Microbiome of Norway spruce
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB21787 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR2034620_1.fastq.gz | Fastqsanger.gz | |||
| ERR2034620_2.fastq.gz | Fastqsanger.gz | |||
| ERR2034630_1.fastq.gz | Fastqsanger.gz | |||
| ERR2034630_2.fastq.gz | Fastqsanger.gz | |||
| ERR2034640_1.fastq.gz | Fastqsanger.gz |
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Project description:We investigated root associated fungi in young Norway spruce (Picea abies) cuttings rooted from slow- and fast-growing trees showing variable growth rate in long-term field experiments and compared their roots’ gene expression patterns five and 18 months after adventitious root initiation. Gene expression patterns of adventitious roots could not be systematically linked with the growth phenotype at the initiation of root formation, and thus fundamental differences in the receptiveness of fungal symbionts could not be assumed.
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Project description:Bisulfite treatment libraries were made to characterize DNA methylation of Norway spruce
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Project description:An attractive objective in the breeding of forest trees is to reduce the content of lignin or alter the lignin composition. However, for long-lived forest trees, such as conifers, it is time consuming and expensive to wait until mature wood is formed for estimating how different ligninfication genes affect cell wall differentiation. The aim of this work was to examine the possibility of detecting changes in global gene expression and of genes involved in lignin biosynthesis already in embryogenic cultures carrying the native Norway spruce cinnamoyl CoA reductase (CCR) gene in antisense orientation. Several genes, including genes regulating phenylalanine ammonia-lyase and peroxidase, regulating different pathways associated with lignin biosynthesis were affected but the transcript abundances of genes regulating lignin biosynthesis were not affected. Functional assignment defined by Gene Ontology terms, which provide functional classification for genes and gene products representing their corresponding biological process, cellular component and molecular function showed that transformation with asCCR affects a broad spectrum of functional categories, especially processes taking place in the cell wall. Furthermore, many changes in genes related to chromatin, DNA and chromosome take place. Keywords: transgenic Norway spruce, embryogenic culture
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Project description:Monolignol transport during lignification is a partially solved puzzle: both the mechanism(s) and the transported form of monolignols are unknown in developing xylem of trees. We tested a hypothesis of an active, plasma membrane (PM)-localized transport of monolignol monomers, dimers, and/or glucosidic forms with membrane vesicles prepared of developing xylem, phloem, and lignin-forming, tissue-cultured cells of Norway spruce (Picea abies L. Karst.), as well as of a control material, non-lignifying tobacco (Nicotiana tabacum L.) BY-2 cells. Xylem and BY-2 vesicles transported both coniferin and p-coumaryl alcohol glucoside, but inhibitor assays suggested this transport being over the tonoplast. Based on similar inhibitor assays, lignin-forming, tissue42 cultured cells of spruce had coniferin transport putatively localizing on PM. Liquid chromatography-mass spectrometry (LC-MS/MS) analysis of membrane proteins isolated from spruce developing xylem, phloem and tissue-cultured cells revealed multiple transporters. These were compared to a transporter gene set that was gained by a correlation analysis with a selected set of spruce monolignol biosynthesis genes. Biochemical membrane vesicle assays showed no support for the ABC-transporter-mediated monolignol transport but point to secondary active transporters (such as MFS- or MATE-transporters). In contrast, proteomic and co-expression analyses suggest a role for ABC-transporters and MFS-transporters.
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Project description:Foliar fungal communities of Norway spruce in a tree species diversity gradient in mature European forests
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Project description:In order to test Norway spruce radiosensitivity to gamma radiation, 6 days old seedlings were exposed for 48 h to 60-Co source at dose rates 1, 10, 40 or 100 mGy/h.
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