Mycorrhiza最新文献

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Omics approaches to investigate pre-symbiotic responses of the mycorrhizal fungus Tulasnella sp. SV6 to the orchid host Serapias vomeracea. 菌根真菌Tulasnella sp. SV6对兰花寄主Serapias vomeracea共生前反应的组学研究。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-04-02 DOI: 10.1007/s00572-025-01188-6
Silvia De Rose, Fabiano Sillo, Andrea Ghirardo, Jörg-Peter Schnitzler, Raffaella Balestrini, Silvia Perotto
{"title":"Omics approaches to investigate pre-symbiotic responses of the mycorrhizal fungus Tulasnella sp. SV6 to the orchid host Serapias vomeracea.","authors":"Silvia De Rose, Fabiano Sillo, Andrea Ghirardo, Jörg-Peter Schnitzler, Raffaella Balestrini, Silvia Perotto","doi":"10.1007/s00572-025-01188-6","DOIUrl":"10.1007/s00572-025-01188-6","url":null,"abstract":"<p><p>Like other plant-microbe symbioses, the establishment of orchid mycorrhiza (ORM) is likely to require specific communication and metabolic adjustments between the two partners. However, while modulation of plant and fungal metabolism has been investigated in fully established mycorrhizal tissues, the molecular changes occurring during the pre-symbiotic stages of the interaction remain largely unexplored in ORM. In this study, we investigated the pre-symbiotic responses of the ORM fungus Tulasnella sp. SV6 to plantlets of the orchid host Serapias vomeracea in a dual in vitro cultivation system. The fungal mycelium was harvested prior to physical contact with the orchid roots and the fungal transcriptome and metabolome were analyzed using RNA-seq and untargeted metabolomics approaches. The results revealed distinct transcriptomic and metabolomic remodelling of the ORM fungus in the presence of orchid plantlets, as compared to the free-living condition. The ORM fungus responds to the presence of the host plant with a significant up-regulation of genes associated with protein synthesis, amino acid and lipid biosynthesis, indicating increased metabolic activity. Metabolomic analysis supported the RNA-seq data, showing increased levels of amino acids and phospholipids, suggesting a remodelling of cell structure and signalling during the pre-symbiotic interaction. In addition, we identified an increase of transcripts of a small secreted protein that may play a role in early symbiotic signalling. Taken together, our results suggest that Tulasnella sp. SV6 may perceive information from orchid roots, leading to a readjustment of its transcriptomic and metabolomic profiles.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"26"},"PeriodicalIF":3.3,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11965168/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143764462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Does the flavonoid quercetin influence the generalist-selective nature of mycorrhizal interactions in invasive and non-invasive native woody plants? 黄酮类槲皮素是否影响入侵和非入侵原生木本植物菌根相互作用的一般选择性?
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-31 DOI: 10.1007/s00572-025-01196-6
Valentina Borda, Magali Burni, Noelia Cofré, Silvana Longo, Tomás Mansur, Gabriela Ortega, Carlos Urcelay
{"title":"Does the flavonoid quercetin influence the generalist-selective nature of mycorrhizal interactions in invasive and non-invasive native woody plants?","authors":"Valentina Borda, Magali Burni, Noelia Cofré, Silvana Longo, Tomás Mansur, Gabriela Ortega, Carlos Urcelay","doi":"10.1007/s00572-025-01196-6","DOIUrl":"10.1007/s00572-025-01196-6","url":null,"abstract":"<p><p>It has been suggested that invasive plant species are more generalist than non-invasive species in their interactions with arbuscular mycorrhizal fungi (AMF), allowing them to associate with novel AMF communities. There is emerging evidence suggesting that the flavonoid quercetin may play a role in regulating these interactions as a signaling compound. In this study, we experimentally grew three invasive alien and three non-invasive native woody species with AMF communities collected from within (though foreign to invasives) and outside their current distribution ranges. After 96 days, we: (a) assessed mycorrhizal colonization rates; (b) evaluated the impact of these interactions on plant performance (growth and phosphorus nutrition); and (c) tested whether these responses were influenced by the addition of quercetin to the plant growth medium. Our findings reveal that the invasive species exhibited mycorrhizal colonization when grown with both novel AMF communities and benefited from them in terms of phosphorus (P) nutrition. In contrast, two of the three non- invasive native species showed mycorrhizal colonization and enhanced P nutrition only with AMF from their current distribution range, but not with novel AMF from outside their range, suggesting selective behavior in their mycorrhizal interactions. The addition of quercetin did not have a strong effect on mycorrhizal colonization in either invasive or non-invasive native species. However, quercetin promoted moderate increases in P nutrition in the two non-invasive native species when grown with the novel AMF communities. Overall, the results suggest that invasive species are more generalist in their AM symbiosis than two of the three non-invasive species, and that the addition of quercetin had a limited, moderate influence on their AM interactions.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"25"},"PeriodicalIF":3.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative genomics reveals substantial divergence in metal sensitive and metal tolerant isolates of the ericoid mycorrhizal fungus Oidiodendron maius. 比较基因组学揭示了稻瘟病菌根真菌oididendron maus的金属敏感和金属耐受分离株的实质性差异。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-21 DOI: 10.1007/s00572-025-01191-x
Stefania Daghino, Claude Murat, Stéphane De Mita, Elena Martino, Silvia Perotto
{"title":"Comparative genomics reveals substantial divergence in metal sensitive and metal tolerant isolates of the ericoid mycorrhizal fungus Oidiodendron maius.","authors":"Stefania Daghino, Claude Murat, Stéphane De Mita, Elena Martino, Silvia Perotto","doi":"10.1007/s00572-025-01191-x","DOIUrl":"10.1007/s00572-025-01191-x","url":null,"abstract":"<p><p>Some heavy metal tolerant fungal isolates capable of forming ericoid mycorrhiza can also confer increased metal tolerance to the host plant. One of these fungal isolates, Oidiodendron maius Zn, has been characterized and a few molecular mechanisms underlying its metal tolerant phenotype have been identified. Here, we investigate the genomic divergences between the available genome of O. maius Zn and the genomes of metal tolerant and sensitive isolates of O. maius, with the aim of identifying genes or intergenic regions possibly involved in the display of the tolerance. The resequenced genomes of 8 tolerant and 10 sensitive isolates were mapped on the reference, O. maius Zn, yielding 357 gene models from the reference that were either missing or too polymorphic to be identified in the genomes of the sensitive isolates. These regions included genes with functions related to defense mechanisms and with unknown functions. One third of the predicted gene models turned out to be highly polymorphic, including many enriched GO terms, i.e. DNA/RNA metabolism and modification, chromosome/chromatin organization, protein biosynthesis, metabolism and function, energy consumption/transfer and mitochondrion. Overall, our findings indicate that the tolerant phenotype in O. maius likely arises from multiple genetic adaptations rather than a singular mechanism.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"24"},"PeriodicalIF":3.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11928401/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143674226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanism allowing biochar to aid in arbuscular mycorrhizal colonization in Panax quinquefolius L. roots and improve secondary metabolite production. 生物炭促进西洋参根丛枝菌根定植和提高次生代谢物产量的机制。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-19 DOI: 10.1007/s00572-025-01195-7
Xiaoli Chen, Zhifang Ran, Yue Wang, Tian Chen, Lanping Guo, Lei Fang, Jie Zhou
{"title":"Mechanism allowing biochar to aid in arbuscular mycorrhizal colonization in Panax quinquefolius L. roots and improve secondary metabolite production.","authors":"Xiaoli Chen, Zhifang Ran, Yue Wang, Tian Chen, Lanping Guo, Lei Fang, Jie Zhou","doi":"10.1007/s00572-025-01195-7","DOIUrl":"10.1007/s00572-025-01195-7","url":null,"abstract":"<p><p>Panax quinquefolius L, a medicinal plant of the family Araliaceae, has been used in China for more than 300 years. The quality of its medicinal materials is a significant concern. Our previous studies have shown that arbuscular mycorrhizal fungi (AMF) promote the growth of P. quinquefolius and facilitate the accumulation of the active ingredient ginsenosides. However, these beneficial effects are limited by the low AMF colonization rate in production settings, requiring interventions to improve the colonization rate. Biochar is considered an effective soil amendment. Our preliminary experiments indicate that biochar can enhance the inter-root microecology of P. quinquefolius, as well as increase the AMF colonization rate, but the mechanism was not clear. Therefore, we propose using biochar to increase the AMF colonization rate. In this study, we explore the use of biochar to promote the AMF infestation rate of P. quinquefolius and its potential mechanisms. The mechanism was explored by setting up eight treatments. The colonization rate and intensity of AMF in P. quinquefolius roots were assessed using a Trypan Blue solution. Rhizosphere soil microorganisms were analyzed by 16S and ITS sequencing, and secondary metabolites were identified via non-targeted metabolomics. The results showed that the AMF and 2% biochar combined (AMF + BC2) treatment significantly increased both the colonization rate and colonization intensity of AMF, which were 53.58% and 195.95% higher than that of AMF, respectively. The colonization and rhizosphere AMF data indicate that the application of biochar promotes AMF colonization from outside to inside the root. In addition, biochar attracted potentially beneficial microorganisms such as Sphingobium, Sphingomonas, and Novosphingobium, which are positively correlated with AMF and promote AMF colonization. These microorganisms are closely linked with active secondary metabolites, such as Sphingobium, which is positively correlated with L-malic acid. In conclusion, biochar can improve the quality of P. quinquefolius by promoting the formation of mycorrhizae. This finding provides a theoretical basis for the observed effect of the co-application of biochar and AMF on the growth and active ingredient accumulation of P. quinquefolius.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"23"},"PeriodicalIF":3.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fungicide seed treatments delay arbuscular mycorrhizal fungi colonization of winter wheat in the greenhouse, but the effect is attenuated in the field. 杀菌剂种子处理延缓了冬小麦丛枝菌根真菌在温室内的定植,但在田间效果减弱。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-18 DOI: 10.1007/s00572-025-01199-3
Hardy Brieuc, Belvaux Eléonore, Huyghebaert Bruno, Declerck Stéphane, Calonne-Salmon Maryline
{"title":"Fungicide seed treatments delay arbuscular mycorrhizal fungi colonization of winter wheat in the greenhouse, but the effect is attenuated in the field.","authors":"Hardy Brieuc, Belvaux Eléonore, Huyghebaert Bruno, Declerck Stéphane, Calonne-Salmon Maryline","doi":"10.1007/s00572-025-01199-3","DOIUrl":"10.1007/s00572-025-01199-3","url":null,"abstract":"<p><p>Seed-applied fungicides support agricultural production by controlling seed- or soil-borne diseases. However, they can impact non-target soil organisms. In this study, we investigated the effect of eight seed treatments (including two authorized for organic farming) on root colonization of winter wheat (Triticum aestivum L.) by arbuscular mycorrhizal (AM) fungi. One experiment was conducted in greenhouse conditions, on a sterile substrate inoculated with the AM fungus Rhizophagus irregularis MUCL 41833 and one in field conditions, where winter wheat was colonized by native soil AM fungi. In greenhouse conditions, the six conventional seed treatments reduced root colonization five weeks after sowing. No difference with the control treatment was measured thereafter for a product containing triazole alone. In contrast, seed treatments containing fludioxonil (fungicide molecule alone or formulated with the triazole difenoconazole), and prochloraz formulated with the triazole triticonazole significantly reduced root colonization until 11 weeks after sowing. Notably, when formulated with sedaxane, the adverse effect of fludioxonil was reduced. The negative effect of seed treatments on AM fungal root colonization in field was smaller than in the greenhouse and generally not significant, with disparate results from one timestep to another. This may be related to the dilution or the degradation of the active ingredients in the soil during the winter period or AM fungal species/strain involved in symbiosis. Overall, our results outline that the direct effect of seed treatment is highly variable depending on the modes of action, half-lives and interactions between active ingredients. By contributing to highlight the undesired effects of pesticides on AM fungi (i.e., by delaying root colonization), this study pleads for a reduction of pesticide applications to encourage the rapid and efficient establishment of functional mycorrhizal symbioses.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"22"},"PeriodicalIF":3.3,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143657745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The similarity between arbuscular mycorrhizal fungi communities of trees and nearby herbs in a planted forest exhibited within-site spatial variation patterns explained by local soil conditions. 人工林树木与周边草本植物丛枝菌根真菌群落的相似性表现出由当地土壤条件解释的立地内空间变异格局。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-14 DOI: 10.1007/s00572-025-01197-5
Akotchiffor Kevin Geoffroy Djotan, Norihisa Matsushita, Yosuke Matsuda, Kenji Fukuda
{"title":"The similarity between arbuscular mycorrhizal fungi communities of trees and nearby herbs in a planted forest exhibited within-site spatial variation patterns explained by local soil conditions.","authors":"Akotchiffor Kevin Geoffroy Djotan, Norihisa Matsushita, Yosuke Matsuda, Kenji Fukuda","doi":"10.1007/s00572-025-01197-5","DOIUrl":"10.1007/s00572-025-01197-5","url":null,"abstract":"<p><p>The similarity between the arbuscular mycorrhizal fungi (AMF) communities of trees and neighboring understory herbs in forests remains unclear, which we aimed to clarify. We traced and collected basal roots of 20 randomly chosen Cryptomeria japonica (Cupresaceae) trees and the surrounding soil at four microsites in 1 km<sup>2</sup> of a Cr. japonica forest. One Chloranthus serratus (Chlorantaceae) herb immediately at the base of each sampled tree was excavated to collect an intact root system. We amplified a partial small subunit of fungal ribosomal DNA (18S) using Illumina MiSeq amplicon sequencing. Soil physicochemical properties were also measured. We detected 670 and 679 AMF operational taxonomic units (OTUs) in Cr. japonica and Ch. serratus, respectively, belonging to Acaulospora, Dominikia, Glomus, Microkamienskia, Rhizophagus, Septoglomus, and Sclerocystis. Seventeen OTUs were detected in the roots of both host species at average relative abundances > 1%. Among them, four dominant OTUs with an average relative abundance > 10% were concurrently detected in the roots of 17 tree-herb sets. The composition and similarity of their AMF communities were spatially varied, significantly driven by spatially varying soil pH, total C, N, C/N, and elevation, but not electroconductivity, supported by the microsite-dependent distributions of their dominant OTUs. We concluded that the similarity of AMF communities between trees and neighboring understory herbs depends on the soil physicochemical conditions that influence the distribution of their dominant AMF.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"21"},"PeriodicalIF":3.3,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11909092/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The C24-methyl/ethyl sterol ratio is increased by Rhizophagus irregularis colonization. 不规则根噬菌定殖使c24 -甲基/乙基甾醇比升高。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-12 DOI: 10.1007/s00572-025-01193-9
Pierre-Emmanuel Courty, Jérôme Fromentin, Lucy Martine, Célien Durney, Camille Martin Desbouis, Daniel Wipf, Niyazi Acar, Patricia Gerbeau-Pissot
{"title":"The C24-methyl/ethyl sterol ratio is increased by Rhizophagus irregularis colonization.","authors":"Pierre-Emmanuel Courty, Jérôme Fromentin, Lucy Martine, Célien Durney, Camille Martin Desbouis, Daniel Wipf, Niyazi Acar, Patricia Gerbeau-Pissot","doi":"10.1007/s00572-025-01193-9","DOIUrl":"10.1007/s00572-025-01193-9","url":null,"abstract":"<p><p>Plant-microorganism interactions underlie many ecosystem roles, in particular the enhancement of plant nutrition through mutualistic relationships, such as the arbuscular mycorrhizal symbiosis that affects a large proportion of land plants. The establishment of this interaction induces a wide range of signaling pathways in which lipids, and particularly sterols, may play a central role. However, their supported functions are poorly known. We performed a study on eleven model plants (banana, barrelclover, flax, grapevine, maize, pea, poplar, potato, rice, sorghum and tomato) to measure the sterol content and characterize the sterol composition of roots that were either non-colonized or colonized by the arbuscular mycorrhizal fungal model Rhizophagus irregularis DAOM197198. Our results reveal a systematic increase in the content of C24-methyl sterols in crude extracts of colonized roots as compared to non-colonized roots. In addition, the transcripts of SMT1 and SMT2 (which encode enzymes that produce C24-methyl and C24-ethyl sterols, respectively) were differentially accumulated in colonized plant roots. No common regulation pattern was observed among plants. The phylogenetic relationship of members of the SMT1 and SMT2 families in more than 100 fully sequenced genomes of plants, ferns, mosses, algae and fungi has allowed the identification of unambiguous clades. Our results therefore highlight a conserved arbuscular mycorrhizal symbiosis-dependent regulation of the root sterol composition in angiosperms, with some plant specificities.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"20"},"PeriodicalIF":3.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143615974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological spore-based characterisation and molecular approaches reveal comparable patterns in glomeromycotan communities. 基于形态学孢子的特征和分子方法揭示了肾小球菌群落的类似模式。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-10 DOI: 10.1007/s00572-025-01198-4
Noelia Cofré, Gabriel Grilli, Nicolás Marro, Martín Videla, Carlos Urcelay
{"title":"Morphological spore-based characterisation and molecular approaches reveal comparable patterns in glomeromycotan communities.","authors":"Noelia Cofré, Gabriel Grilli, Nicolás Marro, Martín Videla, Carlos Urcelay","doi":"10.1007/s00572-025-01198-4","DOIUrl":"10.1007/s00572-025-01198-4","url":null,"abstract":"<p><p>Traditionally, characterisation and comparison of AMF communities has been carried out by morphological identification of asexual spores in soil. In recent decades, molecular methods such as soil metabarcoding have become more popular than morphological identification of spores, but direct comparisons of the efficiency of both approaches have been rare. In this study, we compared AMF communities in soil samples from vegetable farms using both morphological and molecular methods (internal transcribed spacer, ITS, markers). In addition, we performed a systematic literature search and retrieved nine studies that analysed AMF communities using both approaches in the same soil samples, mostly in agroecosystems. Our results show that AMF communities determined by morphological spore-based identification are different than those determined by molecular genetic markers, but not as often claimed. In some cases, the morphological spore-based characterisation of spores revealed more diverse glomeromycotan communities. Moreover, in several cases the spore-based methods recovered taxa that the molecular methods did not, while in other cases the opposite was observed. The field and literature-based results of this study indicate that for a comprehensive and exhaustive characterisation of AMF communities it is necessary to combine both approaches. However, if the aim is to compare communities under different environmental conditions, both approaches provide comparable patterns.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"19"},"PeriodicalIF":3.3,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143597254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unlocking germination: the role of mycorrhizal strain and seed provenance in driving seed germination of a widespread terrestrial orchid. 解锁萌发:菌根菌株和种子来源在驱动广泛分布的陆生兰花种子萌发中的作用。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-10 DOI: 10.1007/s00572-025-01184-w
Zeyu Zhao, Luna Yang, Yaoyao Wang, Xin Qian, Gang Ding, Hans Jacquemyn, Xiaoke Xing
{"title":"Unlocking germination: the role of mycorrhizal strain and seed provenance in driving seed germination of a widespread terrestrial orchid.","authors":"Zeyu Zhao, Luna Yang, Yaoyao Wang, Xin Qian, Gang Ding, Hans Jacquemyn, Xiaoke Xing","doi":"10.1007/s00572-025-01184-w","DOIUrl":"10.1007/s00572-025-01184-w","url":null,"abstract":"<p><p>Orchids represent an important component of biodiversity in many ecosystems worldwide, notwithstanding their seed germination and distribution may to a large extent be determined and influenced by mycorrhizal fungi. While it is commonly assumed that widespread orchids are mycorrhizal generalists, the degree to which mycorrhizal diversity supports seed germination remains relatively underexplored. In this study, we investigated the role of a variety of Ceratobasidium fungi in supporting seed germination of the widespread terrestrial orchid Gymnadenia conopsea across China. Twelve Ceratobasidium strains isolated from G. conopsea and other orchids were examined for their ability to support germination of G. conopsea seeds collected from twelve sites across China. Of the twelve tested strains, six were able to support seed germination, while the remaining six strains showed no activity. Compatible strains showed a broad phylogenetic breadth, indicating the G. conopsea is capable of initiating associations with a diverse array of Ceratobasidium fungi. However, the six compatible strains differed in their ability to support protocorm formation. Moreover, germination success of seeds collected from different sites differed among Ceratobasidium strains. Seeds from northern China had a significantly higher number of compatible strains (average 5.6) than seeds from southwestern China (average 3.5). Our results suggest that G. conopsea is not only a mycorrhizal generalist in the adult stage but also in the seed germination stage, at least towards Ceratobasidium fungi. However, the significant strain-provenance interactions indicate regional differences in orchid-fungus interactions. These findings are important for improving local population restoration programs and germplasm conservation of this widespread and endangered orchid species.</p>","PeriodicalId":18965,"journal":{"name":"Mycorrhiza","volume":"35 2","pages":"18"},"PeriodicalIF":3.3,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143597255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arbuscular mycorrhizal fungi strongly influence the endorhizosphere of grapevine rootstock with soil type as a key factor. 丛枝菌根真菌对葡萄根茎的内生层影响很大,而土壤类型是一个关键因素。
IF 3.3 2区 生物学
Mycorrhiza Pub Date : 2025-03-05 DOI: 10.1007/s00572-025-01194-8
K Štůsková, A Vavřiník, E Hakalová, J Čechová, D Gramaje, A Eichmeier
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