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Identification of putative anthocyanin transporters in Petunia hybrida
Christina Paparokidou, 2013, končno poročilo o rezultatih raziskav

Ključne besede: knock out transposon-generated mutants, dTPH1 transposable element, MATE family, MRP transporters, RT-PCR, confocal microscopy.
Objavljeno v RUNG: 03.05.2022; Ogledov: 1709; Prenosov: 0
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3.
Phosphate availability and ectomycorrhizal symbiosis with Pinus sylvestris have independent effects on the Paxillus involutus transcriptome
Christina Paparokidou, Jonathan R. Leake, David J. Beerling, Stephen A. Rolfe, 2021, izvirni znanstveni članek

Opis: Many plant species form symbioses with ectomycorrhizal fungi, which help them forage for limiting nutrients in the soil such as inorganic phosphate (Pi). The transcriptional responses to symbiosis and nutrient-limiting conditions in ectomycorrhizal fungal hyphae, however, are largely unknown. An artificial system was developed to study ectomycorrhizal basidiomycete Paxillus involutus growth in symbiosis with its host tree Pinus sylvestris at different Pi concentrations. RNA-seq analysis was performed on P. involutus hyphae growing under Pi-limiting conditions, either in symbiosis or alone. We show that Pi starvation and ectomycorrhizal symbiosis have an independent effect on the P. involutus transcriptome. Notably, low Pi availability induces expression of newly identified putative high-affinity Pi transporter genes, while reducing the expression of putative organic acid transporters. Additionally, low Pi availability induces a close transcriptional interplay between P and N metabolism. GTP-related signalling was found to have a positive effect in the maintenance of ectomycorrhizal symbiosis, whereas multiple putative cytochrome P450 genes were found to be downregulated, unlike arbuscular mycorrhizal fungi. We provide the first evidence of global transcriptional changes induced by low Pi availability and ectomycorrhizal symbiosis in the hyphae of P. involutus, revealing both similarities and differences with better-characterized arbuscular mycorrhizal fungi.
Ključne besede: Ectomycorrhizal symbiosis, Paxillus involutus, Pi transporters, Pi-starvation, Pinus sylvestris, RNA-seq.
Objavljeno v RUNG: 03.05.2022; Ogledov: 1632; Prenosov: 0
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