A strain of Acremonium for controlling Myzus persicae

Abstract

The object of the present invention is to provide a bacterial strain for preventing and treating aphids, that is, a strain of Acremonium sp. from marine bottom mud, and the preservation number is: CGMCC NO.11658. The mfn1 bacterial strain screened by the present invention is used to prevent and control aphids, and can also be used to prepare products with the function of preventing and controlling aphids. The mfn1 bacterial strain with biological activity on tobacco aphid obtained by the present invention can be applied to the prevention and treatment of tobacco aphid, and the biological measurement of aphid by micro-drop method shows that the lethality of secondary metabolites in its fermentation liquid to aphid Up to 97.78%. After chemical analysis and structural identification by GC / MS, the secondary metabolites included 7 main compounds, including 3 peptide compounds, 2 ester compounds, alkaloid accumulation compounds, and hydrazine compounds, 1 each.

Description

technical field

[0001] The invention belongs to the technical field of microbial control, and in particular relates to a bacterial strain for preventing and controlling aphids, that is, a strain of Acremonium sp. from marine bottom mud, and secondary small molecules obtained from the bacterial strain The mixture of compounds; the bacterial strain of the present invention and its metabolites can be used in the control of tobacco aphids. Background technique

[0002] As people pay more and more attention to their own health and living environment, the disadvantages brought by traditional chemical pest control measures have attracted great attention. The excessive use of chemical pesticides has led to the increase of pesticide residues in the environment, the enhancement of pest resistance and the re-emergence of pests and other problems are the most prominent. With the further understanding of various social problems, environmental problems, and human health problems caused b...