Successful seedling establishment of arbuscular mycorrhizal-compared to ectomycorrhizal-associated hardwoods in arbuscular cedar plantations

Seiwa, Kenji; Negishi, Yuki; Eto, Yukino; Hishita, Masahiro; Masaka, Kazuhiko; Fukasawa, Yu; Matsukura, Kimiyo; Suzuki, Masanori

doi:10.1016/j.foreco.2020.118155

Cited by 23 publications

(16 citation statements)

References 51 publications

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“…Conversely, we found a positive relationship between spruce shoot biomass and EM fungal colonization. This is consistent with EM plants having greater mycorrhizal dependence and aligns with evidence that EM fungi can support tree recruitment (Seiwa et al, 2020) and persistence (McGuire, 2007) through positive soil biological legacies.…”

Section: Discussionsupporting

confidence: 87%

“…These findings align with research showing established EM trees to have negative effects on AM seedling recruitment (Booth, 2004;Dickie et al, 2002;Guichon, 2015;Weber et al, 2005). Similarly, Seiwa et al (2020) found hardwood recruitment following thinning may be limited to seedlings forming the same type of mycorrhiza. Thus, mycorrhizal fungal compatibility is likely an important factor in tree recruitment in forest ecosystems dominated by mycorrhizal-dependent tree species.…”

Section: Mycorrhizal Fungi Generate Legaciessupporting

confidence: 86%

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Soil microbial legacies influence plant survival and growth in mine reclamation

McMahen

Guichon

Anglin

et al. 2022

Ecology and Evolution

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Plants alter soil biological communities, generating ecosystem legacies that affect the performance of successive plants, influencing plant community assembly and successional trajectories. Yet, our understanding of how microbe‐mediated soil legacies influence plant establishment is limited for primary successional systems and forest ecosystems, particularly for ectomycorrhizal plants. In a two‐phase greenhouse experiment using primary successional mine reclamation materials with or without forest soil additions, we conditioned soil with an early successional shrub with low mycorrhizal dependence (willow, Salix scouleriana) and a later‐successional ectomycorrhizal conifer (spruce, Picea engelmannii × glauca). The same plant species and later‐successional plants (spruce and/or redcedar, Thuja plicata, a mid‐ to late‐successional arbuscular mycorrhizal conifer) were grown as legacy‐phase seedlings in conditioned soils and unconditioned control soils. Legacy effects were evaluated based on seedling survival and biomass, and the abundance and diversity of root fungal symbionts and pathogens. We found negative intraspecific (same‐species) soil legacies for willow associated with pathogen accumulation, but neutral to positive intraspecific legacies in spruce associated with increased mycorrhizal fungal colonization and diversity. Our findings support research showing that soil legacy effects vary with plant nutrient acquisition strategy, with plants with low mycorrhizal dependence experiencing negative feedbacks and ectomycorrhizal plants experiencing positive feedbacks. Soil legacy effects of willow on next‐stage successional species (spruce and redcedar) were negative, potentially due to allelopathy, while ectomycorrhizal spruce had neutral to negative legacy effects on arbuscular mycorrhizal redcedar, likely due to the trees not associating with compatible mycorrhizae. Thus, positive biological legacies may be limited to scenarios where mycorrhizal‐dependent plants grow in soil containing legacies of compatible mycorrhizae. We found that soil legacies influenced plant performance in mine reclamation materials with and without forest soil additions, indicating that initial restoration actions may potentially exert long‐term effects on plant community composition, even in primary successional soils with low microbial activity.

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Section: Discussionsupporting

confidence: 87%

Section: Mycorrhizal Fungi Generate Legaciessupporting

confidence: 86%

Soil microbial legacies influence plant survival and growth in mine reclamation

McMahen

Guichon

Anglin

et al. 2022

Ecology and Evolution

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“…The small difference among thinning intensities in the colonisation rate of AM fungi for the hardwood species C. controversa may be attributed to the land use history of the experimental site. Before planting C. japonica , the area was used as a hay meadow; because most grasses and herbaceous plants were associated with AM fungi (Öpik et al ., 2008), the soil at the experimental site has probably long been occupied by AM fungi (Seiwa et al ., 2020). In addition, the stable isotope ratio of NO 3 ‐N, δ15N measured in soil pore water during the growing season indicated that no nitrogen isotope effect occurred due to denitrification in any treatment (S. Hayashi, unpublished data), suggesting that denitrification was not responsible for the low NO 3 ‐N concentrations in the Intensive plot, although the isotope measurements were conducted in 2011.…”

Section: Discussionmentioning

confidence: 99%

Relationship between the vertical distribution of fine roots and residual soil nitrogen along a gradient of hardwood mixture in a conifer plantation

et al. 2022

Self Cite

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In forest ecosystems, understanding the relationship between the vertical distribution of fine roots and residual soil nitrogen is essential for clarifying the diversity-productivity-water purification relationship.Vertical distributions of fine-root biomass (FRB) and concentrations of nitrate-nitrogen (NO 3 -N) in soil water were investigated in a conifer plantation with three thinning intensities (Control, Weak and Intensive), in which hardwood abundance and diversity were low, moderate and high, respectively.Intensive thinning led to the lowest NO 3 -N concentration in soil water at all depths (0-100 cm) and highest FRB at shallow depths (0-50 cm). The NO 3 -N concentration at a given depth was negatively correlated with total FRB from the surface to the depth at which NO 3 -N concentration was measured, especially at shallow depths, indicating that more abundant fine roots led to lower levels of downward NO 3 -N leaching. FRB contributed positively to nitrogen content of hardwood leaves.These findings demonstrate that a hardwood mixture in conifer plantations resulted in sufficient uptake of NO 3 -N from soil by well developed fine-root systems, and translocation to canopy foliage. This study suggests that productivity and water purification can be achieved through a hardwood mixture in conifer plantations.

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“…We used nine plant species: five AM-associated species (Magnolia obovata, Cerasus jamasakura, Viburnum dilatatum, Viburnum furcatum, and Aesculus turbinata) and four ECM-associated species (Pinus densiflora, Betula platyphylla, Quercus crispula, and Quercus serrata) [12][13][14][15][16]. The natural population densities of ECM-associated species are higher than those of AM-associated species (Table S1) [17].…”

Section: Experimental Speciesmentioning

confidence: 99%

Evolutionary relations between mycorrhizal symbiosis and plant–plant communication in trees

Yamawo

Hagiwara

Yoshida

et al. 2022

Preprint

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Ecological factors that drive the evolution of plant-plant communication via volatile organic compounds (VOCs) have not been elucidated. Here, we examined the relationship between type of mycorrhizal symbiosis (arbuscular mycorrhiza, AM; ectomycorrhizal mycorrhiza, ECM) and plant-plant communication within tree species. We hypothesized that ECM promotes plant-plant communication among conspecific individuals in trees, because it promotes their cooccurrence through positive plant-soil feedback. We tested communication using saplings of nine tree species with either AM or ECM, either exposed for 10 days to volatiles from an injured conspecific or not exposed. We evaluated the number of insect-damaged leaves and the area of leaf damage after 1 and 2 months in the field. Most exposed ECM-associated trees had less leaf damage than controls. However, AM-associated trees did not differ in leaf damage between treatments. We combined our results with those of previous studies and analysed the evolutionary relation between mycorrhizal type and the presence or absence of plant-plant communication within tree species. ECM symbiosis is associated with the evolution of plant-plant communication within species. These results suggest that the evolution of types of mycorrhizal symbiosis associates with the evolution of plant-plant communications within tree species.

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Successful seedling establishment of arbuscular mycorrhizal-compared to ectomycorrhizal-associated hardwoods in arbuscular cedar plantations

Cited by 23 publications

References 51 publications

Soil microbial legacies influence plant survival and growth in mine reclamation

Soil microbial legacies influence plant survival and growth in mine reclamation

Relationship between the vertical distribution of fine roots and residual soil nitrogen along a gradient of hardwood mixture in a conifer plantation

Evolutionary relations between mycorrhizal symbiosis and plant–plant communication in trees

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