ArticleThe New phytologist2021
VAPYRIN attenuates defence by repressing PR gene induction and localized lignin accumulation during arbuscular mycorrhizal symbiosis of Petunia hybrida.
Article in The New phytologist, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed.
- Review
- Autoactive MtDMI1 Reprogrammes Immunity and Development in Tomato via Ethylene Signalling.Plant biotechnology journal · 2026Article
- Rhizophagus Irregularis regulates flavonoids metabolism in paper mulberry roots under cadmium stress.Mycorrhiza · 2024Article
- IPD3, a master regulator of arbuscular mycorrhizal symbiosis, affects genes for immunity and metabolism of non-host Arabidopsis when restored long after its evolutionary loss.Plant molecular biology · 2024Article
- Clearing of Vascular Tissue in Arabidopsis thaliana for Reporter Analysis of Gene Expression.Methods in molecular biology (Clifton, N.J.) · 2024Article
- LysM receptor-like kinases involved in immunity perceive lipo-chitooligosaccharides in mycotrophic plants.Plant physiology · 2023Article
- Re-engineering a lost trait:bioRxiv : the preprint server for biology · 2023Article
- Callose metabolism and the regulation of cell walls and plasmodesmata during plant mutualistic and pathogenic interactions.Plant, cell & environment · 2023Review
- Distinct ankyrin repeat subdomains control VAPYRIN locations and intracellular accommodation functions during arbuscular mycorrhizal symbiosis.Nature communications · 2022Article
- Symbiotic responses of Lotus japonicus to two isogenic lines of a mycorrhizal fungus differing in the presence/absence of an endobacterium.The Plant journal : for cell and molecular biology · 2021Article
- ClearSeeAlpha: Advanced Optical Clearing for Whole-Plant Imaging.Plant & cell physiology · 2021Article
- Phosphate Suppression of Arbuscular Mycorrhizal Symbiosis Involves Gibberellic Acid Signaling.Plant & cell physiology · 2021Article
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7 authors.
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Abstract
The intimate association of host and fungus in arbuscular mycorrhizal (AM) symbiosis can potentially trigger induction of host defence mechanisms against the fungus, implying that successful symbiosis requires suppression of defence. We addressed this phenomenon by using AM-defective vapyrin (vpy) mutants in Petunia hybrida, including a new allele (vpy-3) with a transposon insertion close to the ATG start codon. We explore whether abortion of fungal infection in vpy mutants is associated with the induction of defence markers, such as cell wall alterations, accumulation of reactive oxygen species (ROS), defence hormones and induction of pathogenesis-related (PR) genes. We show that vpy mutants exhibit a strong resistance against intracellular colonization, which is associated with the generation of cell wall appositions (papillae) with lignin impregnation at fungal entry sites, while no accumulation of defence hormones, ROS or callose was observed. Systematic analysis of PR gene expression revealed that several PR genes are induced in mycorrhizal roots of the wild-type, and even more in vpy plants. Some PR genes are induced exclusively in vpy mutants. Our results suggest that VPY is involved in avoiding or suppressing the induction of a cellular defence syndrome that involves localized lignin deposition and PR gene induction.
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