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Serratia rubidaea with growth-promoting effect and application of serratia rubidaea

A Serratia and Crimson technology, applied in the field of microbial growth promotion, can solve problems such as restricting the sustainable development of rural economic industries and affecting crop yields, and achieves the improvement of crop yields, alleviation of farmland salinization, and fast growth. Effect

Active Publication Date: 2019-12-13
SHANDONG AGRICULTURAL UNIVERSITY
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Problems solved by technology

These saline-alkali soils seriously affect crop yields and limit the sustainable development of my country's rural economic industries

Method used

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  • Serratia rubidaea with growth-promoting effect and application of serratia rubidaea
  • Serratia rubidaea with growth-promoting effect and application of serratia rubidaea
  • Serratia rubidaea with growth-promoting effect and application of serratia rubidaea

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Experimental program
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Embodiment 1

[0044] Such as figure 1 and 2 As shown, the strain was cultured on LB plate medium (yeast powder, 0.5%, peptone, 1%, sodium chloride, 1%, distilled water, agar, 1.6%, distilled water, sterilized at 121°C for 20min, pH7.0) After 24 hours, the colonies were round, smooth, moist, flat, pale yellow, with regular edges; the bacteria were rod-shaped, Gram-negative, and without spores.

[0045] In addition, through the detection of physiological and biochemical experiments, the physiological and biochemical characteristics of the strain are: positive for catalase, negative for V-P test, positive for D-glucose, positive for L-arabinose, positive for D-mannitol, positive for amylase hydrolysis, and citrate utilization Positive.

[0046] A kind of fermented liquid of bacterium is also provided in the present embodiment, the Serratia rubidaea (Serratia rubidaea) 3004J-3 that the slant is preserved is transferred in the test tube that 5ml liquid culture medium is housed, is placed in co...

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Abstract

The invention belongs to the technical field of microorganism growth promotion, and particularly relates to serratia rubidaea with a growth promotion effect and an application of the serratia rubidaea. The soil salinization problem seriously affects the crop yield and the sustainable development of agricultural economy. Aiming at the development problem of saline alkali soil, some root growth-promoting bacteria can improve the salt resistance and alkali resistance of crops, promote the growth condition of the crops, improve the stress resistance of the crops and gradually realize the soil improvement effect. The invention provides a serratia rubidaea strain 3004 J-3. Tests prove that the strain can keep good growth vigor in a saline-alkali environment, has the capacity of promoting growthtraits of plants in the saline-alkali environment, further explores the mechanism of the plants, has the effects of producing protease and siderophore and decomposing organophosphorus in the environment, and has important significance in saline-alkali soil improvement and plant stress resistance improvement.

Description

technical field [0001] The disclosure belongs to the technical field of microbial growth promotion, and specifically relates to a strain of Serratia rubidaea with growth-promoting effects such as protease production, siderophore, and phosphorus dissolution, and its application. Background technique [0002] The information disclosed in this Background section is only intended to increase the understanding of the general background of the disclosure, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes prior art that is already known to those skilled in the art. [0003] Saline-alkali soil is a soil with high salt concentration, which is not conducive to plant growth. It is distributed all over the world. With the rapid increase of population and unreasonable reclamation, the original structure of the soil surface is destroyed, resulting in desertification and salinization of the land. aggravated. In the Huang-Hua...

Claims

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Application Information

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IPC IPC(8): C12N1/20C12N9/52A01N63/00A01P21/00C09K17/14C12R1/425C09K101/00C09K109/00
CPCA01N63/00C09K17/14C09K2101/00C09K2109/00C12N1/20C12N9/52C12N1/205C12R2001/425
Inventor 杜秉海丁延芹汪城墙王文团刘凯姚良同
Owner SHANDONG AGRICULTURAL UNIVERSITY
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