Impact of global change on the plant microbiome

Hacquard, Stéphane; Wang, Ertao; Slater, Holly; Martin, Francis

doi:10.1111/nph.18187

Cited by 23 publications

(13 citation statements)

References 20 publications

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“…Disentangling which environmental factors contribute the most to variation in selection in plant populations and in the composition of microbial communities across large spatial scales is critical for predictions of how global change will impact plant fitness, microbiome assembly, as well as the interaction between plants and their associated microbial communities (Ramirez et al ., 2019; Thiergart et al ., 2020; Petipas et al ., 2021; Hacquard et al ., 2022). The present results suggest that differences in seasonal changes in climatic conditions (temperature, day length and PAR) between the two A. thaliana source populations are sufficient to explain the fitness advantage of the local over the nonlocal genotypes observed in reciprocal transplants between the two populations (Ågren & Schemske, 2012; Postma & Ågren, 2016; Thiergart et al ., 2020; Ellis et al ., 2021), whereas differences in below‐ground soil physicochemical composition and microbiome only weakly affect the relative fitness of the two genotypes.…”

Section: Discussionmentioning

confidence: 99%

Climate drives rhizosphere microbiome variation and divergent selection between geographically distant Arabidopsis populations

et al. 2022

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Disentangling the contribution of climatic and edaphic factors to microbiome variation and local adaptation in plants requires an experimental approach to uncouple their effects and test for causality.We used microbial inocula, soil matrices and plant genotypes derived from two natural Arabidopsis thaliana populations in northern and southern Europe in an experiment conducted in climatic chambers mimicking seasonal changes in temperature, day length and light intensity of the home sites of the two genotypes.The southern A. thaliana genotype outperformed the northern genotype in the southern climate chamber, whereas the opposite was true in the northern climate chamber. Recipient soil matrix, but not microbial composition, affected plant fitness, and effects did not differ between genotypes. Differences between chambers significantly affected rhizosphere microbiome assembly, although these effects were small in comparison with the shifts induced by physicochemical differences between soil matrices.The results suggest that differences in seasonal changes in temperature, day length and light intensity between northern and southern Europe have strongly influenced adaptive differentiation between the two A. thaliana populations, whereas effects of differences in soil factors have been weak. By contrast, below-ground differences in soil characteristics were more important than differences in climate for rhizosphere microbiome differentiation.

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Section: Discussionmentioning

confidence: 99%

Climate drives rhizosphere microbiome variation and divergent selection between geographically distant Arabidopsis populations

et al. 2022

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“…The tree with its associated microbiome-the collection of all microorganisms in a location-faces altered environmental conditions as a result of forest replacement and a rapidly changing climate. Characterizing the mechanisms shaping the tree microbiome is therefore required for a better understanding of tree fitness and adaptation to changing environments, and the ecology of forest ecosystems (Hacquard, 2016;Mishra et al, 2020;Hacquard et al, 2022). As tree roots are associated to hundreds of ECM fungi, there is a need to characterize the communities of bacteria and fungi inhabiting ECM roots (Garbaye, 1994;Perotto and Bonfante, 1997;Bending et al, 2002;Frey Klett et al, 2007;Marupakula et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

The bacterial and fungal microbiomes of ectomycorrhizal roots from stone oaks and Yunnan pines in the subtropical forests of the Ailao Mountains of Yunnan

et al. 2022

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Ectomycorrhizal (ECM) symbioses play an important role in tree biology and forest ecology. However, little is known on the composition of bacterial and fungal communities associated to ECM roots. In the present study, we surveyed the bacterial and fungal microbiome of ECM roots from stone oaks (Lithocarpus spp.) and Yunnan pines (Pinus yunnanensis) in the subtropical forests of the Ailao Mountains (Yunnan, China). The bacterial community was dominated by species pertaining to Rhizobiales and Acidobacteriales, whereas the fungal community was mainly composed of species belonging to the Russulales and Thelephorales. While the bacterial microbiome hosted by ECM roots from stone oaks and Yunnan pines was very similar, the mycobiome of these host trees was strikingly distinct. The microbial networks for bacterial and fungal communities showed a higher complexity in Lithocarpus ECM roots compared to Pinus ECM roots, but their modularity was higher in Pinus ECM roots. Seasonality also significantly influenced the fungal diversity and their co-occurrence network complexity. Our findings thus suggest that the community structure of fungi establishing and colonizing ECM roots can be influenced by the local soil/host tree environment and seasonality. These results expand our knowledge of the ECM root microbiome and its diversity in subtropical forest ecosystems.

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“…This includes addressing issues of physiological responses of plants to their environment, how these are linked to changes at the genetic level, and how these changes at the whole plant level might translate into ecological impacts in natural or agroecosystems. Additionally, links between belowground factors (soil composition, rhizosphere interactions) and the plant microbiome (Hacquard et al, 2022) will be key to increasing plant health, defence and productivity under future climate conditions.…”

Section: Addressing Gaps In Our Knowledgementioning

confidence: 99%

Crosstalk and trade‐offs: Plant responses to climate change‐associated abiotic and biotic stresses

Leisner

Potnis

Sanz‐Sáez

2023

Plant Cell & Environment

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As sessile organisms, plants are constantly challenged by a dynamic growing environment. This includes fluctuations in temperature, water availability, light levels, and changes in atmospheric constituents such as carbon dioxide (CO2) and ozone (O3). In concert with changes in abiotic conditions, plants experience changes in biotic stress pressures, including plant pathogens and herbivores. Human‐induced increases in atmospheric CO2 levels have led to alterations in plant growth environments that impact their productivity and nutritional quality. Additionally, it is predicted that climate change will alter the prevalence and virulence of plant pathogens, further challenging plant growth. A knowledge gap exists in the complex interplay between plant responses to biotic and abiotic stress conditions. Closing this gap is crucial for developing climate resilient crops in the future. Here, we briefly review the physiological responses of plants to elevated CO2, temperature, tropospheric O3, and drought conditions, as well as the interaction of these abiotic stress factors with plant pathogen pressure. Additionally, we describe the crosstalk and trade‐offs involved in plant responses to both abiotic and biotic stress, and outline targets for future work to develop a more sustainable future food supply considering future climate change.

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Impact of global change on the plant microbiome

Cited by 23 publications

References 20 publications

Climate drives rhizosphere microbiome variation and divergent selection between geographically distant Arabidopsis populations

Climate drives rhizosphere microbiome variation and divergent selection between geographically distant Arabidopsis populations

The bacterial and fungal microbiomes of ectomycorrhizal roots from stone oaks and Yunnan pines in the subtropical forests of the Ailao Mountains of Yunnan

Crosstalk and trade‐offs: Plant responses to climate change‐associated abiotic and biotic stresses

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