Origins of the mycorrhizal symbioses

Strullu‐Derrien, Christine; Kenrick, Paul; Selosse, Marc‐André

doi:10.1002/9781118951446.ch1

Cited by 10 publications

(7 citation statements)

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“…AMF from the phylum Mucoromycota, subphylum Glomeromycotina, establish the most common arbuscular mycorrhiza (AM) with the roots of 72% of vascular plants (Bonfante 2018). AM is characterized by the presence of arbuscules inside root cortical cells (Strullu-Derrien et al 2017). Arbuscules are the site of nutrient exchange from the AMF to the host.…”

Section: •àmentioning

confidence: 99%

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Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

2020

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With continued climate changes, soil drought stress has become the main limiting factor for crop growth in arid and semi-arid regions. A typical characteristic of drought stress is the burst of reactive oxygen species (ROS), causing oxidative damage. Plant-associated microbes, such as arbuscular mycorrhizal fungi (AMF), can regulate physiological and molecular responses to tolerate drought stress, and they have a strong ability to cope with drought-induced oxidative damage via enhanced antioxidant defence systems. AMF produce a limited oxidative burst in the arbuscule-containing root cortical cells. Similar to plants, AMF modulate a fungal network in enzymatic (e.g. GmarCuZnSOD and GintSOD1) and non-enzymatic (e.g. GintMT1, GinPDX1 and GintGRX1) antioxidant defence systems to scavenge ROS. Plants also respond to mycorrhization to enhance stress tolerance via metabolites and the induction of genes. The present review provides an overview of the network of plant À arbuscular mycorrhizal fungus dialogue in mitigating oxidative stress. Future studies should involve identifying genes and transcription factors from both AMF and host plants in response to drought stress, and utilize transcriptomics, proteomics and metabolomics to clarify a clear dialogue mechanism between plants and AMF in mitigating oxidative burst.

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Section: •àmentioning

confidence: 99%

“…AM is characterized by the presence of arbuscules inside root cortical cells (Strullu‐Derrien et al . 2017). Arbuscules are the site of nutrient exchange from the AMF to the host.…”

Section: Introductionmentioning

confidence: 99%

Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

2020

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“…intercellular system in the basal part of the plant and forms intracellular coils. This discovery suggests that not only Glomeromycotina but also Mucoromycotina entered into mutualistic relationships with land plants in the Rhynie ecosystem (see [72][73][74]). Evidence of fungal interactions with land plants in the Rhynie chert also occurs in the form of micrometre-sized spheroidal, obpyriform or clavate vesicles, some with one or several pores or papillae in the wall, that are attached to the outer surface of land plant spores.…”

Section: (I) Fungi -Land Plantsmentioning

confidence: 99%

“…Finally, Strullu-Derrien et al [71] report on two different fungi in the land plant Horneophyton lignieri. Palaeoglomus boullardii, a member of the Glomeromycotina, occurs in the upright axes within a discontinuous zone of the outer cortex where it forms vesicles, spores and arbuscule-like structures, while Palaeoendogone gwynne-vaughaniae, believed to belong to the Mucoromycotina, is present in the cortex [72][73][74]). Evidence of fungal interactions with land plants in the Rhynie chert also occurs in the form of micrometre-sized spheroidal, obpyriform or clavate vesicles, some with one or several pores or papillae in the wall, that are attached to the outer surface of land plant spores.…”

Section: (I) Fungi -Land Plantsmentioning

confidence: 99%

Fungi and fungal interactions in the Rhynie chert: a review of the evidence, with the description ofPerexiflasca taylorianagen. et sp. nov.^†

Krings

Harper

Taylor

2017

Phil. Trans. R. Soc. B

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The Lower Devonian Rhynie chert is one of the most important rock deposits yielding comprehensive information on early continental plant, animal and microbial life. Fungi are especially abundant among the microbial remains, and include representatives of all major fungal lineages except Basidiomycota. This paper surveys the evidence assembled to date of fungal hyphae, mycelial cords and reproductive units (e.g. spores, sporangia, sporocarps), and presents examples of fungal associations and interactions with land plants, other fungi, algae, cyanobacteria and animals from the Rhynie chert. Moreover, a small, chytrid-like organism that occurs singly, in chain-like, linear arrangements, planar assemblages and three-dimensional aggregates of less than 10 to [Formula: see text] individuals in degrading land plant tissue in the Rhynie chert is formally described, and the name proposed for the organism. probably colonized senescent or atrophied plant parts and participated in the process of biological degradation. The fungal fossils described to date from the Rhynie chert constitute the largest body of structurally preserved evidence of fungi and fungal interactions from any rock deposit, and strongly suggest that fungi played important roles in the functioning of the Early Devonian Rhynie ecosystem.This article is part of a discussion meeting issue 'The Rhynie cherts: our earliest terrestrial ecosystem revisited'.

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“…Recent articles or reviews of the origin and evolution of mycorrhizal symbioses have focused on genomics of CMm and AM (Rimington et al ., ; Delaux, ; Kamel et al ., ) and ECM (Martin et al ., , ), evolution and ecology (van der Heijden et al ., ) and responses of AM and CMm to environmental changes (Field et al ., , ). Here, we explore the potential for dialogue between the fossil record, phylogenetics and genomics, which are complementary ways of seeing into the past (Selosse et al ., ; Strullu‐Derrien et al ., 2016b; Berbee et al ., ).…”

Section: Introductionmentioning

confidence: 99%

The origin and evolution of mycorrhizal symbioses: from palaeomycology to phylogenomics

et al. 2018

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Contents Summary 1012 I. Introduction 1013 II. The mycorrhizal symbiosis at the dawn and rise of the land flora 1014 III. From early land plants to early trees: the origin of roots and true mycorrhizas 1016 IV. The diversification of the AM symbiosis 1019 V. The ECM symbiosis 1021 VI. The recently evolved ericoid and orchid mycorrhizas 1023 VII. Limits of paleontological vs genetic approaches and perspectives 1023 Acknowledgements 1025 References 1025 SUMMARY: The ability of fungi to form mycorrhizas with plants is one of the most remarkable and enduring adaptations to life on land. The occurrence of mycorrhizas is now well established in c. 85% of extant plants, yet the geological record of these associations is sparse. Fossils preserved under exceptional conditions provide tantalizing glimpses into the evolutionary history of mycorrhizas, showing the extent of their occurrence and aspects of their evolution in extinct plants. The fossil record has important roles to play in establishing a chronology of when key fungal associations evolved and in understanding their importance in ecosystems through time. Together with calibrated phylogenetic trees, these approaches extend our understanding of when and how groups evolved in the context of major environmental change on a global scale. Phylogenomics furthers this understanding into the evolution of different types of mycorrhizal associations, and genomic studies of both plants and fungi are shedding light on how the complex set of symbiotic traits evolved. Here we present a review of the main phases of the evolution of mycorrhizal interactions from palaeontological, phylogenetic and genomic perspectives, with the aim of highlighting the potential of fossil material and a geological perspective in a cross-disciplinary approach.

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Origins of the mycorrhizal symbioses

Cited by 10 publications

References 84 publications

Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

Fungi and fungal interactions in the Rhynie chert: a review of the evidence, with the description ofPerexiflasca taylorianagen. et sp. nov.^†

The origin and evolution of mycorrhizal symbioses: from palaeomycology to phylogenomics

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Origins of the mycorrhizal symbioses

Cited by 10 publications

References 84 publications

Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

Unravelling the role of arbuscular mycorrhizal fungi in mitigating the oxidative burst of plants under drought stress

Fungi and fungal interactions in the Rhynie chert: a review of the evidence, with the description ofPerexiflasca taylorianagen. et sp. nov.†

The origin and evolution of mycorrhizal symbioses: from palaeomycology to phylogenomics

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Fungi and fungal interactions in the Rhynie chert: a review of the evidence, with the description ofPerexiflasca taylorianagen. et sp. nov.^†