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 66
- Downloads 0
Flower bud differentiation and development characteristics of Camellia gauchowensis Chang
To understand the differentiation of flower bud of Camellia gauchowensis Chang, and to grasp the characteristics of its differentiation, and provide technical support for the regulation and control of the flowering perio...
Effects of nutrient solutions supplemented with sodium selenite on the selenium enriched effect of Lettuce in hydroponics
With Italian lettuce（ Lactuca ativa L. var. ramosa Hort.）， the effect of nutrient solutions supplemented with 0.25， 0.5， 1.0 and 2.0 mg/L different concentrations of sodium selenite on the selenium enriched effect o...
Construction and expression of aiiA with P43 promoter in Bacillus subtilis
Abstract：Some virulence genes in bacterial community would be activated responding to N-acyl-homoserine lactones (AHLs), while Bacillus sp. can express AiiA to degrade the AHLs and thus alleviate the damage of pathogeni...
Effect of Zanthoxylum bungeanum extract and nisin on the preservation of chilled meat
In order to understand the effect of Zanthoxylum bungeanum extract and Nisin on the preservation of chilled meat,study the effect of different concentration of zanthoxylum bungeanum extract and Nisin on the physical and...
Comparative study on seasonal changes in physiological characteristics of three species of Podocarpus
"The seasonal changes in physiological and biochemical of Podocarpus. princess，P. annamiensis and P. macrophyllus were studied in Nanning of Guangxi. The results showed that the physiological and biochemical normal chan...