Stenotrophomonas sp. strain KT48, algicidal bacterial liquid as well as preparation method and application of algicidal bacterial liquid

Abstract

The invention provides a Stenotrophomonas sp. strain KT48, algicidal bacterial liquid as well as a preparation method and application of the algicidal bacterial liquid. The preservation number of the Stenotrophomonas sp. strain KT48 is CGMCC NO. 22722, and the algicidal bacterial liquid is prepared from the Stenotrophomonas sp. strain KT48 with the preservation number of CGMCC NO. 22722; the Stenotrophomonas sp. strain KT48 has an algae removal effect instead of a metabolite of the Stenotrophomonas sp. strain KT48, so that the Stenotrophomonas sp. strain KT48 is more convenient for practical application; when the algicidal bacterial liquid is prepared, a culture medium is inoculated with the Stenotrophomonas sp. strain KT48, then, the culture medium is cultured in a constant-temperature oscillation box to a stable phase so as to obtain the algicidal bacterial liquid, and thus, the preparation method is simple; the Stenotrophomonas sp. strain KT48 can be used for breaking cell membranes of microcystis aeruginosa and destroying cell structures of the microcystis aeruginosa; and the algicidal bacterial liquid prepared by adopting the Stenotrophomonas sp. strain KT48 can be used for lowering the chlorophyll content of blue-green algae and effectively controlling water bloom outbreak, and has high efficiency, biological specificity, environmental friendliness and biodegradability. When the algicidal bacterial liquid is used for controlling blue-green algae bloom, the cost is low, the operation is simple, the safety is high, and secondary pollution is avoided.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to oligooxymonas bacterial strain KT48, algae-lysing bacteria liquid and its preparation method and application. Background technique [0002] In recent years, the eutrophication of water bodies has attracted widespread attention worldwide, and the frequency of algal blooms has also increased significantly, especially in shallow lakes. Short-term control of algal blooms in freshwater systems is most common using physical and chemical methods. But in fact, the endogenous pollution of water bodies has not been reduced, and algae blooms have not been effectively controlled for a long time, but have fallen into a repeated cycle of "outbreak-treatment-outbreak". The use of clay to induce bloom flocculation is the only effective algae control measure at present, but the algae that settle into the water body may be converted into endogenous pollution, and there is a risk of secondary pollutio...

AI Technical Summary

Problems solved by technology

But in fact, the endogenous pollution of water bodies has not been reduced, and algae blooms have not been effectively controlled for a long time, but have fallen into a repeated cycle of "outbreak-treatment-outbreak"

The use of clay to induce bloom flocculation is the only effective algae control measure at present, but the algae that settle into the water body may be converted into endogenous pollution, and there is a risk of secondary pollution

Images