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Wang R, Li M, Jin R, Liu Y, Guan E, Mohamed SR, Bian K. Analysis of wheat fungal community succession in traditional storage structures using Illumina MiSeq sequencing technology. Int J Food Microbiol 2024; 425:110876. [PMID: 39173288 DOI: 10.1016/j.ijfoodmicro.2024.110876] [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: 04/12/2024] [Revised: 07/23/2024] [Accepted: 08/15/2024] [Indexed: 08/24/2024]
Abstract
The diversity of fungi in wheat with different deoxynivalenol (DON) content at various periods post-harvest and in the environment of storage were investigated. The changes in DON content were measured with ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), and an amplicon sequence analysis of fungi was performed in traditional storage structures using high-throughput sequencing. The changes in temperature, humidity, and CO2 concentration were collected by sensors. In addition, we analyzed principal component analysis, species composition, species differences, and community differences of fungi. There was an obvious separation of the fungal communities under different storage conditions and times. Many fungal genera were gradually decreasing during storage and were eventually undetectable, and many fungal genera that were undetectable at first gradually increased during storage and even became dominant fungal genera. The competition between fungi was fierce. The competition between fungi were affected by the presence of DON. As the initial DON content increased, the contribution of inter-group differences became more obvious. The temperature, humidity, and CO2 concentration of wheat in the silo's environment changed with extended storage time. The content of DON decreased with extended storage time. We had investigated the changes in DON content and their correlation with the changes in fungal communities and environmental factors, which showed a high degree of correlation. This study offers theoretical justification for optimizing safe wheat grain in traditional storage conditions.
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Affiliation(s)
- Ruihu Wang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Mengmeng Li
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Rui Jin
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yuanxiao Liu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Erqi Guan
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Sherif Ramzy Mohamed
- Department of Food Toxicology and Contaminant, National Research Centre, Cairo 12411, Egypt
| | - Ke Bian
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China.
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2
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Ma J, Gao C, Lin M, Sun Z, Zhao Y, Li X, Zhao T, Xu X, Sun W. Control of Fusarium Head Blight of Wheat with Bacillus velezensis E2 and Potential Mechanisms of Action. J Fungi (Basel) 2024; 10:390. [PMID: 38921376 PMCID: PMC11204721 DOI: 10.3390/jof10060390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/25/2024] [Accepted: 05/27/2024] [Indexed: 06/27/2024] Open
Abstract
Wheat plants are impacted by Fusarium head blight (FHB) infection, which poses a huge threat to wheat growth, development, storage and food safety. In this study, a fungal strain was isolated from diseased wheat plants and identified as Fusarium asiaticum F1, known to be a member of the Fusarium graminearum species complex, agents causally responsible for FHB. In order to control this disease, new alternatives need to be developed for the use of antagonistic bacteria. Bacillus velezensis E2 (B. velezensis E2), isolated from a previous investigation in our laboratory, showed a notable inhibitory effect on F. asiaticum F1 growth and deoxynivalenol (DON) synthesis in grains. The spore germination of F. asiaticum F1 was significantly reduced and the spores showed vesicular structures when treated with B. velezensis E2. Observations using scanning electron microscopy (SEM) showed that the hyphae of F. asiaticum F1 were shrunken and broken when treated with B. velezensis E2. The RNA-seq results of F1 hyphae treated with B. velezensis E2 showed that differentially expressed genes (DEGs), which were involved in multiple metabolic pathways such as toxin synthesis, autophagy process and glycan synthesis, especially the genes associated with DON synthesis, were significantly downregulated. In summary, those results showed that B. velezensis E2 could inhibit F. asiaticum F1 growth and reduce the gene expression of DON synthesis caused by F1. This study provides new insights and antagonistic mechanisms for the biological control of FHB during wheat growth, development and storage.
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Affiliation(s)
- Jianing Ma
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
| | - Chen Gao
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
| | - Meiwei Lin
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
| | - Zhenzhong Sun
- Jiangsu Suhe Socialized Agriculture Service Co., Ltd., Nanjing 210012, China;
| | - Yuhao Zhao
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
| | - Xin Li
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
| | - Tianyuan Zhao
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
| | - Xingang Xu
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
| | - Weihong Sun
- School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; (J.M.); (C.G.); (M.L.); (Y.Z.); (X.L.); (T.Z.); (X.X.)
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3
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Rieseberg L, Warschefsky E, Burton J, Huang K, Sibbett B. Editorial 2024. Mol Ecol 2024; 33:e17239. [PMID: 38146175 DOI: 10.1111/mec.17239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Affiliation(s)
- Loren Rieseberg
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Emily Warschefsky
- William L. Brown Center, Missouri Botanical Garden, Saint Louis, MO, USA
| | - Jade Burton
- John Wiley & Sons, Atrium Southern Gate, Chichester, West Sussex, UK
| | - Kaichi Huang
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Benjamin Sibbett
- John Wiley & Sons, Atrium Southern Gate, Chichester, West Sussex, UK
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Choi S, Yang JW, Kim JE, Jeon H, Shin S, Wui D, Kim LS, Kim BJ, Son H, Min K. Infectivity and stress tolerance traits affect community assembly of plant pathogenic fungi. Front Microbiol 2023; 14:1234724. [PMID: 37692392 PMCID: PMC10486888 DOI: 10.3389/fmicb.2023.1234724] [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: 06/22/2023] [Accepted: 07/26/2023] [Indexed: 09/12/2023] Open
Abstract
Understanding how ecological communities assemble is an urgent research priority. In this study, we used a community ecology approach to examine how ecological and evolutionary processes shape biodiversity patterns of plant pathogenic fungi, Fusarium graminearum and F. asiaticum. High-throughput screening revealed that the isolates had a wide range of phenotypic variation in stress tolerance traits. Net Relatedness Index (NRI) and Nearest Taxon Index (NTI) values were computed based on stress-tolerant distance matrices. Certain local regions exhibited positive values of NRI and NTI, indicating phenotypic clustering within the fungal communities. Competition assays of the pooled strains were conducted to investigate the cause of clustering. During stress conditions and wheat colonization, only a few strains dominated the fungal communities, resulting in reduced diversity. Overall, our findings support the modern coexistence theory that abiotic stress and competition lead to phenotypic similarities among coexisting organisms by excluding large, low-competitive clades. We suggest that agricultural environments and competition for host infection lead to locally clustered communities of plant pathogenic fungi in the field.
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Affiliation(s)
- Soyoung Choi
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Jung Wook Yang
- Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration, Suwon, Republic of Korea
| | - Jung-Eun Kim
- Research Institute of Climate Change and Agriculture, National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea
| | - Hosung Jeon
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Soobin Shin
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Dayoun Wui
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Lee Seul Kim
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Byung Joo Kim
- Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration, Suwon, Republic of Korea
| | - Hokyoung Son
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Kyunghun Min
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
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Han S, Wang M, Ma Z, Raza M, Zhao P, Liang J, Gao M, Li Y, Wang J, Hu D, Cai L. Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus. Stud Mycol 2023; 104:87-148. [PMID: 37351543 PMCID: PMC10282163 DOI: 10.3114/sim.2022.104.02] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 01/17/2023] [Indexed: 11/26/2023] Open
Abstract
Fusarium species are important cereal pathogens that cause severe production losses to major cereal crops such as maize, rice, and wheat. However, the causal agents of Fusarium diseases on cereals have not been well documented because of the difficulty in species identification and the debates surrounding generic and species concepts. In this study, we used a citizen science initiative to investigate diseased cereal crops (maize, rice, wheat) from 250 locations, covering the major cereal-growing regions in China. A total of 2 020 Fusarium strains were isolated from 315 diseased samples. Employing multi-locus phylogeny and morphological features, the above strains were identified to 43 species, including eight novel species that are described in this paper. A world checklist of cereal-associated Fusarium species is provided, with 39 and 52 new records updated for the world and China, respectively. Notably, 56 % of samples collected in this study were observed to have co-infections of more than one Fusarium species, and the detailed associations are discussed. Following Koch's postulates, 18 species were first confirmed as pathogens of maize stalk rot in this study. Furthermore, a high-confidence species tree was constructed in this study based on 1 001 homologous loci of 228 assembled genomes (40 genomes were sequenced and provided in this study), which supported the "narrow" generic concept of Fusarium (= Gibberella). This study represents one of the most comprehensive surveys of cereal Fusarium diseases to date. It significantly improves our understanding of the global diversity and distribution of cereal-associated Fusarium species, as well as largely clarifies the phylogenetic relationships within the genus. Taxonomic novelties: New species: Fusarium erosum S.L. Han, M.M. Wang & L. Cai, Fusarium fecundum S.L. Han, M.M. Wang & L. Cai, Fusarium jinanense S.L. Han, M.M. Wang & L. Cai, Fusarium mianyangense S.L. Han, M.M. Wang & L. Cai, Fusarium nothincarnatum S.L. Han, M.M. Wang & L. Cai, Fusarium planum S.L. Han, M.M. Wang & L. Cai, Fusarium sanyaense S.L. Han, M.M. Wang & L. Cai, Fusarium weifangense S.L. Han, M.M. Wang & L. Cai. Citation: Han SL, Wang MM, Ma ZY, Raza M, Zhao P, Liang JM, Gao M, Li YJ, Wang JW, Hu DM, Cai L (2023). Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus. Studies in Mycology 104: 87-148. doi: 10.3114/sim.2022.104.02.
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Affiliation(s)
- S.L. Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - M.M. Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - Z.Y. Ma
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - M. Raza
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - P. Zhao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - J.M. Liang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - M. Gao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - Y.J. Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - J.W. Wang
- Institute of Biology Co., Ltd., Henan Academy of Science, Zheng Zhou 450008, Henan, P. R. China;
| | - D.M. Hu
- College of Bioscience & Engineering, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China
| | - L. Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
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Giraud T, Ropars J, Stukenbrock EH, Amato KR, Rodriguez de la Vega R. Evolutionary ecology of human-associated microbes. Mol Ecol 2023; 32:2369-2373. [PMID: 37114833 DOI: 10.1111/mec.16966] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/05/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023]
Affiliation(s)
- Tatiana Giraud
- Université Paris-Saclay, CNRS, AgroParisTech, Laboratoire Ecologie Systématique et Evolution, Gif-sur-Yvette, France
| | - Jeanne Ropars
- Université Paris-Saclay, CNRS, AgroParisTech, Laboratoire Ecologie Systématique et Evolution, Gif-sur-Yvette, France
| | - Eva H Stukenbrock
- Environmental Genomics Group, Botanical Institute, Christian-Albrechts University of Kiel, Kiel, Germany
- Max Planck Institute for Evolutionary Biology, Plön, Germany
| | | | - Ricardo Rodriguez de la Vega
- Université Paris-Saclay, CNRS, AgroParisTech, Laboratoire Ecologie Systématique et Evolution, Gif-sur-Yvette, France
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Biogas Residues Improved Microbial Diversity and Disease Suppression Function under Extent Indigenous Soil Microbial Biomass. Life (Basel) 2023; 13:life13030774. [PMID: 36983929 PMCID: PMC10055779 DOI: 10.3390/life13030774] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/23/2023] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
Indigenous soil microbial biomass (ISMB) plays a key role in maintaining essential functions and biodiversity of soil health. One of the critical unknowns is how the indigenous microorganisms respond to different fertilizers which is directly related to agricultural production. Therefore, we used Mi-Seq sequencing and network analyses to compare the response of ISMB to biogas residue and chemical fertilizers. The results showed that crop production was profoundly influenced by levels of ISMB present and is further dependent on the strategy of fertilizer application. Higher ISMB primarily manifests through retention of richer microbial abundance, a balanced community structure, and tightened co-occurrence within a certain proportion of Nitrospirae, Rhizophlyctidaceae, and Gemmatimonadetes. Compared to chemical fertilizer, biogas residue resulted in higher production with more strongly linked nodes such as Actinobacteria, Chloroflexi and Gemmatimonadetes. Under the same level of ISMB, the microbial diversity was richer and co-occurrence was tighter when biogas residues were applied compared with chemical fertilizer. In addition, the higher level of ISMB with biogas residue applied had a lower abundance of potential fungal pathogens in both bulk and rhizosphere soil compared with chemical fertilizer. This study provides critical data to understand the influence of ISMB and biogas residue on soil ecological system.
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