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Transcriptome-wide analysis of active xylem in White Spruce and Norway Spruce during the growth season

ABSTRACT: The goal is to look at changes in the pattern of expression of the xylem transcriptome through the growth season in two spruces (Picea glauca and Picea abies).

ORGANISM(S): Picea glauca Picea abies Picea sitchensis

PROVIDER: GSE51884 | GEO | 2015/01/21

SECONDARY ACCESSION(S): PRJNA225674

REPOSITORIES: GEO

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Transcriptome-wide analysis of active xylem in White Spruce and Norway Spruce during the growth season

Project description:The goal is to look at changes in the pattern of expression of the xylem transcriptome through the growth season in two spruces (Picea glauca and Picea abies). One-color comparison of active xylem collected in June, July, August and September, in two spruce species. Six biological repetitions per time point and specie, for a total of 48 slides.

2015-01-21 | E-GEOD-51884 | biostudies-arrayexpress

Profiling of small RNA in Norway spruce embryonic calli and male gametophytes

Project description:Transcriptome analysis of small RNA was performed using pollen and embryonic callus, and vegetative tissues, needles of Picea abies to address differences in small RNA profiles between reproductive tissues and vegetative tissues in gymnosperm.

2019-12-21 | GSE129413 | GEO

Profiling of histone modification H3K27me3 in Norway spruce embryonic calli and non-embryonic calli

Project description:Histone modification H3K27me3 profilings by the CUT&RUN method (Skene et al., 2017) were performed using embryonic callus and non-embryonic callus of Picea abies to identify genes related to somatic embryogenesis capacity.

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Fine root gene expression of Norway spruce cuttings

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.

2023-11-02 | GSE246281 | GEO

A common graft formation pathway in Norway spruce and Arabidopsis thaliana identifies the PAT gene family as conserved regulators of tissue attachment and wound healing [RNAseq: Grafted-samples]

Project description:The widespread use of plant grafting has enabled different plants to join and combine their best properties to improve stress tolerance, growth and yields. Grafting is commonly performed between closely related eudicots or gymnosperms where mechanisms permit tissue fusion yet limit success as plants become unrelated. To investigate these aspects, we developed a micrografting method using young conifer tree seedlings that enabled divergent conifer members to successfully graft. Conifer grafts showed rapid connection of phloem and xylem at the junction, while a genome-wide transcriptome analysis of the Picea abies (Norway spruce) healing junction revealed differential expression of thousands of genes including those related to auxin response and cell wall biogenesis. We compared these genes to those induced during Arabidopsis thaliana graft healing and found a common activation of cambium, cell division, phloem and xylem-related genes. A gene regulatory network analysis revealed that PHYTOCHROME A SIGNAL TRANSDUCTION 1 (PAT1) acted as a central hub during Picea grafting and was also induced during Arabidopsis grafting. Arabidopsis mutants lacking PATs failed to attach tissues or successfully graft, while complementing Arabidopsis PAT mutants with the Picea abies PAT1 homolog could rescue tissue attachment and enhance callus formation. Together, our data demonstrate a competency for young tissues to graft to distantly related species and identifies the PAT gene family as conserved regulators of graft healing and tissue regeneration in eudicots and gymnosperms.

2023-10-01 | GSE231631 | GEO

A common graft formation pathway in Norway spruce and Arabidopsis thaliana identifies the PAT gene family as conserved regulators of tissue attachment and wound healing [RNAseq: Hornome-Treatment-samples]

2023-10-01 | GSE231632 | GEO

Hunting monolignol transporter(s): membrane proteomics and biochemical transport assays with membrane vesicles of Norway spruce

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.

2020-08-14 | PXD017533 | Pride

Transcriptome-wide analysis of active xylem in White Spruce and Norway Spruce during the growth season

Project description:Transcriptome-wide analysis of active xylem in White Spruce and Norway Spruce during the growth season

| PRJNA225674 | ENA

Evaluation of differential expression in the vascular transcriptome among Picea species

Project description:The goal of this experiment is to assess tissue preferential transcript accumulation and fold difference between two tissues that support secondary vascular growth in three spruces: Picea glauca, Picea sitchensis and Picea mariana. Tissues compared are secondary xylem (wood forming tissue located on the internal side of the cambial meristem) and phelloderm (composite sample of the phloem and phelloderm tissues located on the outer side of the cambial meristem). One-color comparison of 3 spruce species in 2 tissue types: xylem and phelloderm. 20 biological repetitions per tissue for Picea glauca and 15 for Picea sitchensis and Picea mariana, for a total of 100 slides.

2012-02-18 | E-GEOD-35922 | biostudies-arrayexpress

Thylakoids of Picea abies - The unique photosynthetic apparatus of Pinaceae - Analysis of photosynthetic complexes in Norway spruce (Piceaabies)

Project description:Analysis of the subunits composition of the thylakoids protein complexes in Picea abies (Norway spruce) by means of two-dimensional large-pore Blue-Native/sodium dodecyl sulfate-polyacrylamide gel electrophoresis (2D lpBN/SDS-PAGE) and in-gel tryptic digestion of single spots.

2019-04-02 | PXD010071 | Pride

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