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Yi Y, Luan P, Fan M, Wu X, Sun Z, Shang Z, Yang Y, Li C. Antifungal efficacy of Bacillus amyloliquefaciens ZK-9 against Fusarium graminearum and analysis of the potential mechanism of its lipopeptides. Int J Food Microbiol 2024; 422:110821. [PMID: 38970998 DOI: 10.1016/j.ijfoodmicro.2024.110821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 06/22/2024] [Accepted: 06/29/2024] [Indexed: 07/08/2024]
Abstract
Fusarium graminearum is a destructive fungal pathogen that seriously threatens wheat production and quality. In the management of fungal infections, biological control is an environmentally friendly and sustainable approach. Here, the antagonistic strain ZK-9 with a broad antifungal activity was identified as Bacillus amyloliquefaciens. ZK-9 could produce extracellular enzymes such as pectinase, protease, cellulase, and amylase, as well as plant growth-promoting substances including IAA and siderophore. Lipopeptides extracted from strain ZK-9 had the high inhibitory effects on the mycelia of F. graminearum with the minimum inhibitory concentration (MIC) of 0.8 mg/mL. Investigation on the action mechanism of lipopeptides showed they could change the morphology of mycelia, damage the cell membrane, lower the content of ergosterol and increase the relative conductivity of membrane, cause nucleic acid and proteins leaking out from the cells, and disrupt the cell membrane permeability. Furthermore, metabolomic analysis of F. graminearum revealed the significant differences in the expression of 100 metabolites between the lipopeptides treatment group and the control group, which were associated with various metabolic pathways, mainly including amino acid biosynthesis, pentose, glucuronate and glycerophospholipid metabolism. In addition, strain ZK-9 inhibited Fusarium crown rot (FCR) with a biocontrol efficacy of 82.14 % and increased the plant height and root length by 24.23 % and 93.25 %, respectively. Moreover, the field control efficacy of strain ZK-9 on Fusarium head blight (FHB) was 71.76 %, and the DON content in wheat grains was significantly reduced by 69.9 %. This study puts valuable insights into the antifungal mechanism of lipopeptides against F. graminearum, and provides a promising biocontrol agent for controlling F. graminearum.
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Affiliation(s)
- Yanjie Yi
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe 462300, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China.
| | - Pengyu Luan
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe 462300, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China
| | - Minghao Fan
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China
| | - Xingquan Wu
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China
| | - Zhongke Sun
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China
| | - Zijun Shang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China
| | - Yuzhen Yang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China
| | - Chengwei Li
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; The Key Laboratory of Functional Molecules for Biomedical Research, Zhengzhou 450001, China.
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Wada SI, Arimura H, Nagayoshi M, Sawa R, Kubota Y, Matoba K, Hayashi C, Shibuya Y, Hatano M, Takehana Y, Ohba SI, Kobayashi Y, Watanabe T, Shibasaki M, Igarashi M. Rediscovery of 4-Trehalosamine as a Biologically Stable, Mass-Producible, and Chemically Modifiable Trehalose Analog. Adv Biol (Weinh) 2022; 6:e2101309. [PMID: 35297567 DOI: 10.1002/adbi.202101309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/02/2022] [Indexed: 01/27/2023]
Abstract
Nonreducing disaccharide trehalose is used as a stabilizer and humectant in various products and is a potential medicinal drug, showing curative effects on the animal models of various diseases. However, its use is limited as it is hydrolyzed by trehalase, a widely expressed enzyme in multiple organisms. Several trehalose analogs are prepared, including a microbial metabolite 4-trehalosamine, and their high biological stability is confirmed. For further analysis, 4-trehalosamine is selected as it shows high producibility. Compared with trehalose, 4-trehalosamine exhibits better or comparable protective activities and a high buffer capacity around the neutral pH. Another advantage of 4-trehalosamine is its chemical modifiability: simple reactions produce its various derivatives. Labeled probes and detergents are synthesized in one-pot reactions to exemplify the feasibility of their production, and their utility is confirmed for their respective applications. The labeled probes are used for mycobacterial staining. Although the derivative detergents can be effectively used in membrane protein research, long-chain detergents show 1000-3000-fold stronger autophagy-inducing activity in cultured cells than trehalose and are expected to become a drug lead and research reagent. These results indicate that 4-trehalosamine is a useful trehalose substitute for various purposes and a material to produce new useful derivative substances.
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Affiliation(s)
- Shun-Ichi Wada
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Honami Arimura
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Miho Nagayoshi
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Ryuichi Sawa
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Yumiko Kubota
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Kazuaki Matoba
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Chigusa Hayashi
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Yuko Shibuya
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Masaki Hatano
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Yasuhiro Takehana
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Shun-Ichi Ohba
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Yoshihiko Kobayashi
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Takumi Watanabe
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Masayuki Igarashi
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23, Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
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Zhang H, Xu GY, Mao C, Xu Y, Dong W, Inam M, Pan S, Hu R, Wang Y, Wang Y, Ma H, Kong L. Characterization and complete genome analysis of Bacillus velezensis CB6 revealed ATP synthase subunit α against foodborne pathogens. Arch Microbiol 2020; 203:1061-1069. [PMID: 33146800 DOI: 10.1007/s00203-020-02102-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/13/2020] [Accepted: 10/19/2020] [Indexed: 11/29/2022]
Abstract
Given the serious threat of foodborne multidrug-resistant bacteria to animals and humans, finding an effective antibacterial compound has always been an important topic for scientists. Here, from the soil of Changbaishan, we have identified a bacterium that can inhibit the growth of Staphylococcus aureus. Nr genome database analysis and phylogenetic analysis showed that strain CB6 belongs to Bacillus velezensis. We found that the crude extract of strain CB6 has broad-spectrum antibacterial activity against foodborne pathogens. In addition, we showed that the crude extract loses antibacterial activity after treatment with papain. Next, strain CB6 was purified using ammonium sulfate precipitation, a Sephadex G-75 gel filtration column and high-performance liquid chromatography system (HPLC). Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis indicated that the antibacterial compound was the protein ATP synthase subunit α (ATP-1), with a molecular weight of 55.397 KDa. Moreover, we reported the complete genome sequence of strain CB6, which is composed of a unique circular 3,963,507 bp chromosome with 3749 coding genes and a G + C content of 46.53%. The genome contained 12 gene clusters with antibacterial functions, which constituted over 20.947% of the complete genome. Of note, the amino acid sequence encoding the ATP-1 protein in the strain CB6 genome was identified. In addition to these findings, we speculate that the ATP-1 protein may provide energy for secondary metabolites, which in turn will improve the antibacterial activity of the secondary metabolites. All the above important features make the ATP-1 as a potential candidate for the development of new antibacterial drugs and food preservatives in the future.
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Affiliation(s)
- Haipeng Zhang
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Guan-Yi Xu
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Changsi Mao
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Yuxuan Xu
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Wenlong Dong
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Muhammad Inam
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | | | - Renge Hu
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Yiming Wang
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Yu Wang
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China
| | - Hongxia Ma
- College of Life Science, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China.
| | - Lingcong Kong
- College of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118, China.
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