Breeding toward improved ecological plant–microbiome interactions

Trends in Plant Science, Год журнала: 2022, Номер 27(11), С. 1134 - 1143

Опубликована: Июль 6, 2022

Язык: Английский

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The origin of bi-dimensionality in plant root traits

Trends in Ecology & Evolution, Год журнала: 2023, Номер 39(1), С. 78 - 88

Опубликована: Сен. 28, 2023

Язык: Английский

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Scale‐dependent diversity–biomass relationships can be driven by tree mycorrhizal association and soil fertility

Ecological Monographs, Год журнала: 2023, Номер 93(2)

Опубликована: Фев. 18, 2023

Abstract Diversity–biomass relationships (DBRs) often vary with spatial scale in terrestrial ecosystems, but the mechanisms driving these scale‐dependent patterns remain unclear, especially for highly heterogeneous forest ecosystems. This study explores how mutualistic associations between trees and different mycorrhizal fungi, i.e., arbuscular (AM) vs. ectomycorrhizal (EM) association, modulate DBRs. We hypothesized that soil‐heterogeneous forests a mixture of AM EM tree species, (i) species would respond contrasting ways (i.e., positively negatively, respectively) to increasing soil fertility, (ii) dominance contribute higher diversity greater standing biomass, as result (iii) exert an overall negative effect on DBRs across scales. To empirically test hypotheses, we collected detailed distribution information (e.g., nitrogen, phosphorus, organic matter, pH) from seven temperate subtropical AM–EM mixed megaplots (16–50 ha). Using codispersion null model structural equation modeling, identified among or dominance, diversity, biomass and, thus, 0.01‐ 1‐ha found first evidence supporting three aforementioned hypotheses forests: In most forests, communities changed EM‐dominated AM‐dominated; had positive even after controlling fertility number trees. Together, changes along gradients weakened DBR observed at 0.04‐ha scales nearly all drove 0.25‐ four out forests. Hence, this highlights soil‐related mechanism could partly explain why, many natural biodiversity–ecosystem functioning (BEF) shift scale.

Язык: Английский

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Contrasting coordination of non‐structural carbohydrates with leaf and root economic strategies of alpine coniferous forests

New Phytologist, Год журнала: 2024, Номер 243(2), С. 580 - 590

Опубликована: Март 15, 2024

Summary Non‐structural carbohydrates (NSCs), as the labile fraction and dominant carbon currency, are essential mediators of plant adaptation to environments. However, whether how NSC coordinates with economic strategy frameworks, particularly well‐recognized leaf economics spectrums (LES) root space (RES), remains unclear. We examined relationships between key traits in leaves fine roots across 90 alpine coniferous populations on Tibetan Plateau, China. observed contrasting coordination roots. Leaf total soluble sugar aligned spectrum, conveying a trade‐off growth storage leaves. was independent but highly coordinated foraging, more starch less forage‐efficient, thinner Further, NSC‐trait was, respectively, driven by local temperature precipitation. These findings highlight distinct roles shaping above‐ belowground multidimensional trait space, NSC‐based provides mechanistic understanding plants adapt heterogeneous habitats respond environmental changes.

Язык: Английский

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Revisiting the root economics space—its applications, extensions and nuances advance our understanding of fine-root functioning

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Язык: Английский

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Shifts from an extensive to an intensive root nutrient‐acquisition mode with stand development of three Pinus species

Journal of Ecology, Год журнала: 2024, Номер 112(4), С. 886 - 900

Опубликована: Фев. 20, 2024

Abstract Plant roots employ diverse strategies to acquire soil nutrients, including direct nutrient uptake through absorptive fine and root hairs, scavenging nutrients by forming symbioses with mycorrhizal fungi, mining releasing exudates. However, whether these three are differently coordinated among phylogenetically closely related tree species how this coordination shifts stand development remains largely unclear. To fill knowledge gaps, we measured 13 morphological, architectural, physiological traits tightly nutrient‐acquisition of Pinus ( P. sylvestris var. mongolica , densiflora tabuliformis ) at young (20‐year‐old) mature (50‐year‐old) stages planted in nutrient‐impoverished sandy soils, Northeast China. We found that trees had thinner a higher specific length than across species, indicating become morphologically less efficient ‘do it yourself’ during development. Moreover, stands greater density area index, faster root‐exudation rates, suggesting rely more on expanding volumes scavenge depend exudation ‘mine’ nutrients. The exhibited different the stage; other two ectomycorrhizal colonization rates. Synthesis . Our findings highlight may exhibit suggest shift from an extensive mode depending intensive relying

Язык: Английский

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Decoupling of uptake‐ and transport‐related traits in absorptive roots across coexisting herbaceous species in alpine meadows

Journal of Ecology, Год журнала: 2024, Номер 112(4), С. 770 - 783

Опубликована: Янв. 29, 2024

Abstract The anatomical structure of roots determines their function. Coexisting species complementarily forage nutrients by themselves (e.g. root strategy) and fungal partners mycorrhizal strategy), leading to a trade‐off between strategy strategy. However, few studies have specifically evaluated whether how the structures are involved in this trade‐off, especially for alpine ecosystems limited extreme climate. Here, absorptive chemical traits three key commonly associated with nutrient foraging strategies, that is indicated first‐order length branching intensity arbuscular colonization, were examined across 68 herbaceous meadows Tibetan Plateau. We observed higher had more protoxylem poles, thinner cortices smaller cortical cells, whereas colonization longer consistently thicker larger cells. Unexpectedly, responsible uptake decoupled from stelar specialized water transportation. decoupling may be related non‐coordinated changes soil availability In addition, we found thickness radius increased at similar rate rather than well‐reported different rates increasing diameter. Synthesis : Our results demonstrate internal makeup plays an integral role forming diverse strategies below‐ground. These findings provide new insights into our understanding plant coexistence responses climate change on

Язык: Английский

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A trait-based root acquisition-defence-decomposition framework in angiosperm tree species

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Июнь 21, 2024

Abstract To adapt to the complex belowground environment, plants make trade-offs between root resource acquisition and defence ability. This includes forming partnerships with different types of associating microorganisms, such as arbuscular mycorrhizal ectomycorrhizal fungi. These trade-offs, by mediating chemistry, exert legacy effects on nutrient release during decomposition, which may, in turn, affect ability new roots re-acquire resources, thereby generating a feedback loop. However, linkages at basis this potential loop remain largely unquantified. Here, we propose trait-based ‘acquisition-defence-decomposition’ conceptual framework test strength relevant across 90 angiosperm tree species. We show that, plant species level, root-fungal symbiosis gradient within economics space, chemical (condensed tannins), decomposition rate are closely linked, providing support framework. Beyond dichotomy mycorrhizal-dominated versus ectomycorrhizal-dominated systems, suggest continuous shift loops, from ‘high symbiosis-low defence-fast decomposition-inorganic nutrition’ evolutionarily ancient taxa symbiosis-high defence-slow decomposition-organic more modern taxa. provides foundation for testable hypotheses multidimensional species’ strategies ecosystem cycling an evolutionary context.

Язык: Английский

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Divergent intra- and interspecific root order variability identifies a two-dimensional root economics spectrum

Plant and Soil, Год журнала: 2024, Номер 499(1-2), С. 473 - 490

Опубликована: Янв. 9, 2024

Язык: Английский

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Multi-dimensionality in plant root traits: progress and challenges

Journal of Plant Ecology, Год журнала: 2024, Номер 17(4)

Опубликована: Май 17, 2024

Язык: Английский

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