Microbial Hub Taxa Link Host and Abiotic Factors to Plant Microbiome Variation

PLoS Biology, Год журнала: 2016, Номер 14(1), С. e1002352 - e1002352

Опубликована: Янв. 20, 2016

Plant-associated microorganisms have been shown to critically affect host physiology and performance, suggesting that evolution ecology of plants animals can only be understood in a holobiont (host its associated organisms) context. Host-associated microbial community structures are affected by abiotic factors, increased attention is given the role microbiome interactions such as pathogen inhibition. However, little known about how these factors act on community, especially what microbe–microbe interaction dynamics play. We begun address this knowledge gap for phyllosphere microbiomes simultaneously studying three major groups Arabidopsis thaliana symbionts (bacteria, fungi oomycetes) using systems biology approach. evaluated multiple potential control: we sampled various wild A. populations at different times, performed field plantings with genotypes, implemented successive colonization experiments under lab conditions where genotype, was manipulated. Our results indicate both genotype interact plant all microbes. Considering interactions, however, uncovered network interkingdom significant contributions structure. As other scale-free networks, small number taxa, which call "hubs," strongly interconnected severe effect communities. By documenting uncover an important mechanism explaining genotypic signatures control In short, they directly "hub" microbes, which, via transmit effects community. analyzed two microbes (the obligate biotrophic oomycete Albugo basidiomycete yeast fungus Dioszegia) more closely. had strong epiphytic endophytic bacterial colonization. Specifically, alpha diversity decreased beta stabilized presence infection, whereas otherwise varied between plants. Dioszegia, hand, provided evidence direct hub bacteria. The identification "hubs" their importance structuring has crucial implications plant–pathogen research opens new entry points ecosystem management future targeted biocontrol. revelation cascade through communities understand structure perturbations parallel fields including human bioprocesses. particular, parallels "keystone" pathogens open avenues interdisciplinary promise better our understanding functions host-associated microbiomes.

Язык: Английский

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Multiorganismal Insects: Diversity and Function of Resident Microorganisms

Annual Review of Entomology, Год журнала: 2014, Номер 60(1), С. 17 - 34

Опубликована: Окт. 23, 2014

All insects are colonized by microorganisms on the insect exoskeleton, in gut and hemocoel, within cells. The microbiota is generally different from external environment, including ingested food. Specifically, certain microbial taxa favored conditions resources habitat, their tolerance of immunity, specific mechanisms for transmission. resident can promote fitness contributing to nutrition, especially providing essential amino acids, B vitamins, and, fungal partners, sterols. Some protect hosts against pathogens, parasitoids, other parasites synthesizing toxins or modifying immune system. Priorities future research include elucidation contributions detoxification, plant allelochemicals phytophagous insects, resistance pathogens; as well role among-insect communication; potential value manipulation control pests.

Язык: Английский

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Linking Plant Secondary Metabolites and Plant Microbiomes: A Review

Frontiers in Plant Science, Год журнала: 2021, Номер 12

Опубликована: Март 2, 2021

Plant secondary metabolites (PSMs) play many roles including defense against pathogens, pests, and herbivores; response to environmental stresses, mediating organismal interactions. Similarly, plant microbiomes participate in of the above-mentioned processes directly or indirectly by regulating metabolism. Studies have shown that plants can influence their microbiome secreting various and, turn, may also impact metabolome host plant. However, not much is known about communications between interacting partners phenotypic changes. In this article, we review patterns potential underlying mechanisms interactions PSMs microbiomes. We describe recent developments analytical approaches methods field. The applications these new increased our understanding relationships Though current studies primarily focused on model organisms, results obtained so far should help future agriculturally important facilitate development manipulate PSMs–microbiome with predictive outcomes for sustainable crop productions.

Язык: Английский

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Structural variability and niche differentiation in the rhizosphere and endosphere bacterial microbiome of field-grown poplar trees

Microbiome, Год журнала: 2017, Номер 5(1)

Опубликована: Фев. 23, 2017

The plant microbiome represents one of the key determinants health and productivity by providing a plethora functional capacities such as access to low-abundance nutrients, suppression phytopathogens, resistance biotic and/or abiotic stressors. However, robust understanding structural composition bacterial present in different microenvironments especially relationship between below-ground above-ground communities has remained elusive. In this work, we addressed hypotheses regarding niche differentiation stability within ecological niches. We sampled rhizosphere soil, root, stem, leaf endosphere field-grown poplar trees (Populus tremula × Populus alba) applied 16S rRNA amplicon pyrosequencing unravel associated with habitats. found that variability microbiomes (P. P. is much lower than microbiomes. Furthermore, our data not only confirm reports at soil–root interface but also clearly show additional fine-tuning adaptation stem compartment. Each compartment an unique for communities. Finally, identified core niches Populus. Understanding complex host–microbe interactions could provide basis exploitation eukaryote–prokaryote associations phytoremediation applications, sustainable crop production (bio-energy efficiency), secondary metabolites.

Язык: Английский

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Gut Microbiotas and Host Evolution: Scaling Up Symbiosis

Trends in Ecology & Evolution, Год журнала: 2016, Номер 31(7), С. 539 - 549

Опубликована: Март 31, 2016

Язык: Английский

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Mechanisms and evolution of plant resistance to aphids

Nature Plants, Год журнала: 2016, Номер 2(1)

Опубликована: Янв. 6, 2016

Язык: Английский

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Gut symbiont enhances insecticide resistance in a significant pest, the oriental fruit fly Bactrocera dorsalis (Hendel)

Microbiome, Год журнала: 2017, Номер 5(1)

Опубликована: Янв. 31, 2017

Symbiotic bacteria affect insect physiology and ecology. They may also mediate insecticide resistance within their hosts thereby impact pest vector control practices. Here, we document a novel mechanism of in which gut symbiont the tephritid fruit fly Bactrocera dorsalis enhances to organophosphate trichlorphon.We demonstrated that Citrobacter sp. (CF-BD) plays key role degradation trichlorphon. Based on comparative genomics analysis with other species, phosphatase hydrolase genes were identified CF-BD. These CF-BD had higher expression when trichlorphon was present. inoculated isolated obtained resistance, while antibiotic-treated flies less resistant confirming resistance.Our findings suggest symbiont-mediated can readily develop B. represent more widely relevant than previously recognized.

Язык: Английский

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Xenobiotic detoxification pathways in honey bees

Current Opinion in Insect Science, Год журнала: 2015, Номер 10, С. 51 - 58

Опубликована: Май 2, 2015

Язык: Английский

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Symbiont Acquisition and Replacement as a Source of Ecological Innovation

Trends in Microbiology, Год журнала: 2017, Номер 25(5), С. 375 - 390

Опубликована: Март 21, 2017

Язык: Английский

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Bacterial Symbionts in Lepidoptera: Their Diversity, Transmission, and Impact on the Host

Frontiers in Microbiology, Год журнала: 2018, Номер 9

Опубликована: Март 27, 2018

The insect´s microbiota is well acknowledged as a "hidden" player influencing essential insect traits. gut microbiome of butterflies and moths (Lepidoptera) has been shown to be highly variable between within species, resulting in controversy on the functional relevance microbes this order. Here, we aim (i) review current knowledge composition microbial communities across Lepidoptera, (ii) elucidate drivers variability lepidopteran microbiome, provide an overview (iii) routes transfer (iv) putative functions Lepidoptera. To find out whether Lepidopterans possess core compared studies from 30 species. Gut bacteria Enterobacteriaceae, Bacillaceae Pseudomonadaceae families were most widespread with Pseudomonas, Bacillus, Staphylococcus, Enterobacter Enterococcus being common genera. Several indicate that habitat, food plant age host can greatly impact which contributes digestion, detoxification, or defense against natural enemies. We mainly focus but also include some examples intracellular endosymbionts. These symbionts are present broad range taxa, known exert different effects their host, mostly including nutrition reproductive manipulation. Only two genera (Wolbachia Spiroplasma) have reported colonize tissues affecting host's reproduction. explore transmission both symbionts, found these may horizontally transmitted through plant, vertically via egg stage. More detailed about plasticity Lepidoptera novel leads for control pest

Язык: Английский

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