Microbial interactions within beneficial consortia promote soil health

Wu, Di; Wang, Weixiong; Yao, Yanpo; Li, Hongtao; Wang, Qi; Niu, Ben

doi:10.1016/j.scitotenv.2023.165801

Cited by 19 publications

(18 citation statements)

References 205 publications

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“…2 ). With abundant root exudates in the rhizosphere area, many different microbes can co-exist and work synergistically to transform unusable substrates to usable substrates and reduce toxic substances ( McLaughlin et al, 2023 ; Wu et al, 2023 ). The usable substrates can further support the growth of many microbial saprophytes, which results in the relatively more abundant fungal and bacterial communities in the rhizosphere ( Hassan & Mathesius, 2012 ; Trivedi et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

“…This may be explained by that the microbial communities rely on cooperative relationships to improve metabolic efficiency and promote soil and root colonization ( Chepsergon & Moleleki, 2023 ; Ge et al, 2023 ; Zhang et al, 2024 ), such as the microbial interaction forms of crossfeeding, syntrophy, physical complex formation, etc . ( Wu et al, 2023 ). In addition, some of the positive interactions may also be caused by spatial coincidence, rather than actual ecological interactions ( Liu et al, 2023a ).…”

Section: Discussionmentioning

confidence: 99%

“…In response to environmental stresses and biotic pathogens, the frequency of microbial interactions generally increases, and confers beneficial effects to improve plant resistance ( Ge et al, 2023 ; Zhou et al, 2023 ). Many of these microbial interactions are predictable, and can be characterized and synthesized to form brief communities for ecological and agricultural applications ( Wu et al, 2023 ). However, the microbial assembly and interactions of most plants, especially those plants with specific ecological and agricultural attributes, are still not completely studied.…”

Section: Introductionmentioning

confidence: 99%

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The rhizosphere and root selections intensify fungi-bacteria interaction in abiotic stress-resistant plants

Huang,

Lei,

2024

PeerJ

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The microbial communities, inhabiting around and in plant roots, are largely influenced by the compartment effect, and in turn, promote the growth and stress resistance of the plant. However, how soil microbes are selected to the rhizosphere, and further into the roots is still not well understood. Here, we profiled the fungal, bacterial communities and their interactions in the bulk soils, rhizosphere soils and roots of eleven stress-resistant plant species after six months of growth. The results showed that the root selection (from the rhizosphere soils to the roots) was stronger than the rhizosphere selection (from the bulk soils to the rhizosphere soils) in: (1) filtering stricter on the fungal (28.5% to 40.1%) and bacterial (48.9% to 68.1%) amplicon sequence variants (ASVs), (2) depleting more shared fungal (290 to 56) and bacterial (691 to 2) ASVs measured by relative abundance, and (3) increasing the significant fungi-bacteria crosskingdom correlations (142 to 110). In addition, the root selection, but not the rhizosphere selection, significantly increased the fungi to bacteria ratios (f:b) of the observed species and shannon diversity index, indicating unbalanced effects to the fungal and bacteria communities exerted by the root selection. Based on the results of network analysis, the unbalanced root selection effects were associated with increased numbers of negative interaction (140 to 99) and crosskingdom interaction (123 to 92), suggesting the root selection intensifies the negative fungi-bacteria interactions in the roots. Our findings provide insights into the complexity of crosskingdom interactions and improve the understanding of microbiome assembly in the rhizosphere and roots.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The rhizosphere and root selections intensify fungi-bacteria interaction in abiotic stress-resistant plants

Huang,

Lei,

2024

PeerJ

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“…To clarify this, we will select and set more sampling sites in each of the four sampling site regions (Yinchuan, Otogqianqi, Tongliao and Zhangwu) across north China based on their climate data to build the gradients of temperature and precipitation of each sampling site region or establish gradients of temperature and humidity in the controlled conditions of greenhouse or laboratory to better interpretate the correlation between the yellowhorn phyllosphere bacterial communities and climatic variables in our future work. Furthermore, the reductionist synthetic community (RSC) method based on microbial cultivation (Niu et al, 2017;Niu et al, 2020;Wu et al, 2023), together with the plant phenomics technology approach (Roitsch et al, 2022;Zavafer et al, 2023), may be employed to validate the opposite responses to rainfall and temperature.…”

Section: Discussionmentioning

confidence: 99%

Differentiated responses of the phyllosphere bacterial community of the yellowhorn tree to precipitation and temperature regimes across Northern China

Wang,

Hu,

Chang

et al. 2023

Front. Plant Sci.

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IntroductionAs an ephemeral and oligotrophic environment, the phyllosphere harbors many highly diverse microorganisms. Importantly, it is known that their colonization of plant leaf surfaces is considerably influenced by a few abiotic factors related to climatic conditions. Yet how the dynamics of phyllosphere bacterial community assembly are shaped by detailed climatological elements, such as various bioclimatic variables, remains poorly understood.MethodsUsing high-throughput 16S rRNA gene amplicon sequencing technology, we analyzed the bacterial communities inhabiting the leaf surfaces of an oilseed tree, yellowhorn (Xanthoceras sorbifolium), grown at four sites (Yinchuan, Otogqianqi, Tongliao, and Zhangwu) whose climatic status differs in northern China.Results and DiscussionWe found that the yellowhorn phyllosphere’s bacterial community was generally dominated by four phyla: Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes. Nevertheless, bacterial community composition differed significantly among the four sampled site regions, indicating the possible impact of climatological factors upon the phyllosphere microbiome. Interestingly, we also noted that the α-diversities of phyllosphere microbiota showed strong positive or negative correlation with 13 bioclimatic factors (including 7 precipitation factors and 6 temperature factors). Furthermore, the relative abundances of 55 amplicon sequence variants (ASVs), including three ASVs representing two keystone taxa (the genera Curtobacterium and Streptomyces), exhibited significant yet contrary responses to the precipitation and temperature climatic variables. That pattern was consistent with all ASVs’ trends of possessing opposite correlations to those two parameter classes. In addition, the total number of links and nodes, which conveys community network complexity, increased with rising values of most temperature variables. Besides that, remarkably positive relevance was found between average clustering coefficient and most precipitation variables. Altogether, these results suggest the yellowhorn phyllosphere bacterial community is capable of responding to variation in rainfall and temperature regimes in distinctive ways.

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“…Several studies on tea garden soils have revealed the presence of a vast array of microorganisms which are linked to the quality of tea produced from the soil (Fu et al, 2021;Kui et al, 2021;Bag et al, 2022), particularly as soil microbial communities participate in promoting soil health and suppressing plant pathogens (Wu et al, 2023). Based on culture-dependent approach and molecular identification of bacterial isolates through 16S rRNA gene sequencing, keystone bacteria genera such as Bacillus, Burkholderia, Serratia and Arthrobacter (Table 1) have been reported to display a wide range of growth promoting activities.…”

Section: Introductionmentioning

confidence: 99%

Understanding and exploring the diversity of soil microorganisms in tea (Camellia sinensis) gardens: toward sustainable tea production

Jibola-Shittu,

Heng,

Keyhani

et al. 2024

Front. Microbiol.

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Leaves of Camellia sinensis plants are used to produce tea, one of the most consumed beverages worldwide, containing a wide variety of bioactive compounds that help to promote human health. Tea cultivation is economically important, and its sustainable production can have significant consequences in providing agricultural opportunities and lowering extreme poverty. Soil parameters are well known to affect the quality of the resultant leaves and consequently, the understanding of the diversity and functions of soil microorganisms in tea gardens will provide insight to harnessing soil microbial communities to improve tea yield and quality. Current analyses indicate that tea garden soils possess a rich composition of diverse microorganisms (bacteria and fungi) of which the bacterial Proteobacteria, Actinobacteria, Acidobacteria, Firmicutes and Chloroflexi and fungal Ascomycota, Basidiomycota, Glomeromycota are the prominent groups. When optimized, these microbes’ function in keeping garden soil ecosystems balanced by acting on nutrient cycling processes, biofertilizers, biocontrol of pests and pathogens, and bioremediation of persistent organic chemicals. Here, we summarize research on the activities of (tea garden) soil microorganisms as biofertilizers, biological control agents and as bioremediators to improve soil health and consequently, tea yield and quality, focusing mainly on bacterial and fungal members. Recent advances in molecular techniques that characterize the diverse microorganisms in tea gardens are examined. In terms of viruses there is a paucity of information regarding any beneficial functions of soil viruses in tea gardens, although in some instances insect pathogenic viruses have been used to control tea pests. The potential of soil microorganisms is reported here, as well as recent techniques used to study microbial diversity and their genetic manipulation, aimed at improving the yield and quality of tea plants for sustainable production.

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Microbial interactions within beneficial consortia promote soil health

Cited by 19 publications

References 205 publications

The rhizosphere and root selections intensify fungi-bacteria interaction in abiotic stress-resistant plants

The rhizosphere and root selections intensify fungi-bacteria interaction in abiotic stress-resistant plants

Differentiated responses of the phyllosphere bacterial community of the yellowhorn tree to precipitation and temperature regimes across Northern China

Understanding and exploring the diversity of soil microorganisms in tea (Camellia sinensis) gardens: toward sustainable tea production

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