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  1. Article ; Online: Mycorrhizas drive the evolution of plant adaptation to drought.

    Cosme, Marco

    Communications biology

    2023  Volume 6, Issue 1, Page(s) 346

    Abstract: Plant adaptation to drought facilitates major ecological transitions, and will likely play a vital role under looming climate change. Mycorrhizas, i.e. strategic associations between plant roots and soil-borne symbiotic fungi, can exert strong influence ... ...

    Abstract Plant adaptation to drought facilitates major ecological transitions, and will likely play a vital role under looming climate change. Mycorrhizas, i.e. strategic associations between plant roots and soil-borne symbiotic fungi, can exert strong influence on the tolerance to drought of extant plants. Here, I show how mycorrhizal strategy and drought adaptation have been shaping one another throughout the course of plant evolution. To characterize the evolutions of both plant characters, I applied a phylogenetic comparative method using data of 1,638 extant species globally distributed. The detected correlated evolution unveiled gains and losses of drought tolerance occurring at faster rates in lineages with ecto- or ericoid mycorrhizas, which were on average about 15 and 300 times faster than in lineages with the arbuscular mycorrhizal and naked root (non-mycorrhizal alone or with facultatively arbuscular mycorrhizal) strategy, respectively. My study suggests that mycorrhizas can play a key facilitator role in the evolutionary processes of plant adaptation to critical changes in water availability across global climates.
    MeSH term(s) Mycorrhizae/genetics ; Phylogeny ; Droughts ; Symbiosis ; Adaptation, Physiological ; Plants/genetics ; Plants/microbiology
    Language English
    Publishing date 2023-03-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2399-3642
    ISSN (online) 2399-3642
    DOI 10.1038/s42003-023-04722-4
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  2. Article ; Online: Mycorrhizas drive the evolution of plant adaptation to drought

    Marco Cosme

    Communications Biology, Vol 6, Iss 1, Pp 1-

    2023  Volume 10

    Abstract: Phylogenetic comparative analysis using data of 1,638 species of angiosperms and gymnosperms suggests that the evolution of plant adaptation to critical environmental change in water availability across global climates is dependent on mycorrhizas. ...

    Abstract Phylogenetic comparative analysis using data of 1,638 species of angiosperms and gymnosperms suggests that the evolution of plant adaptation to critical environmental change in water availability across global climates is dependent on mycorrhizas.
    Keywords Biology (General) ; QH301-705.5
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: First record of Phytomyxid infection of the non-native seagrass

    Kaldy, James E / Sullivan, Cayla / Dieppa, Angel / Cosme, Ivelisse Cappielo / Lugo, Marco Orizondo / Schiebout, Michael

    Botanica marina

    2023  Volume 66, Issue 2, Page(s) 93–97

    Abstract: Halophila ... ...

    Abstract Halophila stipulacea
    Language English
    Publishing date 2023-02-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1197-6
    ISSN 0006-8055
    ISSN 0006-8055
    DOI 10.1515/bot-2022-0074
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    In stock of ZB MED Bonn / Germany

    Z 73/715: Show issues

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  4. Article ; Online: Correction: A tripartite bacterial-fungal-plant symbiosis in the mycorrhiza-shaped microbiome drives plant growth and mycorrhization.

    Zhang, Changfeng / van der Heijden, Marcel G A / Dodds, Bethany K / Nguyen, Thi Bich / Spooren, Jelle / Valzano-Held, Alain / Cosme, Marco / Berendsen, Roeland L

    Microbiome

    2024  Volume 12, Issue 1, Page(s) 30

    Language English
    Publishing date 2024-02-19
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2697425-3
    ISSN 2049-2618 ; 2049-2618
    ISSN (online) 2049-2618
    ISSN 2049-2618
    DOI 10.1186/s40168-024-01776-2
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  5. Article ; Online: A tripartite bacterial-fungal-plant symbiosis in the mycorrhiza-shaped microbiome drives plant growth and mycorrhization.

    Zhang, Changfeng / van der Heijden, Marcel G A / Dodds, Bethany K / Nguyen, Thi Bich / Spooren, Jelle / Valzano-Held, Alain / Cosme, Marco / Berendsen, Roeland L

    Microbiome

    2024  Volume 12, Issue 1, Page(s) 13

    Abstract: Background: Plant microbiomes play crucial roles in nutrient cycling and plant growth, and are shaped by a complex interplay between plants, microbes, and the environment. The role of bacteria as mediators of the 400-million-year-old partnership between ...

    Abstract Background: Plant microbiomes play crucial roles in nutrient cycling and plant growth, and are shaped by a complex interplay between plants, microbes, and the environment. The role of bacteria as mediators of the 400-million-year-old partnership between the majority of land plants and, arbuscular mycorrhizal (AM) fungi is still poorly understood. Here, we test whether AM hyphae-associated bacteria influence the success of the AM symbiosis.
    Results: Using partitioned microcosms containing field soil, we discovered that AM hyphae and roots selectively assemble their own microbiome from the surrounding soil. In two independent experiments, we identified several bacterial genera, including Devosia, that are consistently enriched on AM hyphae. Subsequently, we isolated 144 pure bacterial isolates from a mycorrhiza-rich sample of extraradical hyphae and isolated Devosia sp. ZB163 as root and hyphal colonizer. We show that this AM-associated bacterium synergistically acts with mycorrhiza on the plant root to strongly promote plant growth, nitrogen uptake, and mycorrhization.
    Conclusions: Our results highlight that AM fungi do not function in  isolation and that the plant-mycorrhiza symbiont can recruit beneficial bacteria that support the symbiosis. Video Abstract.
    MeSH term(s) Mycorrhizae ; Symbiosis ; Plant Roots/microbiology ; Plants ; Bacteria/genetics ; Soil
    Chemical Substances Soil
    Language English
    Publishing date 2024-01-19
    Publishing country England
    Document type Video-Audio Media ; Journal Article
    ZDB-ID 2697425-3
    ISSN 2049-2618 ; 2049-2618
    ISSN (online) 2049-2618
    ISSN 2049-2618
    DOI 10.1186/s40168-023-01726-4
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  6. Article ; Online: On the History of Ecosystem Dynamical Modeling: The Rise and Promises of Qualitative Models.

    Cosme, Maximilien / Thomas, Colin / Gaucherel, Cédric

    Entropy (Basel, Switzerland)

    2023  Volume 25, Issue 11

    Abstract: ... of those provided by quantitative models (e.g., response to press perturbations). Each modeling framework can be ... discrete-event networks (EDEN) modeling framework for this purpose. The EDEN models propose a qualitative ...

    Abstract Ecosystem modeling is a complex and multidisciplinary modeling problem which emerged in the 1950s. It takes advantage of the computational turn in sciences to better understand anthropogenic impacts and improve ecosystem management. For that purpose, ecosystem simulation models based on difference or differential equations were built. These models were relevant for studying dynamical phenomena and still are. However, they face important limitations in data-poor situations. As a response, several formal and non-formal qualitative dynamical modeling approaches were independently developed to overcome some limitations of the existing methods. Qualitative approaches allow studying qualitative dynamics as relevant abstractions of those provided by quantitative models (e.g., response to press perturbations). Each modeling framework can be viewed as a different assemblage of properties (e.g., determinism, stochasticity or synchronous update of variable values) designed to satisfy some scientific objectives. Based on four stated objectives commonly found in complex environmental sciences ((1) grasping qualitative dynamics, (2) making as few assumptions as possible about parameter values, (3) being explanatory and (4) being predictive), our objectives were guided by the wish to model complex and multidisciplinary issues commonly found in ecosystem modeling. We then discussed the relevance of existing modeling approaches and proposed the ecological discrete-event networks (EDEN) modeling framework for this purpose. The EDEN models propose a qualitative, discrete-event, partially synchronous and possibilistic view of ecosystem dynamics. We discussed each of these properties through ecological examples and existing analysis techniques for such models and showed how relevant they are for environmental science studies.
    Language English
    Publishing date 2023-11-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e25111526
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  7. Book ; Online ; Thesis: Impact of mutualistic root fungi on crop quality and pest defense

    Cosme, Marco [Verfasser]

    2015  

    Author's details Marco Cosme
    Keywords Naturwissenschaften ; Science
    Subject code sg500
    Language English
    Publisher Freie Universität Berlin
    Publishing place Berlin
    Document type Book ; Online ; Thesis
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  8. Article ; Online: A coumarin exudation pathway mitigates arbuscular mycorrhizal incompatibility in Arabidopsis thaliana.

    Cosme, Marco / Fernández, Iván / Declerck, Stéphane / van der Heijden, Marcel G A / Pieterse, Corné M J

    Plant molecular biology

    2021  Volume 106, Issue 4-5, Page(s) 319–334

    Abstract: Key message: Overexpression of genes involved in coumarin production and secretion can mitigate mycorrhizal incompatibility in nonhost Arabidopsis plants. The coumarin scopoletin, in particular, stimulates pre-penetration development and metabolism in ... ...

    Abstract Key message: Overexpression of genes involved in coumarin production and secretion can mitigate mycorrhizal incompatibility in nonhost Arabidopsis plants. The coumarin scopoletin, in particular, stimulates pre-penetration development and metabolism in mycorrhizal fungi. Although most plants can benefit from mutualistic associations with arbuscular mycorrhizal (AM) fungi, nonhost plant species such as the model Arabidopsis thaliana have acquired incompatibility. The transcriptional response of Arabidopsis to colonization by host-supported AM fungi switches from initial AM recognition to defense activation and plant growth antagonism. However, detailed functional information on incompatibility in nonhost-AM fungus interactions is largely missing. We studied interactions between host-sustained AM fungal networks of Rhizophagus irregularis and 18 Arabidopsis genotypes affected in nonhost penetration resistance, coumarin production and secretion, and defense (salicylic acid, jasmonic acid, and ethylene) and growth hormones (auxin, brassinosteroid, cytokinin, and gibberellin). We demonstrated that root-secreted coumarins can mitigate incompatibility by stimulating fungal metabolism and promoting initial steps of AM colonization. Moreover, we provide evidence that major molecular defenses in Arabidopsis do not operate as primary mechanisms of AM incompatibility nor of growth antagonism. Our study reveals that, although incompatible, nonhost plants can harbor hidden tools that promote initial steps of AM colonization. Moreover, it uncovered the coumarin scopoletin as a novel signal in the pre-penetration dialogue, with possible implications for the chemical communication in plant-mycorrhizal fungi associations.
    MeSH term(s) Arabidopsis/genetics ; Arabidopsis/metabolism ; Arabidopsis/microbiology ; Fungi/growth & development ; Genes, Plant ; Genotype ; Host Microbial Interactions/genetics ; Mycorrhizae/growth & development ; Plant Roots/metabolism ; Plant Roots/microbiology ; Scopoletin/metabolism ; Signal Transduction
    Chemical Substances Scopoletin (KLF1HS0SXJ)
    Language English
    Publishing date 2021-04-06
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 778032-1
    ISSN 1573-5028 ; 0167-4412
    ISSN (online) 1573-5028
    ISSN 0167-4412
    DOI 10.1007/s11103-021-01143-x
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3458: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  9. Article ; Online: Mycelium chemistry differs markedly between ectomycorrhizal and arbuscular mycorrhizal fungi.

    Huang, Weilin / van Bodegom, Peter M / Declerck, Stéphane / Heinonsalo, Jussi / Cosme, Marco / Viskari, Toni / Liski, Jari / Soudzilovskaia, Nadejda A

    Communications biology

    2022  Volume 5, Issue 1, Page(s) 398

    Abstract: The chemical quality of soil carbon (C) inputs is a major factor controlling litter decomposition and soil C dynamics. Mycorrhizal fungi constitute one of the dominant pools of soil microbial C, while their litter quality (chemical proxies of litter ... ...

    Abstract The chemical quality of soil carbon (C) inputs is a major factor controlling litter decomposition and soil C dynamics. Mycorrhizal fungi constitute one of the dominant pools of soil microbial C, while their litter quality (chemical proxies of litter decomposability) is understood poorly, leading to major uncertainties in estimating soil C dynamics. We examined litter decomposability of arbuscular mycorrhizal (AM) and ectomycorrhizal (EM) fungal species using samples obtained from in vitro cultivation. We showed that the chemical composition of AM and EM fungal mycelium differs significantly: EM fungi have higher concentrations of labile (water-soluble, ethanol-soluble) and recalcitrant (non-extractable) chemical components, while AM fungi have higher concentrations of acid-hydrolysable components. Our results imply that differences in decomposability traits among mycorrhizal fungal guilds represent a critically important driver of the soil C cycle, which could be as vital as is recognized for differences among aboveground plant litter.
    MeSH term(s) Carbon ; Mycelium ; Mycorrhizae ; Plants/microbiology ; Soil/chemistry
    Chemical Substances Soil ; Carbon (7440-44-0)
    Language English
    Publishing date 2022-04-28
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2399-3642
    ISSN (online) 2399-3642
    DOI 10.1038/s42003-022-03341-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Model-checking ecological state-transition graphs.

    Thomas, Colin / Cosme, Maximilien / Gaucherel, Cédric / Pommereau, Franck

    PLoS computational biology

    2022  Volume 18, Issue 6, Page(s) e1009657

    Abstract: ... In discussion, we sketch bridges between existing studies in ecology and available model-checking frameworks ...

    Abstract Model-checking is a methodology developed in computer science to automatically assess the dynamics of discrete systems, by checking if a system modelled as a state-transition graph satisfies a dynamical property written as a temporal logic formula. The dynamics of ecosystems have been drawn as state-transition graphs for more than a century, ranging from state-and-transition models to assembly graphs. Model-checking can provide insights into both empirical data and theoretical models, as long as they sum up into state-transition graphs. While model-checking proved to be a valuable tool in systems biology, it remains largely underused in ecology apart from precursory applications. This article proposes to address this situation, through an inventory of existing ecological STGs and an accessible presentation of the model-checking methodology. This overview is illustrated by the application of model-checking to assess the dynamics of a vegetation pathways model. We select management scenarios by model-checking Computation Tree Logic formulas representing management goals and built from a proposed catalogue of patterns. In discussion, we sketch bridges between existing studies in ecology and available model-checking frameworks. In addition to the automated analysis of ecological state-transition graphs, we believe that defining ecological concepts with temporal logics could help clarify and compare them.
    MeSH term(s) Ecosystem ; Logic ; Models, Theoretical ; Systems Biology
    Language English
    Publishing date 2022-06-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2193340-6
    ISSN 1553-7358 ; 1553-734X
    ISSN (online) 1553-7358
    ISSN 1553-734X
    DOI 10.1371/journal.pcbi.1009657
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