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Pinus sylvestris

ABSTRACT: Wounding response in young Scots pine stems

PROVIDER: PRJNA631777 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11791362_1.fastq.gz	Fastqsanger.gz
	SRR11791362_2.fastq.gz	Fastqsanger.gz
	SRR11791363_1.fastq.gz	Fastqsanger.gz
	SRR11791363_2.fastq.gz	Fastqsanger.gz
	SRR11791364_1.fastq.gz	Fastqsanger.gz

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Transcript profiling of Pinus sylvestris trees as a response to Heterobasidion annosum infection under field conditions

Project description:In conifer forests of Northern Europe, a pathogenic fungus Heterobasidion annosum attacks the roots of Scots pine and causes mortality. Trees with infection grow slower and produce less timber with reduced quality. Despite applied control methods, such as switching tree species to a non-host species, or stump treatment, root and butt rot continues to be a serious forest health problem. Disease resistance breeding is a less-applied control method which has potential to improve tree health. However, neither conifer genotypes with absolute resistance to Heterobasidion sp. nor robust selection markers for resistance breeding have been found. We studied the responses of various Scots pine genotypes to Heterobasidion annosum infection and mechanic damage in drained peatland. Stems and roots of mature naturally regenerated Scots pine trees growing in drained peatland were either artificially infected with H. annosum or wounded and inoculated with sterile inoculum. Untreated trees from the study sites served as controls. Responses of different Scots pine genotypes to pathogen infection as determined by lesion size were recorded from samples harvested four months after inoculation, and least susceptible and highly susceptible genotypes were selected from the study material. Analysis of terpenoids from both least susceptible and highly susceptible pine genotypes by gas chromatography coupled with mass spectrometry indicates that some monoterpenes and sesquiterpenes are differentially induced depending on the susceptibility level. Transcriptomic microarray analysis was therefore conducted with RNA from stems of the least susceptible and highly susceptible Scots pine genotypes. Gene expression data from cDNA microarray were analysed by comparisons between the treatments, and the genotypes with different resistance level. The aim of the study is to highlight transcripts specific to differing levels of susceptibility.

2019-02-01 | GSE66168 | GEO

Scots pine (Pinus sylvestris) differentially interacts with Cenococcum geophilum and other simultaneously inoculated mycorrhizal (ECM) fungi

2016-08-01 | GSE80549 | GEO

Scots pine (Pinus sylvestris) differentially interacts with Cenococcum geophilum and other simultaneously inoculated mycorrhizal (ECM) fungi

Project description:To identify specific gene networks induced in host roots by C. geophilum, we inoculated seedlings of Scots pine simultaneously with C. geophilum and either Suillus granulatus or Rhizopogon roseolus, two common ECM fungi associated to pines. We then measured the differential expression of Scots pine genes in the respective mycorrhizas using oligoarrays. We performed 14 hybridizations (NimbleGen) with samples derived from Pinus sylvestris mycorrhiza with Cenococcum geophilum, Rhizopogon roseolus or Suillus granulatus (3 biological replicates each), as well as from non-mycorrhizal control roots (two replicates). Only the Pinus-derived sequences from the array were considered for this analysis. All samples were labeled with Cy3.

2016-08-01 | E-GEOD-80549 | biostudies-arrayexpress

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Project description:UV-C and CHX response in Scots pine needles of 6-week old seedlings

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Project description:Activation of defense pathways in Scots pine bark after feeding by Pine Weevil (Hylobius abietis)

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Project description:Transcriptional response of Scots pine trees to Heterobasidion annosum infection: analyses of antimicrobial protein Sp-AMP2

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Project description:Comparative transcriptome analysis of early interaction events in Scots pine root tissues following challenge (1dpi)

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Comparative transcript profiling of interaction events in Pinus sylvestris root tissues following challenge (5dpi).

Project description:The response mechanisms, recognition and specificity of conifer trees during interaction with pathogenic, saprotrophic or symbiotic ectomycorrhizal fungus were investigated. The roots of Pinus sylvestris were challenged for five days with either Heterobasidion annosum (a pathogenic root rot fungus which attacks Norway spruce, Scots pine and broad leaf trees); Laccaria bicolor (an obligate ectomycorrhizal symbiont); or Trichoderma aureoviride (an obligate saprotroph). The gene expression data from cDNA micro-arrays consisting of 2176 Pinus taeda genes were analysed using 2-interconnected mixed linear model statistical approach. The result of the pairwise comparisons of the different treatments against un-inoculated control led to identification of genes specifically differentially expressed in the pathogenic, saprotrophic and symbiotic interactions. The results were compared with similar data obtained for two other interaction stages: 1 and 15 days post inoculation. The result of this comprehensive expression profiling will hopefully shed more light on the mechanistic basis for recognition and response of conifer trees to pathogenic and non-pathogenic fungi. Keywords: stress response

2006-07-31 | GSE5408 | GEO

Comparative transcript profiling of interaction events in Pinus sylvestris root tissues following challenge (15dpi).

Project description:The response mechanisms, recognition and specificity of conifer trees during interaction with pathogenic, saprotrophic or symbiotic ectomycorrhizal fungus were investigated. The roots of Pinus sylvestris were challenged for fifteen days with either Heterobasidion annosum (a pathogenic root rot fungus which attacks Norway spruce, Scots pine and broad leaf trees); Laccaria bicolor (an obligate ectomycorrhizal symbiont); or Trichoderma aureoviride (an obligate saprotroph). The gene expression data from cDNA micro-arrays consisting of 2176 Pinus taeda genes were analysed using 2-interconnected mixed linear model statistical approach. The result of the pairwise comparisons of the different treatments against un-inoculated control led to identification of genes specifically differentially expressed in the pathogenic, saprotrophic and symbiotic interactions. The results were compared with similar data obtained for two other interaction stages: 1 and 5 days post inoculation. The result of this comprehensive expression profiling will hopefully shed more light on the mechanistic basis for recognition and response of conifer trees to pathogenic and non-pathogenic fungi. Keywords: stress response

2006-07-31 | GSE5407 | GEO

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Project description:Scots pine (Pinus sylvestris) differentially interacts with Cenococcum geophilum and other simultaneously inoculated mycorrhizal (ECM) fungi

| PRJNA319254 | ENA

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