Mycorrhizal research now: from the micro‐ to the macro‐scale DOI Open Access
Francis Martin, Maarja Öpik, Ian A. Dickie

et al.

New Phytologist, Journal Year: 2024, Volume and Issue: 242(4), P. 1399 - 1403

Published: April 24, 2024

Mycorrhizal symbioses are complex relationships between plants and fungi that significantly affect ecosystem dynamics functions across terrestrial environments. These symbiotic interactions, which involve a diverse range of fungal lineages, including Mucoromycotina, Glomeromycotina, Ascomycota, Basidiomycota, as well various plant hosts, critical for nutrient cycling, carbon sequestration, growth, resilience both partners to environmental stressors. Recent advances in molecular biology, genetics, sciences have enhanced our understanding mycorrhizal illuminated the mechanisms govern these intricate interactions their ecological implications. In this New Phytologist Special Issue on 'Mycorrhizal research now: from micro- macro-scale', we bring together collection studies, examine types symbioses, such arbuscular mycorrhizal, orchid ericoid ectomycorrhizal associations. studies explored molecular, physiological, dimensions uncovering conversations illuminating broader By integrating perspectives, endeavors untangle multifaceted cascading effects ecosystems. Through distilling key insights goal is identify emerging themes future directions research. Martin & van der Heijden (2024, issue pp. 1486–1506) review genomic revealed genes involved uptake symbiosis development, discuss adaptations fundamental evolution lifestyles. Their work integrated genomics with theory, thereby enhancing evolutionary functional significance how hold promise sustainable agriculture forestry by acquisition stress tolerance. The elucidation small RNA-mediated transcriptional regulation Ledford et al. 1534–1544) offers novel into governing symbiosis. regulatory networks secreted effector proteins RNAs orchestrate providing potential targets manipulating efficiency productivity agricultural restoration contexts. Research conducted Giovannetti (2024a) sheds light communication exist during interactions. findings provide new underlying pathogenic signaling pathways, offering perspectives mutualistic coevolutionary struggle microbial (Giovannetti al., 2024b, 1404–1407). One central cycling; mycorrhizas play significant role mineralizing nutrients transporting soil profile (Mahmood 2024, 1545–1560). use isotopic, approaches has continued advance understanding. Resource exchange symbionts crucial cycling (Zhao 1507–1522). Market theories resource recently dominated (Dickie 2015). However, Bogar 1523–1528) suggests market should be re-examined, particularly predicting short-term outcomes. This supported study Corrêa 1561–1575), who did not find support regulating rice plants, suggesting driven surplus resources. Lekberg 1576–1588) found supply higher at high P sites than low sites, contrary expectations under theory. Plett 1589–1602) also nitrogen transfer correlated free amino acids hyphae, may consistent resources driving exchange, while direct C N was supported. Understanding challenge requires examination community characteristics. (2024) argue whole-community inoculum can explain differences observations compared previous, more controlled, single-fungus experiments. Additionally, traits habitat-specific, suggested concentrations endemic cosmopolitan species (McPolin 1603–1613). Plant communities, terms strategies, roles cycling. Bönisch 1614–1629) show having multiple strategies driver diversity effects. Further, Gille 1630–1644) shed interplay nonsymbiotic Nonmycorrhizal species, Cyperaceae, ecosystems, calling deeper role. Zhang 1645–1660) associated mycorrhiza-assisted iron processing discovered there trade-offs growth. provides nutrition tolerance natural Perotto Balestrini 1408–1416) examined associations, led identification conserved underlie structural similarities types, researchers made contributions development unified framework aids trajectories symbioses. fate food web Kakouridis 1661–1675). They utilized nanoSIMS imaging isotope ratio mass spectrometry (IRMS) track labeled fractionation aggregates specific groups bacteria were enriched AM fungi-originating C. Along same lines, L. Wang 1529–1533) summarized core microbiome matters operation holobiont. Auer al.'s 1676–1690) elucidated guilds functioning, stabilization, overall resilience, highlighting delicate balance within communities implications functioning stability. Groundbreaking meta-transcriptomic emphasizes less-studied fungi, Mucoromycota specifically Mortierella, demonstrates value using minimal amplification transcriptomes gain saprotrophic Wu 1417–1425) proposed conceptual elucidates four pathways through influence organic matter dynamics. integrates ecology biogeochemical enhance drive sequestration management climate change mitigation significant. D. 1825–1834) validation metabarcoding data quantitative assessments methodological analyzing poorly known biodiversity conservation restoration. Feedback mixed forest stands different an important topic better patterns, management, conservation. subtropical experimental system, Singavarapu 1691–1703) clarified coexistence trees shapes types. Such systems excellent clarifying gradients host specificity which, Voller 1426–1435), might operate via mechanistic filters: partner availability, recognition, competition colonization (space), function. coexisting function, reduced recalcitrance roots leaves (Xia 1476–1485). An appropriate design avoid misinterpretation results removal experiments, tested Monteux 1835–1846) experiment ecto- Northern Sweden. Furthermore, Mujica 1436–1440) call interdisciplinary collaborations continental-scale approach mitigate geographical biases trait databases. Global includes factors ecosystems Hewitt 1704–1716) investigated warming tundra plant–mycorrhizal revealing responses plant–fungal scenarios, high-latitude regions informing mitigating impacts Elevated CO2 levels, another global change, emphasize importance Using nearly 150 yr herbarium collections, Michaud 1717–1724) demonstrated increasing levels contribute declining status all forests, regardless type deposition. Nitrogen deposition Jörgensen 1725–1738) fungi. Although biomass high-N showed causes substantial decline biomass. restructures relationships, shrubs underscore need resolve temperatures background atmospheric rapidly change. biogeography ecology, enhances shaping patterns spatial scales, management. glacier retreat, opening lands succession model primary succession. Carteron 1739–1752) develop 46 retreats around globe, finding fast (in time) It essential understand impact composition drives processes. Invasive Amanita phalloides, frequency, persistence cause concern. Population genetics Golan 1753–1770) invasive just opportunistic but establish large persistent genets belowground. opportunity elucidate adaptive employed colonize habitats outcompete native although processes remain unclear. A McPolin emphasized distribution among rainforests, maintaining function resilience. highlights distinct indigenous diversity, valuable aimed preserving services face changes. life history further insights. Sporulation fungus Rhizophagus irregularis yields spores two morphologies, those matching phenotypes fasciculatus case least isolates, described Kokkoris (2024). Lofgren 1448–1475) Suillus, overview its phylogeny, genomics, mating specificity, preferences invasion, SuilluScope database isolates phenotypic genome information, protocols. massive help anyone working Suillus or other plant–fungus systems. Moreno Jiménez 1441–1447) dual method encompasses capitalizes collaborative efforts beneficial microorganisms innovative solutions improving sustainability security amidst phosphorus consortia hyphae biogeochemistry. sustainability, security, Spores harbor endobacteria. Based field-collected spores, it appears endobacterial inside individual diverse, remarkable number Glomeromycotina (Lastovetsky 1785–1797). Clearly, necessary learn about bacterial endosymbionts hyphae-associating determine (L. 2024). Peng 1798–1813) comparative low-input conventional farming methods illuminates varying functions. doing so, intensive practices inform ensuring long-term system. elucidating influencing urban environments, Metzler 1814–1824) provided green infrastructure planning. Ranging ecosystem-scale dynamics, investigations offer Considering composite gained several surfaced, shedding avenues strategies. First, dialogues represent rich frontier exploration. Unraveling blueprints holds associations significance. Future area delve transcriptomic landscapes partners, genetic basis Second, consequences extend far beyond Integrating theory empirical mediated focus scaling up local ecosystem-level processes, incorporating surveys, landscape-scale analyses, modeling predict services. Third, practical applications immense agriculture, restoration, mitigation. Harnessing tolerance, crop productivity, fertility, explore harnessing contexts, agroecosystems spaces, fostering collaboration scientists, practitioners, policymakers translate actionable solutions. conclusion, collective derived recent holistic dedication exploring disciplines. addressing knowledge gaps, embracing technologies, cross-disciplinary dialogue, unlock frontiers paving way resilient changing world. FMM's Agence Nationale de la Recherche (Laboratoire d'Excellence ARBRE (ANR-11-LABX-0002-01)) Huazhong Agricultural University, Wuhan, China. IAD's BioProtection Aotearoa. MÖ Estonian Council grant no. 1789 (project FUNFARM). We would like thank Dr Holly Slater her assembling Issue. Editorial Office Note: apologize readers included journal. due oversight.

Language: Английский

Natural variation in the GmVPE1 promoter contributes to phosphorus re‐translocation to seeds and improves soybean yield DOI Creative Commons
Jiaxin Chen, Wenting Lian,

Z. Li

et al.

Plant Biotechnology Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Phosphorus (P) is an essential yet frequently deficient plant nutrient. Optimizing P distribution and recycling between tissues vital for improving utilization efficiency (PUE). Yet, the mechanisms underlying transport re-translocation of within plants remain unclear. Here, wide-ranging natural diversity in seed allocation positive correlations among yield traits were found using 190 soybean accessions field trials. Among them, P-efficient genotype BX10 outperformed BD2 assessments PUE that largely explained through differences redistribution from pods to seeds under low stress. Pods therefore subjected transcriptome analysis, GmVPE1 was identified as a vacuolar Pi transporter investigate further. Importantly, significant DNA polymorphism promoter regions remarkably associated with weight grown on P-deficient soils. Further analyses suggested mRNA abundance haplotype 2 (Hap) significantly higher than GmVPE1Hap1. highly upregulated by deficiency preferentially expressed pods, seeds, coats, which consistent GUS staining transgenic carrying pGmVPE1Hap2::GUS. Near-isogenic lines GmVPE1Hap2 allele, along stable soybeans overexpressing GmVPE1Hap1 background, had increases PUE, more setting, greater yields both greenhouse trials control plants. In summary, variation alleles determines genetic expression subsequent phenotypes, impacts yield, thereby makes this important resource molecular breeding.

Language: Английский

Citations

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Labile Carbon Input Mitigates the Negative Legacy Effects of Nitrogen Addition on Arbuscular Mycorrhizal Symbiosis in a Temperate Grassland DOI Creative Commons
Sitong Liu, Yuxiao Zhang,

Xiaohua Yu

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 456 - 456

Published: Feb. 4, 2025

Nitrogen (N) deposition and carbon (C) addition significantly influence the dynamics of plant–microbe interactions, particularly altering symbiotic relationship between plants arbuscular mycorrhizal fungi (AMF). However, effects underlying mechanisms labile C input on AMF various plant species in a nitrogen-enriched environment remain knowledge gap. A seven-year field experiment was conducted to examine how six levels N three impact colonization four key species: Leymus chinensis (Trin. ex Bunge) Tzvelev, Stipa baicalensis Roshev., Thermopsis lanceolata R. Br. Potentilla bifurca Linn. Our results showed that additions exert different species. Labile mitigated historical negative effects, for S. baicalensis, enhancing infection promoting nutrient exchange under high-N low-C conditions. The both L. T. changed weak mutualism low-N high-C conditions, with significant decreases vesicular abundance. Plant root stoichiometry plays critical role modulating symbiosis, -C as reflected increased observed P. bifurca. findings emphasize species-specific nutrient-dependent revealing targeted can mitigate legacy enrichment. Effective management is crucial importance ecological restoration efforts temperate grasslands affected by long-term

Language: Английский

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Nitrogen deficiency drives fungal compositional shifts without functional changes in wheat rhizosphere DOI Creative Commons
Lok Hang Chan, Shu Kee Lam, Deli Chen

et al.

Rhizosphere, Journal Year: 2025, Volume and Issue: unknown, P. 101030 - 101030

Published: Feb. 1, 2025

Language: Английский

Citations

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The Rhizophagus irregularis permease RiFTR1 functions without a ferroxidase partner for reductive iron transport DOI Creative Commons
Elisabeth Tamayo, Víctor Manuel López-Lorca, Chan Sup Shim

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 18, 2025

Abstract The contribution of arbuscular mycorrhizal fungi (AM fungi) to plant iron (Fe) acquisition has been demonstrated in several studies. A previous investigation revealed that the AM fungus Rhizophagus irregularis utilizes a high-affinity reductive pathway for Fe uptake, mediated by transporter RiFTR1. In this study, we used genome-wide approach R. find genes encoding ferroxidases multicopper oxidase (MCO) gene family an attempt identify ferroxidase partner Nine putatively MCOs ( RiMCO1-9 ) were identified. Yeast complementation assays RiMCO1 and RiMCO3 can function as ferroxidases, suggesting their involvement uptake pathway. Surprisingly, RiFTR1 was capable transporting yeast without partner, resembling transport mechanism IRT1-like systems. exhibited increase expression arbuscules. Overexpression Medicago truncatula roots led enhanced colonization arbuscule abundance, highlighting significance symbiosis.

Language: Английский

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Lei bamboo (Phyllostachys praecox) shows greater sensitivity to salt stress than to hypoxia stress: insights from plant physiology, metabolome and soil microbiome DOI
Jiawei Ma, Wenbin Liu, Mei Wang

et al.

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Language: Английский

Citations

0

The Isolation of Free-Living Nitrogen-Fixing Bacteria and the Assessment of Their Potential to Enhance Plant Growth in Combination with a Commercial Biostimulant DOI Creative Commons

Elodie Buisset,

Martin Soust, Paul Scott

et al.

Microbiology Research, Journal Year: 2025, Volume and Issue: 16(3), P. 69 - 69

Published: March 18, 2025

The development of microbial-based biostimulants to enhance the growth crops and support a healthy sustainable soil requires isolation large-scale industrial culture effective microorganisms. In this study, work was undertaken isolate characterize free-living nitrogen-fixing bacteria capable acting as alone or by incorporation into and/or supplementation with current commercial crop biostimulant for farmers. Free-living were isolated from soil, sugar cane mulch, plant roots following preliminary in nitrogen-free media that targeted specific groups known diazotrophs. Following identification each 16S rDNA sequence analysis, isolates selected further study identified most closely related Priestia megaterium, Sphingobium yanoikuyae, Burkholderia paludis. Each investigated its capacity promote media. Wheat seedlings inoculated separately, together consortium, combination biostimulant, Great Land Plus®. Compared no-treatment control plants, fresh weights higher both shoots (183.2 mg vs. 330.6 mg; p < 0.05) (320.4 731.3 wheat P. megaterium. also (267.8 (610.3 = S. yanoikuyae. contrast, weight shoot root systems plants B. paludis significantly lower (p than plants. Moreover, when Plus® supplemented consortium megaterium no promotion observed.

Language: Английский

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Molecular Insights into the Positive Role of Soybean Nodulation by GmWRKY17 DOI Open Access
Xiaorui Zhao,

Chunhai Mai,

Liangping Xia

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(7), P. 2965 - 2965

Published: March 25, 2025

Soybean is an important economic oilseed crop, being rich in protein and plant oil, it widely cultivated around the world. Soybeans have been shown to establish a symbiotic nitrogen fixation (SNF) with their compatible rhizobia, resulting formation of nodules. Previous studies demonstrated critical roles phytohormones, such as abscisic acid cytokinin, process legume nodulation. The present study investigated role GmWRKY17, homolog Rosa hybrida (Rh)WRKY13 regulating immunity through cytokinin content signaling soybean Utilizing real-time PCR histochemical staining, we that GmWRKY17 predominantly expressed root Subsequently, analyzed function GmWRKY17-overexpression, RNA interference (RNAi), CRISPR/Cas9 system. Overexpression significantly increases nodule number, while RNAi or CRISPR/Cas9-mediated knockout resulted dramatic repression soybeans. These results highlight functions positive regulator involved Furthermore, manipulation expression impacts genes associated nod factor (NF) pathway, thereby influencing This WRKY-type transcription factors are regulation nodulation, offering new light on molecular basis interaction between legumes rhizobia.

Language: Английский

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Symbiotic nitrogen fixation suppresses root nitrate uptake in Medicago truncatula under nitrate limitation DOI
Fuyu Li, Anil Kumar, Ping Xu

et al.

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

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Mycelium biomass and community composition impact nutrient concentration in arbuscular mycorrhizal fungi at fine spatial scale DOI Creative Commons
Xiaojing Zhang,

Yushan Bo,

Liangchao Jiang

et al.

Functional Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract The dynamic exchange of carbon (C) and nutrients between arbuscular mycorrhizal (AM) fungi their host plants is crucial for shaping the spatial heterogeneity within hyphal network. This influenced not only by mycelial growth its interactions with but also variability soil nutrients. Despite importance, network factors driving this remain poorly understood. In field plant–AM interactions, many studies have predominantly concentrated on large‐scale patterns, disregarding at fine scales potentially missing vital insights into nutrient AM fungi. We conducted an experiment to quantify plant–soil–mycelia a gridded 2 × m quadrat. Hyphal in‐growth bags were installed extract pure mycelium. concentrations C ([C]), nitrogen ([N]), phosphorus ([P]) in both plant mycelium tissues measured. Additionally, fungal community from extracted hyphae was sequenced assess composition. Mycelium [N] [P] ranged 2.18% 3.37% 0.99% 4.46%, respectively, variations much higher than those shoot root tissues. stored significant amounts nutrients, particularly (2.27% average), levels exceeding found tissue over 20‐fold. [C] or concentration negatively correlated, while positively correlated biomass. suggests that primary factor behind biomass, which somewhat species Investigating enhances our understanding cycling ecosystems. research highlights importance studying functional traits introduces concept could serve as underground P reservoirs. Read free Plain Language Summary article Journal blog.

Language: Английский

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Contrasting mechanisms of poplar and rhizosphere soil influenced by urea and compound fertilizer DOI Creative Commons
Yimin You, Shitong Li,

Hongxing Wang

et al.

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 229, P. 120995 - 120995

Published: April 8, 2025

Language: Английский

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