Antifungal Activity of Chitosan against Colletotrichum gloeosporioides
Chitosan, derived from chitin by partial Ndeacetylation, has been found to be non-toxic, biocompatible and biodegrable. So chitosan has high economic value and environmental impact. The study mainly compared the antifungal activities with two types of chitosan (W-CS, I-CS). The results indicated that W-CS and I-CS had high antifungal activities against the pathogens caused camellia anthracnose. As W-CS and I-CS concentrations increased from 1 mg·mL-1 to 10 mg·mL-1 antifungal went up significantly. The optimal pH range of chitosan for the highest antifungal activity was 5.3 to 6.0 with tartaric and acetic acid as solvent. The recommend treatment of 2.5 mg·mL-1 W-CS+1％HAC had the inhibition rate of 72.6％, which had almost 500 times effectives than that of thiophanate. Our results should help to develop for a new type of environmental friendly pesticide.
water-soluble chitosan insect chitosan colletotrichum gloeosporioide antifungal activity inhibition rate
Liu Jun-ang Jin Aixian Zhou Guoying He Yuanhao
Biotechonology Core Facilities Central South University of Forestry and Technology Changsha,Hunan,Ch College of Forestry Central South University of Forestry and Technology Changsha,Hunan,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）