Aim:To analyze the effective methods of antibiotic ointment to control bacterial growth,and to provide references for the research work of related personnel.Method:In this experiment,membrane filtration method combine...Aim:To analyze the effective methods of antibiotic ointment to control bacterial growth,and to provide references for the research work of related personnel.Method:In this experiment,membrane filtration method combined with centrifugal precipitation method was used to complete the inspection of antibiotic ointment,and the final result was analyzed.Results:The application of membrane filtration method combined with centrifugal precipitation method to complete the test of antibiotic ointment has a significant effect.The test solution is milky white.The possibility if it can exert the effect of eliminating antibacterial components,so that Pseudomonas aeruginosa and Staphylococcus caureus can show an affecting state in the positive test tube,and colonies can be found after observation.Conclusion:The application of membrane filtration method combined with centrifugal precipitation method to complete the inspection of antibiotic ointment can achieve satisfactory results.The method is simple to operate and has high feasibility.It is worthy of further promotion and application.展开更多
Blackleg disease caused by Phoma lingam is an important disease of oil seed rape (Brassica napus) causing losses up to 95%. The efficacy of microbial antagonists against P. lingam in greenhouse was tested. Serratia pl...Blackleg disease caused by Phoma lingam is an important disease of oil seed rape (Brassica napus) causing losses up to 95%. The efficacy of microbial antagonists against P. lingam in greenhouse was tested. Serratia plymuthica HRO-C48 and Gliocladium catenulatum J1446 were able to reduce the disease intensity of OSR cotelydones infested with P. lingam at rates 44% and 52% respectively. The reduction of the infestation of the root collar in BBCH14/15 was evaluated as well. Plants treated with a suspension of the antagonists (2 × 105 cfu/plant) and inoculated with either pycnidiospore suspension (2 × 107 cfu/ml) or agar disks grown with P. lingam mycelium, showed a reduced infestation rate of 53% - 93% in the presence of S. plymuthica and 46% - 77% in the presence of G. catenulatum. The efficacy of the antagonist depends highly on their concentration inside OSR seeds. Below 105 cfu/seed no significant difference was recorded between control untreated and infested plants.展开更多
文摘Aim:To analyze the effective methods of antibiotic ointment to control bacterial growth,and to provide references for the research work of related personnel.Method:In this experiment,membrane filtration method combined with centrifugal precipitation method was used to complete the inspection of antibiotic ointment,and the final result was analyzed.Results:The application of membrane filtration method combined with centrifugal precipitation method to complete the test of antibiotic ointment has a significant effect.The test solution is milky white.The possibility if it can exert the effect of eliminating antibacterial components,so that Pseudomonas aeruginosa and Staphylococcus caureus can show an affecting state in the positive test tube,and colonies can be found after observation.Conclusion:The application of membrane filtration method combined with centrifugal precipitation method to complete the inspection of antibiotic ointment can achieve satisfactory results.The method is simple to operate and has high feasibility.It is worthy of further promotion and application.
文摘Blackleg disease caused by Phoma lingam is an important disease of oil seed rape (Brassica napus) causing losses up to 95%. The efficacy of microbial antagonists against P. lingam in greenhouse was tested. Serratia plymuthica HRO-C48 and Gliocladium catenulatum J1446 were able to reduce the disease intensity of OSR cotelydones infested with P. lingam at rates 44% and 52% respectively. The reduction of the infestation of the root collar in BBCH14/15 was evaluated as well. Plants treated with a suspension of the antagonists (2 × 105 cfu/plant) and inoculated with either pycnidiospore suspension (2 × 107 cfu/ml) or agar disks grown with P. lingam mycelium, showed a reduced infestation rate of 53% - 93% in the presence of S. plymuthica and 46% - 77% in the presence of G. catenulatum. The efficacy of the antagonist depends highly on their concentration inside OSR seeds. Below 105 cfu/seed no significant difference was recorded between control untreated and infested plants.
