Antagonistic Strain Bacillus amyloliquefaciens XZ34-1 for Controlling Bipolaris sorokiniana and Promoting Growth in Wheat
| Autor: | Yanan Yin, Yan Hui Yang, Yang Liu, Youtian Shan, Pengyu Luan, Yanjie Yi, Zhipeng Hou, Ruifang Li, Shifei Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Microbiology (medical)
Bacillus amyloliquefaciens Biological pest control biological control Bipolaris sorokiniana common root rot growth promoting chemistry.chemical_compound Spore germination Immunology and Allergy Molecular Biology Mycelium General Immunology and Microbiology Strain (chemistry) biology Inoculation Lipopeptide food and beverages Bipolaris biology.organism_classification Horticulture Infectious Diseases chemistry Medicine |
| Zdroj: | Pathogens, Vol 10, Iss 1526, p 1526 (2021) Pathogens; Volume 10; Issue 11; Pages: 1526 |
| ISSN: | 2076-0817 |
| Popis: | Common root rot, caused by Bipolaris sorokiniana, is one of the most prevalent diseases of wheat and has led to major declines in wheat yield and quality worldwide. Here, strain XZ34-1 was isolated from soil and identified as Bacillus amyloliquefaciens based on the morphological, physiological, biochemical characteristics and 16S rDNA sequence. Culture filtrate (CF) of strain XZ34-1 showed a high inhibition rate against B.sorokiniana and had a broad antifungal spectrum. It also remarkably inhibited the mycelial growth and spore germination of B. sorokiniana. In pot control experiments, the incidence and disease index of common root rot in wheat seedlings were decreased after treatment with CF, and the biological control efficacy was significant, up to 78.24%. Further studies showed XZ34-1 could produce antifungal bioactive substances and had the potential of promoting plant growth. Lipopeptide genes detection with PCR indicated that strain XZ34-1 may produce lipopeptides. Furthermore, activities of defense-related enzymes were enhanced in wheat seedlings after inoculation with B.sorokiniana and treatment with CF, which showed induced resistance could be produced in wheat to resist pathogens. These results reveal that strain XZ34-1 is a promising candidate for application as a biological control agent against B.sorokiniana. |
| Databáze: | OpenAIRE |
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