied in greenhouse. And the research on effects of secondary metabolites on several defense enzymes in tomato was investigated. The results showed that the secondary metabolites of A. niger. reduced the root-knot index and nematode populations，meanwhile promoted tomato plant growth compared with untreated control. The activities of defense enzymes enhanced significantly, such as phenylalanine ammonia (PAL), polyphenol oxidas (PPO), peroxidase (POD), superoxide (SOD) and catalase (CAT). It indicated that the secondary metabolites of A. niger. could markedly induce the resistance of tomato to root-knot nematode and have great potential in biocontrol.
李颂;段玉玺;朱晓峰;陈立杰;王媛媛;潘琳琳. 黑曲霉次生代谢产物对番茄抗根结线虫病效果的影响[J]. 中国蔬菜, 2011, 1(4): 44-49.
LI Song;DUAN Yu-xi;ZHU Xiao-feng;CHEN Li-jie;WANG Yuan-yuan. The Effects of Adding secondary metabolites of Aspergillus niger on Desease Resistance to Root-knot Nematode of Tomato. , 2011, 1(4): 44-49.
