Methylome changes in Lolium perenne associated with long-term colonisation by the endophytic fungus Epichloë sp. LpTG-3 strain AR37

Forte, Flavia Pilar; Malinowska, Marta; Nagy, Istvan; Schmid, Jan; Dijkwel, Paul; Hume, David E.; Johnson, Richard D.; Simpson, Wayne R.; Asp, Torben

doi:10.3389/fpls.2023.1258100

Cited by 2 publications

(2 citation statements)

References 78 publications

(125 reference statements)

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“…The transgenerational transmission of stress tolerance is associated with specific epigenetic regulations. Forte et al., 2023 recently evidenced that Epichloë infection triggers specific modifications of Lolium perenne DNA methylation. Whether it participates to the maintenance of stress tolerance in seeds over generation is currently unknown but provides a new angle to tackle seed-borne endophytic fungi functions.…”

Section: Seed-borne Endophytic Fungi: a High Potential To Improve See...mentioning

confidence: 99%

Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

Rétif,

Kunz,

Calabro

et al. 2023

Front. Plant Sci.

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Seed germination is a major determinant of plant development and final yield establishment but strongly reliant on the plant’s abiotic and biotic environment. In the context of global climate change, classical approaches to improve seed germination under challenging environments through selection and use of synthetic pesticides reached their limits. A currently underexplored way is to exploit the beneficial impact of the microorganisms associated with plants. Among plant microbiota, endophytes, which are micro-organisms living inside host plant tissues without causing any visible symptoms, are promising candidates for improving plant fitness. They possibly establish a mutualistic relationship with their host, leading to enhanced plant yield and improved tolerance to abiotic threats and pathogen attacks. The current view is that such beneficial association relies on chemical mediations using the large variety of molecules produced by endophytes. In contrast to leaf and root endophytes, seed-borne fungal endophytes have been poorly studied although they constitute the early-life plant microbiota. Moreover, seed-borne fungal microbiota and its metabolites appear as a pertinent lever for seed quality improvement. This review summarizes the recent advances in the identification of seed fungal endophytes and metabolites and their benefits for seed biology, especially under stress. It also addresses the mechanisms underlying fungal effects on seed physiology and their potential use to improve crop seed performance.’

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Section: Seed-borne Endophytic Fungi: a High Potential To Improve See...mentioning

confidence: 99%

Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

Rétif,

Kunz,

Calabro

et al. 2023

Front. Plant Sci.

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“…Research by Forte et al on the mutualistic interaction between Epichloë sp. LpTG-3 strain AR37 and L. perenne showed that the presence of the endophyte led to a decrease in DNA methylation across genomic features in the host, with differentially methylated regions primarily located in intergenic regions and CHH contexts [ 160 ]. Etemadi et al investigated the role of miR393, targeting several auxin receptors, during the colonization of Solanum lycopersicum , M. truncatula and O. sativa roots by arbuscular mycorrhizas.…”

Section: Introductionmentioning

confidence: 99%

Epigenetic weapons of plants against fungal pathogens

Mierziak,

Wojtasik

2024

BMC Plant Biol

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In the natural environment, plants face constant exposure to biotic stress caused by fungal attacks. The plant’s response to various biotic stresses relies heavily on its ability to rapidly adjust the transcriptome. External signals are transmitted to the nucleus, leading to activation of transcription factors that subsequently enhance the expression of specific defense-related genes. Epigenetic mechanisms, including histone modifications and DNA methylation, which are closely linked to chromatin states, regulate gene expression associated with defense against biotic stress. Additionally, chromatin remodelers and non-coding RNA play a significant role in plant defense against stressors. These molecular modifications enable plants to exhibit enhanced resistance and productivity under diverse environmental conditions. Epigenetic mechanisms also contribute to stress-induced environmental epigenetic memory and priming in plants, enabling them to recall past molecular experiences and utilize this stored information for adaptation to new conditions. In the arms race between fungi and plants, a significant aspect is the cross-kingdom RNAi mechanism, whereby sRNAs can traverse organismal boundaries. Fungi utilize sRNA as an effector molecule to silence plant resistance genes, while plants transport sRNA, primarily through extracellular vesicles, to pathogens in order to suppress virulence-related genes. In this review, we summarize contemporary knowledge on epigenetic mechanisms of plant defense against attack by pathogenic fungi. The role of epigenetic mechanisms during plant-fungus symbiotic interactions is also considered.

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Methylome changes in Lolium perenne associated with long-term colonisation by the endophytic fungus Epichloë sp. LpTG-3 strain AR37

Cited by 2 publications

References 78 publications

Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

Epigenetic weapons of plants against fungal pathogens

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