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Wang W, Portal-Gonzalez N, Wang X, Li J, Li H, Portieles R, Borras-Hidalgo O, He W, Santos-Bermudez R. Metabolome-driven microbiome assembly determining the health of ginger crop (Zingiber officinale L. Roscoe) against rhizome rot. MICROBIOME 2024; 12:167. [PMID: 39244625 PMCID: PMC11380783 DOI: 10.1186/s40168-024-01885-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 07/27/2024] [Indexed: 09/09/2024]
Abstract
BACKGROUND Plant-associated microorganisms can be found in various plant niches and collectively comprise the plant microbiome. The plant microbiome assemblages have been extensively studied, primarily in model species. However, a deep understanding of the microbiome assembly associated with plant health is still needed. Ginger rhizome rot has been variously attributed to multiple individual causal agents. Due to its global relevance, we used ginger and rhizome rot as a model to elucidate the metabolome-driven microbiome assembly associated with plant health. RESULTS Our study thoroughly examined the biodiversity of soilborne and endophytic microbiota in healthy and diseased ginger plants, highlighting the impact of bacterial and fungal microbes on plant health and the specific metabolites contributing to a healthy microbial community. Metabarcoding allowed for an in-depth analysis of the associated microbial community. Dominant genera represented each microbial taxon at the niche level. According to linear discriminant analysis effect size, bacterial species belonging to Sphingomonas, Quadrisphaera, Methylobacterium-Methylorubrum, Bacillus, as well as the fungal genera Pseudaleuria, Lophotrichus, Pseudogymnoascus, Gymnoascus, Mortierella, and Eleutherascus were associated with plant health. Bacterial dysbiosis related to rhizome rot was due to the relative enrichment of Pectobacterium, Alcaligenes, Klebsiella, and Enterobacter. Similarly, an imbalance in the fungal community was caused by the enrichment of Gibellulopsis, Pyxidiophorales, and Plectosphaerella. Untargeted metabolomics analysis revealed several metabolites that drive microbiome assembly closely related to plant health in diverse microbial niches. At the same time, 6-({[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}methyl)oxane-2,3,4,5-tetrol was present at the level of the entire healthy ginger plant. Lipids and lipid-like molecules were the most significant proportion of highly abundant metabolites associated with ginger plant health versus rhizome rot disease. CONCLUSIONS Our research significantly improves our understanding of metabolome-driven microbiome structure to address crop protection impacts. The microbiome assembly rather than a particular microbe's occurrence drove ginger plant health. Most microbial species and metabolites have yet to be previously identified in ginger plants. The indigenous microbial communities and metabolites described can support future strategies to induce plant disease resistance. They provide a foundation for further exploring pathogens, biocontrol agents, and plant growth promoters associated with economically important crops. Video Abstract.
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Affiliation(s)
- Wenbo Wang
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, Shandong, 250022, People's Republic of China
| | - Nayanci Portal-Gonzalez
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, Shandong, 250022, People's Republic of China
| | - Xia Wang
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, Shandong, 250022, People's Republic of China
| | - Jialin Li
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, Shandong, 250022, People's Republic of China
| | - Hui Li
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, Shandong, 250022, People's Republic of China
| | - Roxana Portieles
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, Shandong, 276826, People's Republic of China
| | - Orlando Borras-Hidalgo
- Joint R&D Center of Biotechnology, RETDA, Yota Bio-Engineering Co., Ltd., 99 Shenzhen Road, Rizhao, Shandong, 276826, People's Republic of China
| | - Wenxing He
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, Shandong, 250022, People's Republic of China.
| | - Ramon Santos-Bermudez
- School of Biological Science and Technology, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, Shandong, 250022, People's Republic of China.
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Ren J, Cao T, Zang X, Liu J, Yang D. Antifungal mechanisms and characteristics of Pseudomonas fluorescens: Promoting peanut growth and combating Fusarium oxysporum-induced root rot. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 216:109092. [PMID: 39241626 DOI: 10.1016/j.plaphy.2024.109092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 08/17/2024] [Accepted: 09/02/2024] [Indexed: 09/09/2024]
Abstract
Continuous cropping of peanuts presents significant challenges to sustainable production due to soil-borne diseases like root rot caused by Fusarium species. In this study, field inoculation experiments treatments and in vitro agar plate confrontation tests were conducted, including non-inoculated controls (CK), inoculation with Pseudomonas fluorescens (PF), Fusarium oxysporum (FO), and co-inoculation with both (PF + FO). The aim was to explore the antifungal mechanisms of Pseudomonas fluorescens in mitigating root rot and enhancing peanut yield. The results indicated that PF and PF + FO significantly enhanced peanut root activity, as well as superoxide dismutase, catalase, and glutathione S-transferase activities, while simultaneously decreasing the accumulation of reactive oxygen species and malondialdehyde contents, compared to FO treatment. Additionally, PF treatment notably increased lignin content through enhanced phenylalanine ammonia lyase, cinnamate 3-hydroxylase, and peroxidase activity compared to CK and FO treatment. Moreover, PF treatment resulted in longer roots and a higher average diameter and surface area, potentially due to increased endogenous levels of auxin and zeatin riboside, coupled with decreased abscisic acid content. PF treatment significantly elevated chlorophyll content and the maximum photochemical efficiency of PSII in the light-adapted state, the actual photochemical efficiency and the proportion of PSII reaction centers open, leading to improved photosynthetic performance. Confrontation culture assays revealed PF's notable inhibitory effects on Fusarium oxysporum growth, subsequently reducing rot disease incidence in the field. Ultimately, PF treatment led to increased peanut yield by enhancing plant numbers and pod weight compared to FO treatment, indicating its potential in mitigating Fusarium oxysporum-induced root rot disease under continuous cropping systems.
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Affiliation(s)
- Jinfeng Ren
- Agronomy College of Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Tianxiao Cao
- Agronomy College of Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Xiuzhi Zang
- Agronomy College of Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Jianbo Liu
- Agronomy College of Shandong Agricultural University, Tai'an, 271018, Shandong, China
| | - Dongqing Yang
- Agronomy College of Shandong Agricultural University, Tai'an, 271018, Shandong, China.
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Shen W, Yang X, Liu Y, Wang Y, Lu H. Nematode-trapping fungus Arthrobotrys oligospora recruited rhizosphere microorganisms to cooperate in controlling root-knot nematodes in tomato. J Appl Microbiol 2024; 135:lxae218. [PMID: 39169468 DOI: 10.1093/jambio/lxae218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 08/15/2024] [Accepted: 08/19/2024] [Indexed: 08/23/2024]
Abstract
AIMS The objective of this study was to elucidate the role and mechanism of changes in the rhizosphere microbiome following Arthrobotrys oligospora treatment in the biological control of root-knot nematodes and identify the key fungal and bacterial species that collaborate with A. oligospora to biocontrol root-knot nematodes. METHODS AND RESULTS We conducted a pot experiment to investigate the impact of A. oligospora treatment on the biocontrol efficiency of A. oligospora against Meloidogyne incognita infecting tomatoes. We analyzed the rhizosphere bacteria and fungi communities of tomato by high-throughput sequencing of the 16S rRNA gene fragment and the internal transcribed spacer (ITS). The results indicated that the application of A. oligospora resulted in a 53.6% reduction in the disease index of M. incognita infecting tomato plants. The bacterial diversity of rhizosphere soil declined in the A. oligospora-treated group, while fungal diversity increased. The A. oligospora treatment enriched the tomato rhizosphere with Acidobacteriota, Firmicutes, Bradyrhizobium, Sphingomonadales, Glomeromycota, and Purpureocillium. These organisms are involved in the utilization of rhizosphere organic matter, nitrogen, and glycerolipids, or play the role of ectomycorrhiza or directly kill nematodes. The networks of bacterial and fungal co-occurrence exhibited a greater degree of stability and complexity in the A. oligospora treatment group. CONCLUSIONS This study demonstrated the key fungal and bacterial species that collaborate with the A. oligospora in controlling the root-knot nematode and elaborated the potential mechanisms involved. The findings offer valuable insights and inspiration for the advancement of bionematicide based on nematode-trapping fungi.
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Affiliation(s)
- Weixin Shen
- School of Life Sciences, Anhui University, Hefei 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, China
| | - Xinyue Yang
- School of Life Sciences, Anhui University, Hefei 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, China
| | - Yanzhuo Liu
- School of Life Sciences, Anhui University, Hefei 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, China
| | - Yongzhong Wang
- School of Life Sciences, Anhui University, Hefei 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, China
| | - Hengqian Lu
- School of Life Sciences, Anhui University, Hefei 230601, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, China
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Yu S, Sheng Q, Sahito ZA, Wang W, Xu S, Lian J, Du P, Tong W, Feng Y, Yang X. Harmonizing soil restoration and microbial diversity: Insights from a Two-Year field experiment with Sedum-Rice rotation systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175336. [PMID: 39134265 DOI: 10.1016/j.scitotenv.2024.175336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 08/03/2024] [Accepted: 08/04/2024] [Indexed: 08/17/2024]
Abstract
Phytoremediation coupled with agroproduction (PCA) model contributes to sustainable agriculture and environmental management. This study investigated the impact of continuous cropping early/late season rice (RR) and Sedum alfredii-rice rotation (SR) on soil physical and chemical properties, as well as their relationships with soil microbial community. In 2022, SR treatment significantly increased pH value and organic matter content by 7 % and 17 %, respectively, compared to the levels in 2020, while RR treatment showed no change. RR treatment resulted in a significant decrease in soil concentrations of Ca, Mg, and K by 18.42 %, 29.01 %, and 7.77 %, respectively. Furthermore, SR treatment saw reductions of 29.62 % in total Cd and 38.30 % in DTPA extractable Cd in the soil. Over the two years, both treatments notably influenced the diversity, structure, and network of the rhizosphere bacterial and fungal communities, which are crucial for nutrient cycling and plant health. Notably, SR treatment exhibited a more complex network compared to RR, suggesting a greater impact on the interconnected systems. Therefore, these findings highlight the potential of Sedum rotation system to rehabilitate contaminated soils while supporting agricultural practices, which is essential for food security and environmental sustainability. This research direction holds promise for future exploration and application in the fields of phytoremediation and agroecology.
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Affiliation(s)
- Song Yu
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Qi Sheng
- Shenergy Environmental Technology Co., Ltd, Room 506, Building 8, Xixi Octagon City, Wuchang Street, Zhejiang Province, People's Republic of China
| | - Zulfiqar Ali Sahito
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Wenkai Wang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Shunan Xu
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Jiapan Lian
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Pengtao Du
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-Saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, People's Republic of China
| | - Wenbin Tong
- Agricultural Technology Promotion Center, Qujiang District, Quzhou City, Zhejiang Province, People's Republic of China.
| | - Ying Feng
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaoe Yang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China.
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Liu M, Xue R, Yang C, Han N, Hu Y, Gu K, Zhao J, Guan S, Su J, Jiang Y. Rotation with other crops slow down the fungal process in tobacco-growing soil. Sci Rep 2024; 14:14160. [PMID: 38898096 PMCID: PMC11187129 DOI: 10.1038/s41598-024-64735-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 06/12/2024] [Indexed: 06/21/2024] Open
Abstract
Continuous cultivation of tobacco could cause serious soil health problems, which could cause bacterial soil to change to fungal soil. In order to study the diversity and richness of fungal community in tobacco-growing soil under different crop rotation, three treatments were set up in this study: CK (tobacco continuous cropping); B (barley-tobacco rotation cropping) and R (oilseed rape-tobacco rotation cropping). The results of this study showed that rotation with other crops significantly decreased the soil fungal OTUs, and also decreased the community richness, evenness, diversity and coverage of fungal communities. Among them, B decreased the most. In the analysis of the composition and structure of the fungal community, it was found that the proportion of plant pathogens Nectriaceae decreased from 19.67% in CK to 5.63% in B, which greatly reduced the possibility of soil-borne diseases. In the analysis of the correlation between soil environmental factors and fungal communities, it was found that Filobasidiaceae had a strong correlation with TP and AP, and Erysiphaceae had a strong correlation with TK and AK. NO3--N and NH4+-N were the two environmental factors with the strongest correlation with fungal communities. The results of this study showed that rotation with other crops slowed down the process of soil fungi in tobacco-growing soil and changed the dominant species of soil fungi community. At the same time, crop rotation changed the diversity and richness of soil fungal community by changing the physical and chemical properties of soil.
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Affiliation(s)
- Ming Liu
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
- SouthWest University, Chongqing, 400715, China
| | - Rujun Xue
- Weishan City Branch of Yunnan Tobacco Company, Weishan, 672400, Yunnan, China
| | - Chengwei Yang
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Ningbo Han
- Weishan City Branch of Yunnan Tobacco Company, Weishan, 672400, Yunnan, China
| | - Yanxia Hu
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Kaiyuan Gu
- SouthWest University, Chongqing, 400715, China
| | - Jie Zhao
- SouthWest University, Chongqing, 400715, China
| | - Shuyue Guan
- SouthWest University, Chongqing, 400715, China
| | - Jiaen Su
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China.
| | - Yonglei Jiang
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
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Guo R, Li B, Zhao Y, Tang C, Klosterman SJ, Wang Y. Rhizobacterial Bacillus enrichment in soil enhances smoke tree resistance to Verticillium wilt. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38894696 DOI: 10.1111/pce.15004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/09/2024] [Accepted: 06/02/2024] [Indexed: 06/21/2024]
Abstract
Verticillium wilt, caused by the soilborne fungus Verticillium dahliae, poses a serious threat to the health of more than 200 plant species worldwide. Although plant rhizosphere-associated microbiota can influence plant resistance to V. dahliae, empirical evidence underlying Verticillium wilt resistance of perennial trees is scarce. In this study, we systemically investigated the effect of the soil microbiota on the resistance of smoke trees (Cotinus coggygria) to Verticillium wilt using field, greenhouse and laboratory experiments. Comparative analysis of the soil microbiota in the two stands of smoke trees suggested that Bacillus represented the most abundant and key microbial genus related to potential disease suppression. Smoke tree seedlings were inoculated with isolated Bacillus strains, which exhibited disease suppressiveness and plant growth-promoting properties. Furthermore, repletion of Bacillus agents to disease conducive soil significantly resulted in reduced incidence of smoke tree wilt and increased resistance of the soil microbiota to V. dahliae. Finally, we explored a more effective combination of Bacillus agents with the fungicide propiconazole to combat Verticillium wilt. The results establish a foundation for the development of an effective control for this disease. Overall, this work provides a direct link between Bacillus enrichment and disease resistance of smoke trees, facilitating the development of green control strategies and measurements of soil-borne diseases.
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Affiliation(s)
- Ruifeng Guo
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, Beijing, China
| | - Bimeng Li
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, Beijing, China
| | - Yize Zhao
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, Beijing, China
| | - Chen Tang
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, Beijing, China
| | - Steven J Klosterman
- United States Department of Agriculture, Agricultural Research Service, Salinas, California, USA
| | - Yonglin Wang
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, Beijing, China
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Fu Y, Tang X, Sun T, Lin L, Wu L, Zhang T, Gong Y, Li Y, Wu H, Xiong J, Tang R. Rare taxa mediate microbial carbon and nutrient limitation in the rhizosphere and bulk soil under sugarcane-peanut intercropping systems. Front Microbiol 2024; 15:1403338. [PMID: 38873152 PMCID: PMC11169858 DOI: 10.3389/fmicb.2024.1403338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/08/2024] [Indexed: 06/15/2024] Open
Abstract
Introduction Microbial carbon (C) and nutrient limitation exert key influences on soil organic carbon (SOC) and nutrient cycling through enzyme production for C and nutrient acquisition. However, the intercropping effects on microbial C and nutrient limitation and its driving factors between rhizosphere and bulk soil are unclear. Methods Therefore, we conducted a field experiment that covered sugarcane-peanut intercropping with sole sugarcane and peanut as controls and to explore microbial C and nutrient limitation based on the vector analysis of enzyme stoichiometry; in addition, microbial diversity was investigated in the rhizosphere and bulk soil. High throughput sequencing was used to analyze soil bacterial and fungal diversity through the 16S rRNA gene and internal transcribed spacer (ITS) gene at a phylum level. Results Our results showed that sugarcane-peanut intercropping alleviated microbial C limitation in all soils, whereas enhanced microbial phosphorus (P) limitation solely in bulk soil. Microbial P limitation was also stronger in the rhizosphere than in bulk soil. These results revealed that sugarcane-peanut intercropping and rhizosphere promoted soil P decomposition and facilitated soil nutrient cycles. The Pearson correlation results showed that microbial C limitation was primarily correlated with fungal diversity and fungal rare taxa (Rozellomycota, Chyltridiomycota, and Calcarisporiellomycota) in rhizosphere soil and was correlated with bacterial diversity and most rare taxa in bulk soil. Microbial P limitation was solely related to rare taxa (Patescibacteria and Glomeromycota) in rhizosphere soil and related to microbial diversity and most rare taxa in bulk soil. The variation partitioning analysis further indicated that microbial C and P limitation was explained by rare taxa (7%-35%) and the interactions of rare and abundant taxa (65%-93%). Conclusion This study indicated the different intercropping effects on microbial C and nutrient limitation in the rhizosphere and bulk soil and emphasized the importance of microbial diversity, particularly rare taxa.
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Affiliation(s)
- Yue Fu
- College of Agronomy, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning, China
| | - Xiumei Tang
- Guangxi Academy of Agricultural Sciences, Cash Crops Research Institute, Nanning, Guangxi, China
| | - Tingting Sun
- College of Agronomy, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning, China
| | - Litao Lin
- Center for Ecological Civilization Research, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Lixue Wu
- College of Agronomy, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning, China
| | - Tian Zhang
- College of Agronomy, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning, China
| | - Yifei Gong
- College of Agronomy, Guangxi University, Nanning, Guangxi, China
| | - Yuting Li
- College of Agronomy, Guangxi University, Nanning, Guangxi, China
| | - Haining Wu
- Guangxi Academy of Agricultural Sciences, Cash Crops Research Institute, Nanning, Guangxi, China
| | - Jun Xiong
- Guangxi Academy of Agricultural Sciences, Cash Crops Research Institute, Nanning, Guangxi, China
| | - Ronghua Tang
- Guangxi Academy of Agricultural Sciences, Cash Crops Research Institute, Nanning, Guangxi, China
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Wang Y, Hu T, Li M, Yin X, Song L. Overexpression of the NbZFP1 encoding a C3HC4-type zinc finger protein enhances antiviral activity of Nicotiana benthamiana. Gene 2024; 908:148290. [PMID: 38367853 DOI: 10.1016/j.gene.2024.148290] [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: 12/21/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
Viral diseases are crucial determinants affecting tobacco cultivation, leading to a substantial annual decrease in production. Previous studies have demonstrated the regulatory function of the C3HC4 family of plant zinc finger proteins in combating bacterial diseases. However, it remains to be clarified whether this protein family also plays a role in regulating resistance against plant viruses. In this study, the successful cloning of the zinc finger protein coding gene NbZFP1 from Nicotiana benthamiana has been achieved. The full-length coding sequence of NbZFP1 is 576 bp. Further examination and analysis of this gene revealed its functional properties. The induction of NbZFP1 transcription in N. benthamiana has been observed in response to TMV, CMV, and PVY. Transgenic N. benthamiana plants over-expressing NbZFP1 demonstrated a notable augmentation in the production of chlorophyll a (P < 0.05). Moreover, NbZFP1-overexpressing tobacco exhibited significant resistance to TMV, CMV, and PVY, as evidenced by a decrease in virus copies (P < 0.05). In addition, the defense enzymes activities of PAL, POD, and CAT experienced a significant increase (P < 0.05). The up-regulated expression of genes of NbPAL, NbNPR1 and NbPR-1a, which play a crucial role in SA mediated defense, indicated that the NbZFP1 holds promise in enhancing the virus resistance of tobacco plant. Importantly, the results demonstrate that NbZFP1 can be considered as a viable candidate gene for the cultivation of crops with enhanced virus resistance.
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Affiliation(s)
- Yifan Wang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, Guizhou Province, China; National-Local Joint Engineering Research Center of Karst Region Plant Resources Utilization & Breeding(Guizhou), Guiyang 550025, Guizhou Province, China
| | - Ting Hu
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, Guizhou Province, China
| | - Minxue Li
- Agricultural and Rural Bureau, Shuicheng District, Liupanshui City 553040, Guizhou Province, China
| | - Xiaodan Yin
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, Guizhou Province, China; National-Local Joint Engineering Research Center of Karst Region Plant Resources Utilization & Breeding(Guizhou), Guiyang 550025, Guizhou Province, China
| | - Li Song
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, Guizhou Province, China; Guizhou Key Lab of Agro-Bioengineering, Guiyang 550025, Guizhou Province, China.
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Wu CD, Fan YB, Chen X, Cao JW, Ye JY, Feng ML, Liu XX, Sun WJ, Liu RN, Wang AY. Analysis of endophytic bacterial diversity in seeds of different genotypes of cotton and the suppression of Verticillium wilt pathogen infection by a synthetic microbial community. BMC PLANT BIOLOGY 2024; 24:263. [PMID: 38594616 PMCID: PMC11005247 DOI: 10.1186/s12870-024-04910-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND In agricultural production, fungal diseases significantly impact the yield and quality of cotton (Gossypium spp.) with Verticillium wilt posing a particularly severe threat. RESULTS This study is focused on investigating the effectiveness of endophytic microbial communities present in the seeds of disease-resistant cotton genotypes in the control of cotton Verticillium wilt. The technique of 16S ribosomal RNA (16S rRNA) amplicon sequencing identified a significant enrichment of the Bacillus genus in the resistant genotype Xinluzao 78, which differed from the endophytic bacterial community structure in the susceptible genotype Xinluzao 63. Specific enriched strains were isolated and screened from the seeds of Xinluzao 78 to further explore the biological functions of seed endophytes. A synthetic microbial community (SynCom) was constructed using the broken-rod model, and seeds of the susceptible genotype Xinluzao 63 in this community that had been soaked with the SynCom were found to significantly control the occurrence of Verticillium wilt and regulate the growth of cotton plants. Antibiotic screening techniques were used to preliminarily identify the colonization of strains in the community. These techniques revealed that the strains can colonize plant tissues and occupy ecological niches in cotton tissues through a priority effect, which prevents infection by pathogens. CONCLUSION This study highlights the key role of seed endophytes in driving plant disease defense and provides a theoretical basis for the future application of SynComs in agriculture.
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Affiliation(s)
- Chong-Die Wu
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Yong-Bin Fan
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Xue Chen
- College of Life Sciences, Shihezi University, Shihezi, China
| | - Jiang-Wei Cao
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Jing-Yi Ye
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Meng-Lei Feng
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Xing-Xing Liu
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Wen-Jing Sun
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Rui-Na Liu
- College of Life Sciences, Shihezi University, Shihezi, China
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China
| | - Ai-Ying Wang
- College of Life Sciences, Shihezi University, Shihezi, China.
- Key Laboratory of Oasis Town and Mountain-Basin System Ecology, Xinjiang Production and Construction Corps, Shihezi, China.
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Rojas-Sánchez B, Castelán-Sánchez H, Garfias-Zamora EY, Santoyo G. Diversity of the Maize Root Endosphere and Rhizosphere Microbiomes Modulated by the Inoculation with Pseudomonas fluorescens UM270 in a Milpa System. PLANTS (BASEL, SWITZERLAND) 2024; 13:954. [PMID: 38611483 PMCID: PMC11013257 DOI: 10.3390/plants13070954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024]
Abstract
Milpa is an agroecological production system based on the polyculture of plant species, with corn featuring as a central component. Traditionally, the milpa system does not require the application of chemicals, and so pest attacks and poor growth in poor soils can have adverse effects on its production. Therefore, the application of bioinoculants could be a strategy for improving crop growth and health; however, the effect of external inoculant agents on the endemic microbiota associated with corn has not been extensively studied. Here, the objective of this work was to fertilize a maize crop under a milpa agrosystem with the PGPR Pseudomonas fluorescens UM270, evaluating its impact on the diversity of the rhizosphere (rhizobiome) and root endophytic (root endobiome) microbiomes of maize plants. The endobiome of maize roots was evaluated by 16S rRNA and internal transcribed spacer region (ITS) sequencing, and the rhizobiome was assessed by metagenomic sequencing upon inoculation with the strain UM270. The results showed that UM270 inoculation of the rhizosphere of P. fluorescens UM270 did not increase alpha diversity in either the monoculture or milpa, but it did alter the endophytic microbiome of maize plant roots by stimulating the presence of bacterial operational taxonomic units (OTUs) of the genera Burkholderia and Pseudomonas (in a monoculture), whereas, in the milpa system, the PGPR stimulated greater endophytic diversity and the presence of genera such as Burkholderia, Variovorax, and N-fixing rhizobia genera, including Rhizobium, Mesorhizobium, and Bradyrhizobium. No clear association was found between fungal diversity and the presence of strain UM270, but beneficial fungi, such as Rizophagus irregularis and Exophiala pisciphila, were detected in the Milpa system. In addition, network analysis revealed unique interactions with species such as Stenotrophomonas sp., Burkholderia xenovorans, and Sphingobium yanoikuyae, which could potentially play beneficial roles in the plant. Finally, the UM270 strain does not seem to have a strong impact on the microbial diversity of the rhizosphere, but it does have a strong impact on some functions, such as trehalose synthesis, ammonium assimilation, and polyamine metabolism. The inoculation of UM270 biofertilizer in maize plants modifies the rhizo- and endophytic microbiomes with a high potential for stimulating plant growth and health in agroecological crop models.
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Affiliation(s)
- Blanca Rojas-Sánchez
- Genomic Diversity Lab, Institute of Chemical and Biological Research, Universidad Michoacana de San Nicolas de Hidalgo, Morelia 58030, Mexico; (B.R.-S.); (E.Y.G.-Z.)
| | - Hugo Castelán-Sánchez
- Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada;
| | - Esmeralda Y. Garfias-Zamora
- Genomic Diversity Lab, Institute of Chemical and Biological Research, Universidad Michoacana de San Nicolas de Hidalgo, Morelia 58030, Mexico; (B.R.-S.); (E.Y.G.-Z.)
| | - Gustavo Santoyo
- Department of Pathology and Laboratory Medicine, Western University, London, ON N6A 3K7, Canada;
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