A kind of bacteria degrading dicoumaric acid glucoside and its breeding method and application

Abstract

A bacterium for degrading dicoumaric acid glucoside and its breeding method and application: including step 1, extracting bacteria from Eupatoria adenophorum invasion plots, culturing and purifying them, and step 2, carrying out molecular identification of isolated bacterial single colonies; Step 3. Degradation test of dicoumaric acid glucoside. This bacterium has a strong effect of degrading dicoumaric acid glucoside. When applied to the soil invaded by Eupatorium adenophorum, it can greatly alleviate the damage caused by Eupatorium adenophorum. The allelopathy of native plants can promote the recovery of native plants in Eupatorium adenophorum invasion.

Description

technical field [0001] The invention relates to the field of screening and identification of bacteria capable of degrading dicoumaric acid glucoside, an allelochemical of the invasive weed Eupatorium adenophorum, in particular to a bacterium for degrading dicoumaric acid glucoside and a breeding method thereof and application. Background technique [0002] Eupatorium adenophora (scientific name: Ageratina adenophora Sprengel or Eupatorium adenophorum), also known as Liberation Grass, Destruction Grass, Red Deer Grass, Big Black Grass, Flower Cohosh, Fine Cohosh, is a perennial of the Asteraceae Eupatoria family. The herbaceous plant or subshrub, native to Mexico and Costa Rica, has become a global invasive species due to its strong reproductive ability since it was introduced as an ornamental plant around the world in the 19th century. In 2003, it ranked first in the "China's First Batch of Invasive Alien Species List" issued by the State Environmental Protection Administra...

AI Technical Summary

Problems solved by technology

Although the ultimate goal of management of invasive organisms is to restore native species where the organism has invaded, sometimes in habitats invaded by invasive plants such as Eupatorium adenophorum even if Eupatoria adenophorum is controlled or eliminated It is very difficult to restore, because the allelochemicals produced by the invaders are still in the soil, and the litter produced by the invaders will often release allelochemicals

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