Non-traditional peptide KQ-11 and application thereof

Abstract

The invention discloses a non-traditional peptide KQ-11. The amino acid sequence of the peptide KQ-11 is KQRKKILGCTY. A broad-spectrum antifungal activity experiment of the non-traditional peptide KQ-11 shows that the KQ-11 achieves an inhibition effect on fungi mainly through hypha aggregation. The highest inhibition rates of the peptide KQ-11 on the Bipolaris zeicola, Curvularia lunata, Fusarium graminearum and Bipolaris maydis are 60.4 percent, 61.9 percent, 45.1 percent and 39.9 percent respectively.

Description

technical field [0001] The invention relates to a non-traditional peptide, in particular to a non-traditional peptide with antibacterial activity against pathogenic fungi. Background technique [0002] Fungal plant pathogens are an important class of microorganisms that cause significant economic losses to agricultural production around the world. For decades, chemical pesticides have been commonly used to control the growth and spread of fungal pathogens. However, the use of pesticides not only pollutes the environment but also endangers human health, and the range of effects of pesticides is limited. Therefore, there is an urgent need to find a green, environmentally friendly and safe new fungicide to replace the currently used chemical pesticides. [0003] Peptides usually consist of 2 to 100 amino acid residues, and are small biomolecules that play important roles in organisms. According to their functions, small peptides can be divided into two categories: one is cal...

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Problems solved by technology

However, the use of pesticides not only pollutes the environment but al

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