Pseudomonas aeruginosa 9 # and application thereof

Abstract

The invention discloses pseudomonas aeruginosa 9 # and application thereof, and belongs to the technical field of microorganisms. The invention discloses a pseudomonas aeruginosa strain 9 #, and the preservation number of the pseudomonas aeruginosa strain 9 # is CCTCC NO: M2021178. The pseudomonas aeruginosa strain 9 # disclosed by the invention can inhibit the growth of a Ustilaginoidea virens strain YY7850, which is an example that the pseudomonas aeruginosa strain is found to have antagonism to the Ustilaginoidea virens pathogenic bacteria for the first time, and due to the fact that the strain 9 # has the capacity of inhibiting the Ustilaginoidea virens pathogenic bacteria, the strain has the potential of being developed into a Ustilaginoidea virens biocontrol bacterium.

Description

technical field [0001] The invention relates to the technical field of microbes, and more specifically relates to a strain of Pseudomonas aeruginosa 9# and its application. Background technique [0002] Rice false smut is a fungal disease on rice spikes caused by the infection of the rice false smut fungus - Ustilaginodea virens (Cooke) Takahashi. It infects glumes, glumes, and grains in the late growth stage of rice, commonly known as "harvest disease". . Rice false smut is a worldwide rice disease, which occurs in many countries such as China, Japan, the United States, India, and the Philippines. In recent years, it has been upgraded from a minor disease to one of the major diseases on rice. The smut fungus consumes a large amount of nutrients in the diseased grains during the reproduction process, which not only harms the grain itself, but also affects the nutrient transport of adjacent grains, resulting in an increase in the empty grain rate, a decrease in the seed set...

AI Technical Summary

Problems solved by technology

During the reproduction process of rice false smut bacteria, a large amount of nutrients are consumed in diseased grains, which not only harms the grain itself, but also affects the nutrient transport of adjacent grains, resulting in an increase in empty grain rate, a decrease in seed setting rate and 1,000-grain weight, resulting in a reduction in yield

Rice smut not only forms rice bent balls on the ears of rice, which seriously affects the growth of grains, reduces the yield and quality of rice, and the rice smut toxin produced by the pathogenic fungus Chlorosclerotinum oryzae is also toxic to humans and animals.

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