Facilitation promotes invasions in plant‐associated microbial communities

Mei, Li; Wei, Zhong; Wang, Jianbo; Jousset, Alexandre; Friman, Ville‐Petri; Xu, Yangchun; Shen, Qirong; Pommier, Thomas

doi:10.1111/ele.13177

Cited by 116 publications

(118 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Weak-intransitive competition within communities made up of strong competitors exhibit negative diversity-function relationships [24]. Conversely, co-existing species, following niche partitioning based on distinct resources or facilitation, could positively interact, which can increase community functional performance [28,41,44]. Such cases support our ndings that the soil food web complexity not only promotes multiple functions but also enhances the link between soil biodiversity and ecosystem functions.…”

Section: Discussionsupporting

confidence: 81%

“…Complex processes are driven by trophic interactions among soil organisms within food webs [1,15]. For example, large soil invertebrates comminute large amounts of animal and plant litter to generate resources for fungi and bacteria [1]; positive interactions, induced by niche partitioning or facilitation, could promote microbial community functioning [28,41]; microbial interkingdom associations could enhance ecosystem functioning [15] and promote plant health in the model plant Arabidopsis [42]. We also observed multiple potential associations among soil microbial biodiversity that could positively in uence ecosystem multifunctionality.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Soil Food Web Complexity Enhances the Link Between Soil Biodiversity and Ecosystem Multifunctionality in Agricultural Systems

Jiao

2020

Preprint

View full text Add to dashboard Cite

Background: Belowground biodiversity supports multiple ecosystem functions and services that humans rely on. However, there is a dearth of studies conducted on a large spatial scale on the topic in intensely managed agricultural ecosystems. Existing studies have overlooked the fact that the functional diversity in other trophic groups within a food web could influence function of an individual in another trophic group. Here, we report significant and positive relationships between soil biodiversity (archaea, bacteria, fungi, protists, and invertebrates) and multiple ecosystem functions (nutrient provisioning, element cycling, and reduced pathogenicity potential) in 228 agricultural fields. Results: The relationships were influenced by (I) the types of organisms with significant relationships in archaea, bacteria, and fungi and not in protists and invertebrates, and (II) the connectedness of dominant phylotypes across soil food webs, which generate different ecological clusters within soil networks to maintain multiple functions. In addition, we highlight the role of soil food web complexity, reflected by ecological networks comprising diverse organisms, which promote the multiple functions and enhance the link between soil biodiversity and ecosystem functions. Conclusions: Overall, our results represent a significant advance in forecasting the impacts of belowground biodiversity within food webs on ecosystem functions in agricultural systems, and suggest that soil biodiversity, particularly soil food web complexity, should not be overlooked, but rather considered a key factor and integrated into policy and management activities aimed at enhancing and maintaining ecosystem productivity, stability, and sustainability under land-use intensification.

show abstract

Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Soil Food Web Complexity Enhances the Link Between Soil Biodiversity and Ecosystem Multifunctionality in Agricultural Systems

Jiao

2020

Preprint

View full text Add to dashboard Cite

show abstract

“…60,61 While several studies have established a positive correlation between community diversity and invasion resistance, it is less clear how interactions between members within resident communities are involved in this process. 62 From the perspective of resource utilization and competition, plants and soil microbes can have direct co-evolutionary relationships, such as those between plants and pathogens. 63,64 It is becoming more evident that pathogenic and mutualistic-symbiotic organisms influence plant microbial community diversity and succession.…”

Section: Discussionmentioning

confidence: 99%

Network analysis infers the wilt pathogen invasion associated with non-detrimental bacteria

Tan

et al. 2020

npj Biofilms Microbiomes

Self Cite

View full text Add to dashboard Cite

The microbiota colonizing the root endophytic compartment and surrounding rhizosphere soils contribute to plant growth and health. However, the key members of plant soil and endophytic microbial communities involved in inhibiting or assisting pathogen invasion remain elusive. By utilizing 16S high-throughput sequencing and a molecular ecological network (MEN) approach, we systematically studied the interactions within bacterial communities in plant endophytic compartments (stem and root) and the surrounding soil (bulk and rhizosphere) during bacterial wilt invasion. The endophytic communities were found to be strongly influenced by pathogen invasion according to analysis of microbial diversity and community structure and composition. Endophytic communities of the infected plants were primarily derived from soil communities, as assessed by the SourceTracker program, but with rare migration from soil communities to endophytic communities observed in healthy plants. Soil and endophytic microbiomes from infected plants showed modular topology and greater complexity in network analysis, and a higher number of interactions than those in healthy plants. Furthermore, interactions among microbial members revealed that pathogenic Ralstonia members were positively correlated with several bacterial genera, including Delftia, Stenotrophomonas, Bacillus, Clostridium XlVa, Fontibacillus, Acidovorax, Herminiimonas, and three unclassified bacterial genera, in infected plant roots. Our findings indicated that the pathogen invasion in the rhizosphere and endophytic compartments may be highly associated with bacteria that are normally not detrimental, and sometimes even beneficial, to plants.

show abstract

“…This has been shown in the pathobiome associated with the causal agent of oak powdery mildew (the ascomycete fungus Erysiphe alphitoides) in oak (Quercus robur) phylloplane communities [72]. The type (facilitative-antagonistic) and strength of pairwise bacterial interactions can reliably predict the outcome of invasions in more complex communities, and antagonistic communities can directly inhibit invading microbes through both antagonistic interactions and resource competition [73].…”

Section: Primary Causative Agents In a Pathobiome Contextmentioning

confidence: 98%

The Pathobiome in Animal and Plant Diseases

Bass

Stentiford

Wang

et al. 2019

Trends in Ecology & Evolution

248

189

View full text Add to dashboard Cite

A growing awareness of the diversity and ubiquity of microbes (eukaryotes, prokaryotes, and viruses) associated with larger 'host' organisms has led to the realisation that many diseases thought to be caused by one primary agent are the result of interactions between multiple taxa and the host. Even where a primary agent can be identified, its effect is often moderated by other symbionts. Therefore, the one pathogen-one disease paradigm is shifting towards the pathobiome concept, integrating the interaction of multiple symbionts, host, and environment in a new understanding of disease aetiology. Taxonomically, pathobiomes are variable across host species, ecology, tissue type, and time. Therefore, a more functionally driven understanding of pathobiotic systems is necessary, based on gene expression, metabolic interactions, and ecological processes. Disease in a Microbe-Dominated World The pathobiome (see Glossary) concept arose from human studies in which disruption of a healthpromoting and ecologically stable gut microbiome resulted in dysbiosis: a microbiome community of low-diversity and modified metabolic state, exposing the gut to invasion by, and proliferation of, pathogenic agents [1,2]. Dysbiotic communities can subvert the immune system and lead to further deleterious effects [3]. This concept is being adopted for research into the pathology of other animals and plants because attempts to explain syndromic conditions by identifying a single pathogenic agent are often incomplete (i.e., the one pathogen-one disease paradigm is often insufficient to explain many diseases [4-6]). Pathobiomes differ from those assemblages representing healthy or 'normal' states. What is 'normal' likely encompasses a range of assemblages that need to be understood before a pathobiome can be reliably distinguished from them. There is a lack of consistency in defining 'pathobiome' in the literature, ranging from a single pathogenic agent interacting with its biotic and abiotic environments (e.g., [5]) to the effects of interacting communities of microbes on host health [7]. Our synthesis (Box 1) is based on the effects of multiple symbionts, across all domains of life, on host health. The term 'microbiome' generally excludes eukaryotes; therefore, in this review, we use the term 'symbiome' to describe the whole assemblage of associated organisms excluding the host, and 'symbiont' for individual taxa within that assemblage. This definition is concordant with an inclusive scheme of symbiosis acknowledged in [9], which ranges from neutralism (neutral effect on both partners) to mutual beneficial effects and mutual antagonistic effects, and all other possible combinations of neutral, beneficial, and antagonistic effects. The duration of the association need not necessarily be long-term, as interactions can be effective on even short timescales; great variability in duration of association is both possible and likely. This inclusive definition is not inconsistent with some previous usages of the term, and is required by the large div...

show abstract

Facilitation promotes invasions in plant‐associated microbial communities

Cited by 116 publications

References 57 publications

Soil Food Web Complexity Enhances the Link Between Soil Biodiversity and Ecosystem Multifunctionality in Agricultural Systems

Soil Food Web Complexity Enhances the Link Between Soil Biodiversity and Ecosystem Multifunctionality in Agricultural Systems

Network analysis infers the wilt pathogen invasion associated with non-detrimental bacteria

The Pathobiome in Animal and Plant Diseases

Contact Info

Product

Resources

About