Disease-induced changes in plant microbiome assembly and functional adaptation

Microbiome, Год журнала: 2021, Номер 9(1)

Опубликована: Сен. 15, 2021

The plant microbiome is an integral part of the host and increasingly recognized as playing fundamental roles in growth health. Increasing evidence indicates that rhizosphere recruits beneficial microbes to suppress soil-borne pathogens. However, ecological processes govern assembly functions below- aboveground compartments under pathogen invasion are not fully understood. Here, we studied bacterial fungal communities associated with 12 (e.g., soils, roots, stems, fruits) chili pepper (Capsicum annuum L.) using amplicons (16S ITS) metagenomics approaches at main production sites China investigated how Fusarium wilt disease (FWD) affects assembly, co-occurrence patterns, plant-associated microbiomes.The amplicon data analyses revealed FWD affected less on reproductive organs (fruit) than vegetative (root stem), strongest impact upper stem epidermis. Fungal intra-kingdom networks were stable their more sensitive communities. analysis microbial interkingdom network further indicated destabilized induced importance taxa. Although diseased plants susceptible colonization by other pathogenic fungi, can also recruit potential bacteria. Some taxa enriched identified core for microbiomes hub networks. On hand, metagenomic significant enrichment several functional genes involved detoxification, biofilm formation, plant-microbiome signaling pathways (i.e., chemotaxis) plants.Together, demonstrate a could bacteria mitigate changes organ facilitate or its offspring survival. may attract through modulation pathways. These findings significantly advance our understanding interactions provide important harnessing sustainable agriculture. Video abstract.

Язык: Английский

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The ecology of the plastisphere: Microbial composition, function, assembly, and network in the freshwater and seawater ecosystems

Water Research, Год журнала: 2021, Номер 202, С. 117428 - 117428

Опубликована: Июль 15, 2021

Язык: Английский

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Diversity and ecology of protists revealed by metabarcoding

Current Biology, Год журнала: 2021, Номер 31(19), С. R1267 - R1280

Опубликована: Окт. 1, 2021

Protists are the dominant eukaryotes in biosphere where they play key functional roles. While protists have been studied for over a century, it is high-throughput sequencing of molecular markers from environmental samples — approach metabarcoding that has revealed just how diverse, and abundant, these small organisms are. Metabarcoding now routine to survey diversity, so data rapidly accumulated multitude environments at different sampling scales. This mass provided unprecedented opportunities study taxonomic diversity protists, this organised space time. Here, we use as common thread discuss state knowledge protist research, technical considerations important insights gained on patterns processes might structured diversity. In addition insights, conclude verge an exciting added dimension thanks maturation long-read sequencing, robust eco-evolutionary framework within reach.

Язык: Английский

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Destabilized microbial networks with distinct performances of abundant and rare biospheres in maintaining networks under increasing salinity stress

iMeta, Год журнала: 2023, Номер 2(1)

Опубликована: Янв. 9, 2023

Abstract Global changes such as seawater intrusion and freshwater resource salinization increase environmental stress imposed on the aquatic microbiome. A strong predictive understanding of responses microbiome to will help in coping with “gray rhino” events environment, thereby contributing an ecologically sustainable future. Considering that microbial ecological networks are tied stability ecosystem functioning abundant rare biospheres different biogeographic patterns important drivers functioning, roles maintaining need be clarified. Here we showed that, increasing salinity induced by freshwater‐to‐seawater transition, diversity reduced significantly taxonomic structure experienced a succession. The complexity were diminished stress. composition microorganisms supporting underwent sharp turnovers during biosphere behaving more robustly than biosphere. Notably, played much role stabilizing under low‐stress environments, but difference between their relative importance narrowed stress, suggesting weakened “Matthew effect” world. With in‐depth insights into ecology our findings highlight adjusting conservation strategies for maintain functions services response rising

Язык: Английский

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Trophic relationships between protists and bacteria and fungi drive the biogeography of rhizosphere soil microbial community and impact plant physiological and ecological functions

Microbiological Research, Год журнала: 2024, Номер 280, С. 127603 - 127603

Опубликована: Янв. 7, 2024

Rhizosphere microorganisms play a vital role in enhancing plant health, productivity, and the accumulation of secondary metabolites. Currently, there is limited understanding ecological processes that control assembly community. To address microbial interactions for functioning rhizosphere soil microbiota, we collected samples from Anisodus tanguticus on Tibetan Plateau spanning 1500 kilometers, sequenced bacteria, fungi, archaea, protist communities. We observed significant but weak distance-decay relationship communities soil. Our comprehensive analysis spatial, abiotic, biotic factors showed trophic relationships between protists bacteria fungi predominantly influenced alpha beta diversity bacterial, fungal, protistan communities, while abiotic had greater impact archaeal including pH, available phosphorus, total phosphorus mean annual temperature. Importantly, more influence physiological functions compared to individual microorganisms. Network analyses revealed occupy central position co-occurrence network crucial connector within this The addition increased stability networks. Overall, our findings indicate an important microbiota. Bacterial serve as link different kingdoms These help us fully harness beneficial plants achieve sustainable use biological resources.

Язык: Английский

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Towards revealing the global diversity and community assembly of soil eukaryotes

Ecology Letters, Год журнала: 2021, Номер 25(1), С. 65 - 76

Опубликована: Окт. 25, 2021

Soil fungi, protists, and animals (i.e., the eukaryome) play a critical role in key ecosystem functions terrestrial ecosystems. Yet, we lack holistic understanding of processes shaping global distribution eukaryome. We conducted molecular analysis 193 composite soil samples spanning world's major biomes. Our showed that importance selection was higher community assemblage smaller-bodied wider niche breadth organisms. pH mean annual precipitation were primary determinants structure eukaryotic microbes animals, respectively. further found contrasting latitudinal diversity patterns strengths for animals. results point to potential link between body size eukaryotes relative effect ecological environmental factors driving their biogeographic patterns.

Язык: Английский

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What drives study‐dependent differences in distance–decay relationships of microbial communities?

Global Ecology and Biogeography, Год журнала: 2021, Номер 30(4), С. 811 - 825

Опубликована: Фев. 8, 2021

Abstract Aim Ecological communities that exist closer together in space are generally more compositionally similar than those far apart, as defined by the distance–decay of similarity relationship. However, recent research has revealed substantial variability relationships microbial between studies different taxonomic groups, ecosystems and spatial scales using molecular methodologies (e.g., high‐throughput sequencing versus fingerprinting). Here, we test how these factors influence strength relationships, order to draw generalizations about β‐diversity with space. Location Global. Time period Studies published 2005 2019 (inclusive). Major taxa studied Bacteria, Archaea Eukarya. Methods We conducted a meta‐analysis Mantel correlation coefficient measure relationships. Our final dataset consisted 452 data points, varying environmental/ecological context or methodological approaches, used linear models effects each variable. Results Both ecological had significant impacts on Specifically, varied environments habitats, soils showing significantly weaker other whereas increasing extents no effect. Methodological factors, such depth, were positively related choice dissimilarity metric was also important, phylogenetic metrics giving binary abundance‐based indices. Main conclusions conclude widely biogeographical patterns, relationship, vary but primarily distorted choices. Consequently, suggest linking approaches appropriately study, can progress towards generalizable ecology.

Язык: Английский

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Stochastic community assembly decreases soil fungal richness in arid ecosystems

Molecular Ecology, Год журнала: 2021, Номер 30(17), С. 4338 - 4348

Опубликована: Июнь 29, 2021

Uncovering the linkages between community assembly and species diversity is a fundamental issue in microbial ecology. In this study, large-scale (transect intervals of 1257.6 km) cross-biome soil survey was conducted, which ranged over agricultural fields, forests, wetlands, grasslands desert, arid regions northwest China. The aim to investigate biogeographic distribution, co-occurrence fungi. fungal communities soils exhibited steeper distance-decay slope wider niche breadths, were more strongly affected by stochastic processes, than fungi other natural habitats. A strong relationship revealed richness ecosystems, with influence processes decreasing increasing richness. Moreover, aridity most important environmental factor influencing richness, β-diversity patterns. Specifically, predicted increase conditions will probably reduce network complexity. These findings represent considerable advance linking mechanisms underlying patterns ecosystems. results can thus be used forecast diversities pattern under climate land-use change scenarios.

Язык: Английский

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Comparative analysis of diversity and environmental niches of soil bacterial, archaeal, fungal and protist communities reveal niche divergences along environmental gradients in the Alps

Soil Biology and Biochemistry, Год журнала: 2022, Номер 169, С. 108674 - 108674

Опубликована: Апрель 18, 2022

Although widely used in ecology, comparative analyses of diversity and niche properties are still lacking for microorganisms, especially focusing on variations. Quantifying the niches microbial taxa is necessary to then forecast how communities they compose might respond environmental changes. In this study, we first identified important topoclimatic, edaphic, spatial biotic drivers alpha beta bacterial, archaeal, fungal protist communities. Then, calculated breadth position each taxon along gradients determine these vary within among taxonomic groups. We found that edaphic were most both, community composition, all Protists bacteria presented largest breadths average, followed by archaea, with fungi displaying smallest. Niche generally decreased towards extremes, gradients, suggesting increased specialization highly selective environments. Overall, showed microorganisms have well defined niches, as do macro-organisms, likely driving part observed patterns Assessing variation more ecology should open new perspectives, tackle global change effects microbes.

Язык: Английский

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Landscape context determines soil fungal diversity in a fragmented habitat

CATENA, Год журнала: 2022, Номер 213, С. 106163 - 106163

Опубликована: Март 2, 2022

Язык: Английский

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