Change in microbial communities, soil enzyme and metabolic activity in a Torreya grandis plantation in response to root rot disease

Feng, Yakai; Hu, Yuanyuan; Wu, Jiasheng; Chen, Junhui; Yrjälä, Kim; Yu, Weiwu

doi:10.1016/j.foreco.2018.10.028

Cited by 29 publications

(14 citation statements)

References 62 publications

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“…Compared with the control, the increase in soil fertility had positive effects on soil invertase and urease activities in our study, which illustrates this point [53]. In some autotoxic species, allelochemicals may cause deterioration of the soil substrate, thereby inhibiting the secretion and release of soil phosphatase by plant roots and soil microbial metabolic activities [11] and also affecting the conversion of soil organic P. Our results showed that the TP and AP contents upon different treatments were significantly higher than those in the control, whereas the soil phosphatase activity showed an opposite trend, with an increase in the concentration of the aqueous extract, and leaf AE concentration was always lower than in the control at 0.01-0.04 g•mL −1 . One potential reason for this is that the method of co-irrigation of extract and litter was adopted in this experiment, and the later decomposition of litter could supplement soil elements.…”

Section: Soil Nutrition and Enzyme Activity Responses To Aqueous Extrsupporting

confidence: 64%

“…One potential reason for this is that the method of co-irrigation of extract and litter was adopted in this experiment, and the later decomposition of litter could supplement soil elements. Furthermore, it is possible that the aqueous extract has a negative effect on the metabolic activity of roots and the composition and activity of soil microorganisms, thus changing the intensity of secretion, release, and modification of soil enzymes [11]. Although aqueous extract treatments supplemented the soil nutrients, they did not change the inhibitory effect of leaf AE on C. migao seedling growth, which also confirmed that an improvement in soil fertility could not alleviate the negative effects of autotoxicity on plants [8].…”

Section: Soil Nutrition and Enzyme Activity Responses To Aqueous Extrmentioning

confidence: 99%

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Autotoxicity Hinders the Natural Regeneration of Cinnamomum migao H. W. Li in Southwest China

Huang

Jing-zhong

Liu

et al. 2019

Forests

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Autotoxicity is a widespread phenomenon in nature and is considered to be the main factor affecting new natural recruitment of plant populations, which was proven in many natural populations. Cinnamomum migao H. W. Li is an endemic medicinal woody plant species mainly distributed in Southwestern China and is defined as an endangered species by the Red Paper of Endangered Plants in China. The lack of seedlings is considered a key reason for population degeneration; however, no studies were conducted to explain its causes. C. migao contains substances with high allelopathic potential, such as terpenoids, phenolics, and flavonoids, and has strong allelopathic effects on other species. Therefore, we speculate that one of the reasons for C. migao seedling scarcity in the wild is that it exhibits autotoxic allelopathy. In this study, which was performed from the perspective of autotoxicity, we collected leaves, pericarp, seeds, and branches of the same population; we simulated the effects of decomposition and release of litter from these different anatomical parts of C. migao in the field; and we conducted 210-day control experiments on seedling growth, with different concentration gradients, using associated aqueous extracts. The results showed that the leaf aqueous extract (leafAE) significantly inhibited growth indicators and increased damage of the lipid structure of the cell membrane of seedlings, suggesting that autotoxicity from C. migao is a factor restraining seedling growth. The results of the analyses of soil properties showed that, compared with the other treatments, leafAE treatment inhibited soil enzyme activity and also had an impact on soil fungi. Although leafAE could promote soil fertility to some extent, it did not change the effect of autotoxic substances on seedling growth. We conclude that autotoxicity is the main obstacle inhibiting seedling growth and the factor restraining the natural regeneration of C. migao.

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Section: Soil Nutrition and Enzyme Activity Responses To Aqueous Extrsupporting

confidence: 64%

Section: Soil Nutrition and Enzyme Activity Responses To Aqueous Extrmentioning

confidence: 99%

Autotoxicity Hinders the Natural Regeneration of Cinnamomum migao H. W. Li in Southwest China

Huang

Jing-zhong

Liu

et al. 2019

Forests

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“…The unbalance of microbial community will lead to plant disease, and the microbial community structure will also change after the plant was infected with pathogens (Hamel et al, 2005 ). Feng et al ( 2018 ) study revealed that after Torreya grandis was infected by the F. oxysporum species complex, the growth and vitality of T. grandis , soil organic carbon content, and soil microbial abundance were decreased. Lee et al ( 2021 ) investigated that the relative abundances of Actinobacteria and Firmicutes phyla were lower in diseased rhizosphere soil than in healthy rhizosphere soil, and disruption of two phyla caused the incidence of bacterial wilt disease.…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of the Microbial Community Structures Between Healthy and Anthracnose-Infected Strawberry Rhizosphere Soils Using Illumina Sequencing Technology in Yunnan Province, Southwest of China

Chen²,

Zhou³

et al. 2022

Front. Microbiol.

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Anthracnose caused by Colletotrichum spp. was widespread in recent years and resulted in great damage to strawberry production. Soil microbial communities were key contributors to host nutrition, development, and immunity; however, the difference between the microbial communities of healthy and anthracnose-infected strawberry rhizosphere soils remains unclear. In this study, the Illumina sequencing technique was used to comparatively study the prokaryotic and fungal community compositions and structures between healthy and anthracnose-infected strawberry rhizosphere soils in Yuxi, Yunnan Province. Both microbial community diversities and richness of anthracnose-infected strawberry rhizosphere soils were higher than those of healthy strawberry rhizosphere soils. A total of 2,518 prokaryotic and 556 fungal operational taxonomic units (OTUs) were obtained at the 97% similarity threshold. Proteobacteria, Thaumarchaeota, and Acidobacteria were the dominant prokaryotic phyla; Ascomycota, unclassified_k__Fungi, and Mortierellomycota were the dominant fungal phyla. The relative abundances of beneficial bacterial phyla Actinobacteria and Firmicutes, genera Streptomyces, Azospirillum, and Bacillus were significantly reduced in anthracnose-infected strawberry rhizosphere soils; the relative abundance of beneficial fungal species Trichoderma asperellum shows a similar tendency with bacterial abundance. Besides Colletotrichum, 15 other potential fungal pathogen genera and seven fungal pathogen species were identified; among the potential pathogen genera and species, eight pathogen genera and Fusarium oxysporum showed significant differences between healthy and anthracnose-infected strawberry rhizosphere soils. The results suggested that strawberry planted in this area may be infected by other fungal pathogens except for Colletotrichum spp. Our present research will provide theoretical basis and data reference for the isolation and identification of strawberry pathogens and potential probiotics in future works.

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“…Furthermore, studies have shown that plants change the composition of the soil community, and this change must then, in turn, affect the rate of growth of the plant or population ( Bever, 1994 ). Microbial community is an indicator of soil health and quality ( Schloter et al, 2003 ; Feng et al, 2019 ). A healthy soil will guarantee normal growth of plants.…”

Section: Discussionmentioning

confidence: 99%

“…At the beginning, the damage of these diseases is serious, but later, the harmful substances are gradually degraded, and the diseases are also reduced or even disappeared, which is closely related to the mechanism of RSD technology. A large number of studies have shown that the interactions among plant roots, soil bacteria, and soil properties modulate plant performance by promoting or suppressing soil-borne pathogens, soil organic matter decomposition, and nutrient circulation and utilization ( Wang et al, 2018 ; Feng et al, 2019 ). We speculate that the altered soil properties and enzyme activity inevitably affected soil microorganisms, soil animals, and plant roots.…”

Section: Discussionmentioning

confidence: 99%

Different Responses of Soil Environmental Factors, Soil Bacterial Community, and Root Performance to Reductive Soil Disinfestation and Soil Fumigant Chloropicrin

Yan

Miao

et al. 2021

Front. Microbiol.

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Reductive soil disinfestation (RSD) and soil fumigant chloropicrin (SFC) are two common agricultural strategies for the elimination of soil-borne pathogens. However, the differences in soil environmental factors, soil bacterial microbiome, and root performance between SFC and RSD are poorly understood. In this study, three soil treatments, untreated control (CK), SFC with 0.5 t⋅ha–1 chloropicrin, and RSD with 15 t⋅ha–1 animal feces, were compared. We evaluated their effects on soil environmental factors, bacterial community structure, and root activity using chemical analysis and high-throughput sequencing. RSD treatment improved soil composition structure, bacterial diversity, and root performance to a greater extent. Carbon source utilization preference and bacterial community structure were strikingly altered by SFC and RSD practices. Bacterial richness, diversity, and evenness were notably lowered in the SFC- and RSD-treated soil compared with the CK-treated soil. However, RSD-treated soil harbored distinct unique and core microbiomes that were composed of more abundant and diverse potentially disease-suppressive and organic-decomposable agents. Also, soil bacterial diversity and composition were closely related to soil physicochemical properties and enzyme activity, of which pH, available Na (ANa), available Mg (AMg), available Mn (AMn), total Na (TNa), total Ca (TCa), total Cu (TCu), total Sr (TSr), urease (S-UE), acid phosphatase (S-ACP), and sucrase (S-SC) were the main drivers. Moreover, RSD treatment also significantly increased ginseng root activity. Collectively, these results suggest that RSD practices could considerably restore soil nutrient structure and bacterial diversity and improve root performance, which can be applied as a potential agricultural practice for the development of disease-suppressive soil.

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Change in microbial communities, soil enzyme and metabolic activity in a Torreya grandis plantation in response to root rot disease

Cited by 29 publications

References 62 publications

Autotoxicity Hinders the Natural Regeneration of Cinnamomum migao H. W. Li in Southwest China

Autotoxicity Hinders the Natural Regeneration of Cinnamomum migao H. W. Li in Southwest China

Comparative Analysis of the Microbial Community Structures Between Healthy and Anthracnose-Infected Strawberry Rhizosphere Soils Using Illumina Sequencing Technology in Yunnan Province, Southwest of China

Different Responses of Soil Environmental Factors, Soil Bacterial Community, and Root Performance to Reductive Soil Disinfestation and Soil Fumigant Chloropicrin

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