Endophyte with insecticidal active substances and application in biological control

A technology of endophytic bacteria and ergot bacteria, applied in the field of endophytic bacteria, to achieve the effect of safe and reliable prevention and control, no pollution to the environment, and no harm to human health

CN101619292BInactive Publication Date: 2011-01-05THE INST OF MICROBIOLOGY XINJIANG ACADEMY OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-01-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses endophyte Claviceps purpurea CGMCC.No3073 and Pseudomonas fluorescens CGMCC.No3026 with insecticidal active substances and an application in biological control. The Claviceps purpurea obtains the optimal insecticidal pH of 7 to 8 by separating, screening and culturing in an achnatherum inebrians root, can maintain higher insecticidal activity in the pH range of 7.2-7.4 andhas the insecticidal activity in the temperature range of 20 DEG C-37 DEG C; and the Pseudomonas fluorescens has the optimal insecticidal pH of 7 to 8, can maintain higher insecticidal activity in the pH range of 7.2-7.4 and has the insecticidal activity in the temperature range of 20 DEG C-37 DEG C. A bacterial strain of the invention can be widely applied to the biological control field of controlling the damage of cotton bollworms, red spiders, locusts, and the like.
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Description

Endophytic Bacteria with Insecticidal Active Substances and Its Application in Biocontrol field of invention The invention relates to the field of biological control, in particular, the invention relates to an endophytic bacterium with insecticidal effect on insect pests such as cotton bollworm, spider mite and locust and application thereof. Background technique More than 100 years ago, people have discovered that there are microorganisms in the interior of healthy plant tissues, and these microorganisms were later called plant endophytes (Endophytes) in the literature. At present, the more commonly used broad concept of endophytes was proposed by StoneJK et al., which refers to fungi or bacteria that live in various tissues and organs of healthy plants during a certain stage or all stages of their life history. The host plant does not (at least temporarily) exhibit extrinsic disease, and endophysis can be noted by histological methods or by isolation of microbial DNA fro...

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