Paracoccus marcusii and application to promotion of synechococcus growth

Abstract

The invention relates to the field of a microorganism engineering technology, and especially relates to a strain of Paracoccus marcusii and an application to promotion for synechococcus growth. A stain of Paracoccus marcusii is screened and named Paracoccus marcusii SYN7002-084; the Paracoccus marcusii is preserved on October 28th 2015 in China general microbiological culture collection center, and the preservation number is CGMCC No.11548. The bacterial strain can effectively promote growth of microalgae, photosynthetic growth efficiency of the microalgae is increased by 3.19 times during a curtain time, the cultivation period of the microalgae is substantially shortened, the microalgae output is obviously increased during a unit time, time and money cost are saved, and income is increased.

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...

AI Technical Summary

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

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