Title: Biodegradation of benzoic acid and p-hydroxybenzoic acid in the strawberry planting soil by two strains of actinomyces.
Abstract:【Objective】 Benzoic acid and p-hydroxybenzoic acid are the two main autotoxins produced by strawberry in soil.The experiment was to study the degradation effect on the two acids by two strains of acti...【Objective】 Benzoic acid and p-hydroxybenzoic acid are the two main autotoxins produced by strawberry in soil.The experiment was to study the degradation effect on the two acids by two strains of actinomyces.【Method】 Two strains of actinomyces,Act11 and Act12,which can promote the growth of strawberries,were taken as study materials.Certain amounts of actinomyces were inoculated into the soil which contained benzoic acid and p-hydroxybenzoic acid.The relative degradation rates of the two acids by the actinomyces were measured regularly after 15 days' incubation under field conditions.【Result】 ①Both the two actinomyces had a high ability to degrade benzoic acid and p-hydroxybenzoic acid in soil under field conditions.After 150 days' incubation,the degradation amounts of benzoic acid by Act11 and Act12 were in the range of 700-888 mg/kg and 747-867 mg/kg,respectively.Correspondingly,94-218 mg/kg of p-hydroxybenzoic acid was degraded by Act11 and 117-118 mg/kg by Act12.②The effects of organic matter on the degradation rate of the two phenolic acids were different.There was no significant influence on the relative degradation rates of benzoic acid,while the relative degradation rates of p-hydroxybenzoic acid significantly increased in the Act11 treatment of the 15th,60th,150th day and in the Act12 treatment of the 60th day(P0.05).③Both the average degradation velocities of benzoic acid and p-hydroxybenzoic acid in the inoculated treatment were higher than those in CK treatment.【Conclusion】 Both actinomyces are able to degrade benzoic acid and p-hydroxybenzoic acid in soil.Organic matter added into the soil can increase the degradation rate of p-hydroxybenzoic acid.Read More
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 1
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot