Characterization of the belowground microbial community and co-occurrence networks of tobacco plants infected with bacterial wilt disease

Wang, Haiting; Wu, Chuanfa; Zhang, Haoqing; Xiao, Mouliang; Ge, Tida; Zhou, Zhi; Liu, Yongjun; Peng, Shuguang; Peng, Ping; Chen, Jianping

doi:10.1007/s11274-022-03347-9

Cited by 9 publications

(7 citation statements)

References 90 publications

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Section: Discussionsupporting

confidence: 90%

“…The content of available K in the soil of healthy tobacco plants was high, which was consistent with the research results obtained by the authors of [21]. Improving K nutrition was generally conducive to enhancing the disease resistance of host plants [21]. Previous studies have suggested that the content of available K in soil was affected by temperature, fertilization, soil pH, and soil organic matter content [22,23].…”

Section: Discussionsupporting

confidence: 88%

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Physiochemical Properties and Microflora of the Rhizosphere Soil of Tobacco Plants with and without Bacterial Wilt

Zheng

Zhang

et al. 2023

Sustainability

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Bacterial wilt is a destructive soilborne disease caused by Ralstonia solanacearum, posing a severe threat to plants in the Solanaceae family. It impacts on tobacco productivity worldwide. This study was conducted to analyze the changes in the soil’s physical and chemical properties, the number of microbes, and the bacterial diversity of the rhizosphere soil before and after the wilt disease. The rhizosphere soil of healthy and diseased tobacco plants was collected from Pucheng, Nanping, Fujian Province, Southern China. The results revealed significant differences in the trends of physical and chemical properties of the soil of healthy and diseased plants. The soil pH, available potassium (K), available phosphorous (P), and organic matter contents (SOM) were lower in the rhizosphere soil for healthy plants than for pre-diseased plants (HW). Only the available P, among all physical and chemical properties in the rhizosphere of diseased plants (HS), was significantly lower than those for pre-diseased plants (HW), changing from 149.59 mg/kg to 59.19 mg/kg. The order of numbers of the three main microbes in the rhizosphere soil for healthy plants (HC) and pre-diseased plants was the following: bacteria > actinomycetes > fungi. The number of actinomycetes in the soil of the diseased tobacco plants increased significantly. A comparison of the rhizosphere soil of diseased and healthy tobacco plants showed that the relative abundance of the bacterial community in the rhizosphere soil of the pathogenic tobacco plants changed significantly. The community diversity was increased, and the Pseudomonadaceae, to which the bacterial pathogen of bacterial wilt belonged, rose to a certain extent. Both pre-diseased and healthy plants showed changes in the physical and chemical properties, microbial quantity, and microbial diversity, thus proving that tobacco disease was closely related to the soil’s ecological environment.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 88%

Physiochemical Properties and Microflora of the Rhizosphere Soil of Tobacco Plants with and without Bacterial Wilt

Zheng

Zhang

et al. 2023

Sustainability

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“…Similarly, healthy Euonymus japonicus leaves harbored greater microbial abundances and diversity compared to powdery mildew diseased leaves (Zhang et al, 2019 ). Moreover, a highly diverse bacterial diversity tends to be conducive to resisting pathogen infection (Mallon et al, 2015 ; Wang et al, 2022 ). In addition, the investigation of phyllosphere microorganisms has received less attention in comparison to microorganisms inhabiting the belowground portions of plants, which have been extensively studied.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the investigation of phyllosphere microorganisms has received less attention in comparison to microorganisms inhabiting the belowground portions of plants, which have been extensively studied. Interestingly, bacterial diversity in the underground parts (i.e., roots, rhizosphere, and soil) of diseased plants is higher than that in healthy plants (Jiang et al, 2023 ; Wang et al, 2022 ). This phenomenon can be attributed to the “crying for help” strategy employed by plants, whereby they recruit beneficial microbes from soil to suppress disease, leading to increased community diversity (Dicke, 2009 ).…”

Section: Discussionmentioning

confidence: 99%

Microbial community and chemical composition of cigar tobacco (Nicotiana tabacum L.) leaves altered by tobacco wildfire disease

Si,

Cui,

Liu

et al. 2023

Plant Direct

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Tobacco wildfire disease caused by Pseudomonas syringae pv. tabaci is one of the most destructive foliar bacterial diseases occurring worldwide. However, the effect of wildfire disease on cigar tobacco leaves has not been clarified in detail. In this study, the differences in microbiota and chemical factors between wildfire disease‐infected leaves and healthy leaves were characterized using high‐throughput Illumina sequencing and a continuous‐flow analytical system, respectively. The results demonstrated significant alterations in the structure of the phyllosphere microbial community in response to wildfire disease, and the infection of P. syringae pv. tabaci led to a decrease in bacterial richness and diversity. Furthermore, the content of nicotine, protein, total nitrogen, and Cl− in diseased leaves significantly increased by 47.86%, 17.46%, 20.08%, and 72.77% in comparison to healthy leaves, while the levels of total sugar and reducing sugar decreased by 59.59% and 70.0%, respectively. Notably, the wildfire disease had little effect on the content of starch and K+. Redundancy analysis revealed that Pseudomonas, Staphylococcus, Cladosporium, and Wallemia displayed positive correlations with nicotine, protein, total nitrogen, Cl− and K+ contents, while Pantoea, Erwinia, Sphingomonas, Terrisporobacter, Aspergillus, Alternaria, Sampaiozyma, and Didymella displayed positive correlations with total sugar and reducing sugar contents. Brevibacterium, Brachybacterium, and Janibacter were found to be enriched in diseased leaves, suggesting their potential role in disease suppression. Co‐occurrence network analysis indicated that positive correlations were prevalent in microbial networks, and the bacterial network of healthy tobacco leaves exhibited greater complexity compared to diseased tobacco leaves. This study revealed the impact of wildfire disease on the microbial community and chemical compositions of tobacco leaves and provides new insights for the biological control of tobacco wildfire disease.

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“…This study demonstrates that CZHZ wilt is caused by fungal CWD, and the main pathogen is Fusarium oxysporum f. sp. chrysanthemi [ 8 , 9 ]. Zhu Yujing et al demonstrated that the growth of Fusarium is highly susceptible to environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Investigation of the Relationship between Two Soil Microbial Communities (Bacteria and Fungi) and Chrysanthemum Zawadskii (Herb.) Tzvel. Wilt Disease

Wu,

Peng,

Song

2024

Microorganisms

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Chrysanthemum wilt is a plant disease that exerts a substantial influence on the cultivation of Chrysanthemum zawadskii (Herb.) for tea and beverage production. The rhizosphere microbial population exhibits a direct correlation with the overall health of plants. Therefore, studying the rhizosphere microbial community of Chrysanthemum zawadskii (Herb.) Tzvel. is of great significance for finding methods to control this disease. This study obtained rhizosphere soil samples from both diseased and healthy plant individuals and utilized high-throughput sequencing technology to analyze their microbial composition. The results showed that the rhizosphere microbial diversity decreased significantly, and the microbial community structure changed significantly. In the affected soil, the relative abundance of pathogenic microorganisms such as rhizospora and Phytophthora was greatly increased, while the relative abundance of beneficial microorganisms such as antagonistic fungi and actinomyces was greatly decreased. In addition, this study also found that soil environmental variables have an important impact on plant resistance; the environmental factors mainly include soil properties, content of major microorganisms, and resistance characteristics of samples. Redundancy analysis showed that the drug-resistant population had a greater impact on the 10 species with the highest abundance, and the environmental factors were more closely related to the sensitive population. In the fungal community, the resistant sample group was more sensitive to the influence of environmental factors and high-abundance fungi. These findings provide a theoretical basis for improving microbial community structure by optimizing fertilization structure, thus affecting the distribution of bacteria and fungi, and thus improving the disease resistance of chrysanthemum. In addition, by regulating and optimizing microbial community structure, new ideas and methods can be provided for the prevention and control of chrysanthemum wilt disease.

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Characterization of the belowground microbial community and co-occurrence networks of tobacco plants infected with bacterial wilt disease

Cited by 9 publications

References 90 publications

Physiochemical Properties and Microflora of the Rhizosphere Soil of Tobacco Plants with and without Bacterial Wilt

Physiochemical Properties and Microflora of the Rhizosphere Soil of Tobacco Plants with and without Bacterial Wilt

Microbial community and chemical composition of cigar tobacco (Nicotiana tabacum L.) leaves altered by tobacco wildfire disease

An Integrated Investigation of the Relationship between Two Soil Microbial Communities (Bacteria and Fungi) and Chrysanthemum Zawadskii (Herb.) Tzvel. Wilt Disease

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