Tea Plants With Gray Blight Have Altered Root Exudates That Recruit a Beneficial Rhizosphere Microbiome to Prime Immunity Against Aboveground Pathogen Infection

Wang, Qiaomei; Yang, Ran; Peng, Wenshu; Yang, Yi; Ma, Xiaowei; Zhang, Wenjie; Ji, Aibing; Liu, Li; Liu, Pei; Yan, Liang; Hu, Xiaoge

doi:10.3389/fmicb.2021.774438

Cited by 23 publications

(11 citation statements)

References 53 publications

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“…For example, Neorhizobium galegae , Lysobacter dokdonensis , and Ensifer adhaerens can prey on bacteria and can be used to control Tobacco bacterial wilt (W. Ahmed et al, 2022 ); P. camelliae-sinensis infection can be used to prevent and treat tea gray blight disease (Q. Wang et al, 2021 ). Our studies identified dominant fungal communities in healthy and diseased plant soils respectively, and we suggest that core communities in healthy plant soils help promote WYM resistance.…”

Section: Discussionmentioning

confidence: 99%

Changes in soil fungal communities after onset of wheat yellow mosaic virus disease

Hu²,

Cai³

et al. 2022

Front. Bioeng. Biotechnol.

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Rhizosphere-associated microbes have important implications for plant health, but knowledge of the association between the pathological conditions of soil-borne virus-infected wheat and soil microbial communities, especially changes in fungal communities, remains limited. We investigated the succession of fungal communities from bulk soil to wheat rhizosphere soil in both infected and healthy plants using amplicon sequencing methods, and assessed their potential role in plant health. The results showed that the diversity of fungi in wheat rhizosphere and bulk soils significantly differed post wheat yellow mosaic virus disease onset. The structure differences in fungal community at the two wheat health states or two compartment niches were evident, soil physicochemical properties (i.e., NH4+) contribute to differences in fungal community structure and alpha diversity. Comparison analysis showed Mortierellomycetes and Dothideomycetes as dominant communities in healthy wheat soils at class level. The genus Pyronemataceae and Solicoccozyma were significantly are significantly enriched in rhizosphere soil of diseased plant, the genus Cystofilobasidium, Cladosporium, Mortierella, and Stephanonectria are significantly enriched in bulk soil of healthy plant. Co-occurrence network analysis showed that the fungi in healthy wheat soil has higher mutual benefit and connectivity compared with diseased wheat. The results of this study demonstrated that the occurrence of wheat yellow mosaic virus diseases altered both fungal community diversity and composition, and that NH4+ is the most important soil physicochemical factor influencing fungal diversity and community composition.

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Section: Discussionmentioning

confidence: 99%

Changes in soil fungal communities after onset of wheat yellow mosaic virus disease

Hu²,

Cai³

et al. 2022

Front. Bioeng. Biotechnol.

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“…The diversity of soil microorganisms is closely related to plant growth, stress tolerance, and health (Ishaq, 2017 ; Bziuk et al, 2021 ; Fadiji et al, 2021 ). An increase in soil bacterial diversity may help Pu-erh tea to better cope with a changing environment, diseases, and pests and may increase biomass or quality (Wang et al, 2021 ; Yang et al, 2021 ). In addition, Sphingomonas, Nitrospira , and Reyranella were significantly enriched in soil samples near the lightning rod relative to soil samples far from the lightning rod.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, Sphingomonas, Nitrospira , and Reyranella were significantly enriched in soil samples near the lightning rod relative to soil samples far from the lightning rod. Sphingomonas has been widely reported to play an important role in ecological restoration and plant growth promotion (Wang et al, 2021 ). As an aerobic chemolithoautotrophic nitrite-oxidizing bacterium, Nitrospira plays an important role in nitrification (Daims and Wagner, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Effects of Lightning on Rhizosphere Soil Properties, Bacterial Communities, and Active Components of Camellia sinensis var. assamica

Chen

et al. 2022

Front. Microbiol.

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Lightning rods have been developed to prevent damage caused by lightning to organisms. However, the biological effect of the current transmitted into the soil through lightning rods is unknown. In this study, we analyzed the effects of lightning on soil properties, the microbial community, and the active components of Pu-erh tea (Camellia sinensis var. assamica) near lightning rods. The results showed that the contents of organic matter and available potassium, copper, and calcium in rhizosphere soil near the lightning rod were significantly higher than those in control soil (P < 0.05), while the contents of total potassium, phosphorus, iron, magnesium, and aluminum decreased. Lightning significantly increased the bacterial diversity of Pu-erh rhizosphere soil compared to control soil samples (P < 0.05). Sphingomonas, Nitrospira, and Reyranella were significantly enriched in soil samples near the lightning rod compared to soil samples far from the lightning rod. Clusters of Orthologous Groups (COG) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses indicated that adenosine/AMP kinase, chitodextrinase, flavorubredoxin, nucleotide metabolism, and carbohydrate digestion and absorption were significantly enriched in the rhizosphere soil samples near the lightning rod compared to the control samples (P < 0.05). β diversity analysis indicated the grounding of the lightning rod contributed to the community differentiation of rhizosphere bacteria. Amino acids, polyphenols, and soluble sugar increased in Pu-erh tea near the lightning rod, while the contents of catechin and anthocyanin decreased in Pu-erh tea near the lightning rod compared with the control sample (P < 0.05). Significant correlations were found among microbial indicators, soil properties, and Pu 'er tea components. This study serves as the first report on the effects of lightning rods on soil properties, microecology, and plant metabolism, which promotes the understanding of the biological effects of lightning, and provides a reference for the rational use of lightning resources.

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“…Plants sown and grown on a soil previously occupied by Hpa -infected plants were more resistant to Hpa than plants grown on soil conditioned by uninfected plants 13 . Infections by other leaf pathogens such as the bacterium Pseudomonas syringae 14,15 , the fungus Pseudopestalotiopsis camelliae-sinensis 16 , or the root-feeding insect herbivore Delia radicum 17 were later also shown to result in a beneficial microbial community in the soil that can persist and protect a subsequent population of plants. Thus, plants dynamically steer their microbiota upon pathogen attack to create a persistent protective soil microbiome, called a soil-borne legacy (SBL) 18,19 .…”

Section: Mainmentioning

confidence: 99%

Congruent downy mildew-associated microbiomes reduce plant disease and function as transferable resistobiomes

Goossens

Spooren

Baremans

et al. 2023

Preprint

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Root-associated microbiota can protect plants against severe disease outbreaks. In the model-plant Arabidopsis thaliana, leaf infection with the obligate downy mildew pathogen Hyaloperonospora arabidopsidis (Hpa) results in a shift in the root exudation profile, therewith promoting the growth of a selective root microbiome that induces a systemic resistance against Hpa in the above-ground plant parts. Here we show that, additionally, a conserved subcommunity of the recruited soil microbiota becomes part of a pathogen-associated microbiome in the phyllosphere that is vertically transmitted with the spores of the pathogen to consecutively infected host plants. This subcommunity of Hpa-associated microbiota (HAM) limits pathogen infection and is therefore coined a resistobiome. The HAM resistobiome consists of a small number of bacterial species and was first found in our routinely maintained laboratory cultures of independent Hpa strains. When co-inoculated with Hpa spores, the HAM rapidly dominates the phyllosphere of infected plants, negatively impacting Hpa spore formation. Remarkably, isogenic bacterial isolates of the abundantly-present HAM species were also found in strictly separated Hpa cultures across Europe, and even in early published genomes of this obligate biotroph. Our results highlight that pathogen-infected plants can recruit protective microbiota via their roots to the shoots where they become part of a pathogen-associated resistobiome that helps the plant to fight pathogen infection. Understanding the mechanisms by which pathogen-associated resistobiomes are formed will enable the development of microbiome-assisted crop varieties that rely less on chemical crop protection.

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Tea Plants With Gray Blight Have Altered Root Exudates That Recruit a Beneficial Rhizosphere Microbiome to Prime Immunity Against Aboveground Pathogen Infection

Cited by 23 publications

References 53 publications

Changes in soil fungal communities after onset of wheat yellow mosaic virus disease

Changes in soil fungal communities after onset of wheat yellow mosaic virus disease

Effects of Lightning on Rhizosphere Soil Properties, Bacterial Communities, and Active Components of Camellia sinensis var. assamica

Congruent downy mildew-associated microbiomes reduce plant disease and function as transferable resistobiomes

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