Non-traditional peptide KQ-11 and application thereof
A non-traditional, phytopathogenic fungus technology, applied in applications, peptides, chemicals for biological control, etc., can solve problems such as polluting the environment, endangering human health, and limited range of action of pesticides
Inactive Publication Date: 2021-10-22
HENAN AGRICULTURAL UNIVERSITY
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Problems solved by technology
However, the use of pesticides not only pollutes the environment but also endangers human health, and the scope of pesticide action is limited
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[0027] In the early stage of the present invention, the non-traditional peptide KQ-11 was identified through the method of plant polypeptide genomics established. Activity studies against fungi (Umbilium zea zea, Curvularia crescens, Fusarium graminearum and Umbilium zea zea) were carried out. The main fungal diseases that these pathogenic fungi can cause include: round spot, charcoal ear rot (black rot), Curvularia leaf spot, Fusarium seed rot, Fusarium seedling blight, Fusarium root rot , head rot (head blight), head rot (bacterial wilt) and small spot.
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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...
Claims
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Login to View More IPC IPC(8): C07K7/06A01N47/44A01N37/46A01P3/00
CPCC07K7/06A01N47/44A01N37/46
Inventor 吴刘记陈雪艳田磊张静华
Owner HENAN AGRICULTURAL UNIVERSITY