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A Strain of Paracoccus mazenii and Its Application in Promoting the Growth of Synechococcus

A technology of Paracoccus martensi and Synechococcus, applied in the field of microbial engineering, can solve the problems of slow growth, long culture period, and unsatisfactory improvement results, etc.

Inactive Publication Date: 2018-06-29
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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Problems solved by technology

[0004] However, compared with microorganisms such as bacteria, microalgae have a longer cultivation cycle and relatively slow growth, which has become one of the important constraints affecting time and money costs in the actual production process. How to effectively improve the cultivation method of Synechococcus It has important practical significance and application prospect to increase the efficiency of body photosynthetic growth and shorten its culture period.
[0005] The traditional culture of microalgae often optimizes the growth conditions of algae by improving the light conditions and culture temperature, and adjusting the carbon dioxide concentration, pH value and nutrient composition in the culture solution. Microalgae growth rate, but the improvement results are often not very ideal

Method used

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  • A Strain of Paracoccus mazenii and Its Application in Promoting the Growth of Synechococcus
  • A Strain of Paracoccus mazenii and Its Application in Promoting the Growth of Synechococcus
  • A Strain of Paracoccus mazenii and Its Application in Promoting the Growth of Synechococcus

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Embodiment 1

[0025] In this example, the coastal water of Qingdao Shilaoren City was used as the source of isolation of growth-promoting bacteria, and the microalgae selective pressure method was used to enrich the algae bacteria, and then the coated plate and partitioned line method were used for multiple purifications and separations, and finally 325 strains were obtained. Bacterial strains, put each strain of bacteria into 50mL liquid culture medium, culture at 25°C and 200rpm for 1-3 days, then take 5mL out of it and add them to 50mL Synechococcus culture medium to investigate and compare the effects of each bacteria on algae Finally, the strain SYN-084 with a higher ability to promote the photosynthetic growth of microalgae was screened out. It was identified as Paracoccus martensii and named as Paracoccus marcusii SYN7002-084. It was inserted into the slant culture medium and stored in the refrigerator at 4°C.

[0026] Bacterial culture sampling 2216E medium. The composition of the ...

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Abstract

The invention relates to the technical field of microbial engineering, in particular to a strain of Paracoccus martensi and its application in promoting the growth of Synechococcus. A strain of Paracoccus martensii was screened out in the present invention, named Paracoccus marcusii SYN7002-084; it was preserved in the General Microorganism Center of China Committee for the Collection of Microorganisms on October 28, 2015, and the preservation number was CGMCC No.11548. This strain has a strong effect of promoting the growth of microalgae, and can increase the photosynthetic growth efficiency of Synechococcus algae by 3.19 times within a certain period of time, greatly shortening the microalgae culture cycle, and can significantly increase the production of microalgae per unit time, saving time and money costs , to increase earnings.

Description

technical field [0001] The invention relates to the technical field of microbial engineering, in particular to a strain of Paracoccus martensi and its application in promoting the growth of Synechococcus. Background technique [0002] Cyanobacteria are a kind of ancient prokaryotic microorganisms capable of oxygen-producing photosynthesis on the earth. Through genetic engineering transformation, they have important application advantages in the fields of medicine, energy, and environmental protection, which are specifically reflected in (1) Cyanobacteria can absorb solar energy, fix Carbon dioxide is used as a carbon source for autotrophic growth, and the cultivation cost is low; (2) Cyanobacteria, as a class of ancient microorganisms, have existed on the earth for billions of years. They have strong adaptability to the environment and grow rapidly; (3) Cyanobacteria genetics The operation is convenient, the genetic background is clear, and the genome sequencing of many type...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C12R1/01
Inventor 张永雨唐丽丽梁彦韬解瑞泽
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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