Serratia marcescens strain and application thereof

A Serratia marcescens, plant technology, applied in the field of microorganisms, to achieve good adsorption effect and good control effect
CN104946554AActive Publication Date: 2015-09-30天津沃太生物科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
天津沃太生物科技有限公司
Publication Date
2015-09-30

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Abstract

The invention relates to a Serratia marcescens strain of which the collection number in China General Microbiological Culture Collection Center is CGMCC No.10711. The strain Sa is separated from soil. The strain Sa is identified to be Serratia marcescens through the observation on morphological features of the strain Sa, analysis on physiological biochemical characteristics and homology analysis on the 16Sr DNA (deoxyribonucleic acid) sequence. The Serratia marcescens strain provided by the invention has favorable control effect on blight of plants. The Serratia marcescens strain can be colonized in plant seedlings, and has obvious growth promoting actions on the seedlings. Besides, the determination of concentration changes of Pb<2+> in the culture medium by an atomic absorptiometry indicates that the Serratia marcescens strain can adsorb Pb<2+> in the culture medium and has favorable adsorbing effect.
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Description

technical field

[0001] The invention relates to the field of microbes, and more specifically to a Serratia marcescens capable of promoting growth and bioremediating soil and its application. Background technique

[0002] Plant Growth Promoting Rhizobacteria (PGPR) refers to a class of bacteria living freely in the soil or attached to plant roots that can promote plant growth and its absorption and utilization of mineral nutrients, and can inhibit the beneficial effects of harmful organisms. fungus. Applying PGPR microorganisms when a disease occurs can disturb the plant-pathogen interaction and create a new balance that benefits the plant.

[0003] The mechanism of PGPR microbial disease prevention and growth promotion is the result of the comprehensive action of various methods, including PGPR microbial transformation of nutrients that plants cannot directly use in the soil, production of phytohormones that regulate plant growth, production of volatile gases, and productio...

Claims

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