Screening of the agents and antagonistic bacteria to Pectobacterium carotovorum subsp. brasiliense
Journal Title: 广东农业科学 - Year 2018, Vol 45, Issue 12
Abstract
"Bacterial soft rot of potato, caused by Pectobacterium carotovorum subsp. brasiliense（Pcb）, is one of the most important diseases in the world. It is widespread and serious in potato producing areas in China and usually causes huge economic losses. Little investigation has been done on applications of chemical and biological control to the disease in China. In this study, Pcb was used as the indicator bacteria against nine kinds of chemical agents to develop effective chemicals on the plate experiment. Four kinds of chemicals, including Wanshengqing（20% bromothalonil + 5% cuppric nonyl phenolsulfonate）, gramcazole （3% zhongshengmycin）, octyl amine acetate and Kecocon（1.5% thiazolone）have acquired good antibacterial effect on Pcb respectively. Further investigation showed that five antagonistic bacterial strains which were isolated from soils have good bacteriostatic activities to Pcb and were preliminarily identified as Pantoea ananatis, Serratia marcescens, Pseudomonas plecoglossicida and Staphylococcus sciuri by 16S rDNA, respectively. The antagonistic bacterial strain of RFjk2 which was identified as Serratia marcescens showed a potential application on biological control of potato soft rot. The results would lay the foundation for the chemical and biological control to bacterial soft rot of potato. "
Authors and Affiliations
Di-nan FENG, Qiong-guang LIU
Keywords
Related Articles
- EP ID EP602709
- DOI 10.16768/j.issn.1004-874X.2018.12.012
- Views 61
- Downloads 0
Effects of seed priming on Lycium barbarum seed germination under salt stress
"Lycium barbarum is a kind of representative perennial shrub with drought and salinity tolerance， and it often grows in desert of China's northwest. Seeds of Ningqi No.1 were primed with 100 mmol/L NaCl. Using petri dis...
Study on the relationship between characteristics of bleeding sap and yield in restorerline Xikehui 768
"To investigate the relationships between intensity，composition of bleading sap and yields of the Xikehui 768，two Xikehui 768 cultivars were used as experiment materials，and Yixiang You 2115 was used as control. The r...
Protein requirement of Wenchang caponized chickens
"The experiment was conducted to study the protein requirement of wenchang caponized chickens. A total of 96，healthy and similar Wenchang caponized chickens which is 75-day-old were randomly divided into 4 treatment gro...
Research on phytotoxicity control of tobacco herbicides residues
"Tobacco is more sensitive to herbicides and express phytotoxicity symptoms such as dwarfing, growth retardation, malformation and yellowing of old leaves with widespread application of herbicides, which affect tobacco q...
Effects of different types of livestock manure on pepper yield and enzyme activities in rhizosphere soils
The changes of the dynamic characteristics of“Long Jiao No.3” yield and rhizosphere soils enzyme activities in different growth stages under different amount (0, 15, 30, 45，60 t/hm2，FW) and types livestock manure (chic...