Plant species identities and fertilization influence on arbuscular mycorrhizal fungal colonisation and soil bacterial activities

Legay, Nicolas; Grassein, Fabrice; Binet, M.N.; Arnoldi, Cindy; Personeni, Emmanuelle; Périgon, Sophie; Poly, Franck; Pommier, Thomas; Puissant, Jérémy; Clément, Jean‐Christophe; Lavorel, Sandra; Mouhamadou, Bello

doi:10.1016/j.apsoil.2015.10.006

Cited by 28 publications

(26 citation statements)

References 52 publications

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“…Indeed, the two plant species differed in their nutrient use strategies: D. glomerata increased soil nitrate concentrations (Fig. S2), which was probably a result of a positive influence of this species on the rates of nitrification (Bremer et al ., ; Legay et al ., ), whereas L. hispidus is known to have a high demand for nitrate, as shown by Onipchenko et al . ().…”

Section: Discussionmentioning

confidence: 89%

Legacy effects of drought on plant–soil feedbacks and plant–plant interactions

et al. 2017

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Interactions between aboveground and belowground biota have the potential to modify ecosystem responses to climate change, yet little is known about how drought influences plant-soil feedbacks with respect to microbial mediation of plant community dynamics. We tested the hypothesis that drought modifies plant-soil feedback with consequences for plant competition. We measured net pairwise plant-soil feedbacks for two grassland plant species grown in monoculture and competition in soils that had or had not been subjected to a previous drought; these were then exposed to a subsequent drought. To investigate the mechanisms involved, we assessed treatment responses of soil microbial communities and nutrient availability. We found that previous drought had a legacy effect on bacterial and fungal community composition that decreased plant growth in conspecific soils and had knock-on effects for plant competitive interactions. Moreover, plant and microbial responses to subsequent drought were dependent on a legacy effect of the previous drought on plant-soil interactions. We show that drought has lasting effects on belowground communities with consequences for plant-soil feedbacks and plant-plant interactions. This suggests that drought, which is predicted to increase in frequency with climate change, may change soil functioning and plant community composition via the modification of plant-soil feedbacks.

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Section: Discussionmentioning

confidence: 89%

Legacy effects of drought on plant–soil feedbacks and plant–plant interactions

et al. 2017

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“…This may indicate that microbe-plant interactions structure, to a certain extent, the local heterogeneity of those communities. Vandenkoornhuyse et al (2016) go as far as describing plants and their attached microbial community as 'holobionts' because of the mutualistic links between plants and soil microbes that built on, for instance, local soil modifications or root exudate production (Broeckling et al 2008, Lange et al 2014, Legay et al 2016). Vandenkoornhuyse et al (2016) go as far as describing plants and their attached microbial community as 'holobionts' because of the mutualistic links between plants and soil microbes that built on, for instance, local soil modifications or root exudate production (Broeckling et al 2008, Lange et al 2014, Legay et al 2016).…”

Section: Predominant Drivers Of Microbial Assemblymentioning

confidence: 99%

Environmental and biotic drivers of soil microbial β‐diversity across spatial and phylogenetic scales

et al. 2019

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Soil microbial communities play a key role in ecosystem functioning but still little is known about the processes that determine their turnover (β-diversity) along ecological gradients. Here, we characterize soil microbial β-diversity at two spatial scales and at multiple phylogenetic grains to ask how archaeal, bacterial and fungal communities are shaped by abiotic processes and biotic interactions with plants. We characterized microbial and plant communities using DNA metabarcoding of soil samples distributed across and within eighteen plots along an elevation gradient in the French Alps. The recovered taxa were placed onto phylogenies to estimate microbial and plant β-diversity at different phylogenetic grains (i.e. resolution). We then modeled microbial β-diversities with respect to plant β-diversities and environmental dissimilarities across plots (landscape scale) and with respect to plant β-diversities and spatial distances within plots (plot scale). At the landscape scale, fungal and archaeal β-diversities were mostly related to plant β-diversity, while bacterial β-diversities were mostly related to environmental dissimilarities. At the plot scale, we detected a modest covariation of bacterial and fungal β-diversities with plant β-diversity; as well as a distance-decay relationship that suggested the influence of ecological drift on microbial communities. In addition, the covariation between fungal and plant β-diversity at the plot scale was highest at fine or intermediate phylogenetic grains hinting that biotic interactions between those clades depends on early-evolved traits.Altogether, we show how multiple ecological processes determine soil microbial community assembly at different spatial scales and how the strength of these processes change among microbial clades. In addition, we emphasized the imprint of microbial and plant evolutionary history on today's microbial community structure.

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“…Early colonization of plant roots by AM fungi is crucial for the success of an afforestation plan, because AM symbiosis plays an important role in improving plant establishment and growth (Alguacil, Torres, Torrecillas, & Roldán, 2011;Smith & Read, 2008). Conversely, the host plants and soil conditions, such as water content and fertility, can influence the growth and functions of AM fungi (Bencherif, Boutekrabt, Dalpé, & Sahraoui, 2016;Chaiyasen, Chaiya, Douds, & Lumyong, 2016;Legay et al, 2016;Lekberg & Waller, 2016). Afforestation changes the vegetation cover, causing an impact on soil microclimatic conditions and physicochemical properties (Antoninka, Reich, & Johnson, 2011;Su & Guo, 2007;Yang et al, 2013;Zheng et al, 2014), which means there is considerable potential for afforestation to affect the growth of resident AM fungi and their beneficial effects on host plants.…”

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confidence: 99%

Why does oriental arborvitae grow better when mixed with black locust: Insight on nutrient cycling?

Chen

Tang

Zhang

et al. 2017

Ecology and Evolution

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To identify why tree growth differs by afforestation type is a matter of prime concern in forestry. A study was conducted to determine why oriental arborvitae (Platycladus orientalis) grows better in the presence of black locust (Robinia pseudoacacia) than in monoculture. Different types of stands (i.e., monocultures and mixture of black locust and oriental arborvitae, and native grassland as a control) were selected in the Loess Plateau, China. The height and diameter at breast height of each tree species were measured, and soil, shoot, and root samples were sampled. The arbuscular mycorrhizal (AM) attributes, shoot and root nutrient status, height and diameter of black locust were not influenced by the presence of oriental arborvitae. For oriental arborvitae, however, growing in mixture increased height and diameter and reduced shoot Mn, Ca, and Mg contents, AM fungal spore density, and colonization rate. Major changes in soil properties also occurred, primarily in soil water, NO 3‐N, and available K levels and in soil enzyme activity. The increase in soil water, N, and K availability in the presence of black locust stimulated oriental arborvitae growth, and black locust in the mixed stand seems to suppress the development of AM symbiosis in oriental arborvitae roots, especially the production of AM fungal spores and vesicles, through improving soil water and N levels, thus freeing up carbon to fuel plant growth. Overall, the presence of black locust favored oriental arborvitae growth directly by improving soil water and fertility and indirectly by repressing AM symbiosis in oriental arborvitae roots.

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Plant species identities and fertilization influence on arbuscular mycorrhizal fungal colonisation and soil bacterial activities

Cited by 28 publications

References 52 publications

Legacy effects of drought on plant–soil feedbacks and plant–plant interactions

Legacy effects of drought on plant–soil feedbacks and plant–plant interactions

Environmental and biotic drivers of soil microbial β‐diversity across spatial and phylogenetic scales

Why does oriental arborvitae grow better when mixed with black locust: Insight on nutrient cycling?

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