Pseudomonas mediterranea strain and application thereof

Abstract

The invention relates to a pseudomonas mediterranea strain and application thereof. The pseudomonas mediterranea MJM-3 is preserved in the general microorganism center of the China microorganism culture preservation management committee, the preservation address is No.3 of No.1 courtyard of Beichen West road of Chaoyang district of Beijing City, the preservation date is 26th July, 2012, and the preservation number is CGMCC NO.6292. The pseudomonas mediterranea strain is used as bacterial manure for growing crops. The pseudomonas mediterranea strain has ACC (1-aminocyclopropane-1-carboxylate) deaminase activity, and can secrete auximone IAA (indole acetic acid) and siderophores. Accordingly, the concentration of ethylene in a plant under the condition of environmental stress can be reduced, growth and development of a root system of the plant are promoted, iron absorption of the plant is also promoted, and growth condition of the plant is improved. Besides, when applied to agriculturalproduction, the pseudomonas mediterranea strain can promote growth of plants, yield of crops is increased, and stress resistance of the crops is strengthened.

Description

technical field [0001] The invention relates to a strain of Pseudomonas mediterranei and its application. Background technique [0002] There are large areas of saline-alkali land and secondary salinized soil in the world. With the intensification of the contradiction between population, food, land and energy, especially with the construction of some large-scale water conservancy projects, the problem of secondary salinization is becoming more and more serious. Therefore, the development of salinized land and the prevention and control of secondary salinization very urgent. [0003] Soil salinization is one of the ecological crises faced by human beings. Salt stress will not only affect plant growth and yield, but high concentration salt stress will cause plant biomass reduction or even death. Salt-alkali stress will affect almost every important physiological process of plants. Under salt stress, plant growth is inhibited, metabolism is affected, and the photosynthetic c...

AI Technical Summary

Problems solved by technology

However, some fungi cannot be purely cultured, the production cycle of the fungal agent is long, the cost is large, the inoculation technology is difficult to implement, and it cannot be sown, but a large number of its host plants can only be transplanted, and the inoculation effect is unstable under natural conditions. This restricts its practical application in a large area

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