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Expression profiling of Arabidopsis wild type Col-0 and pmr5 mutant

ABSTRACT: The rosettes from genotype Col-0 and pmr5 mutant were collected for RNA expression profiling when the plants were 3 weeks old.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE39708 | GEO | 2012/09/01

SECONDARY ACCESSION(S): PRJNA171511

REPOSITORIES: GEO

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Expression profiling of Arabidopsis wild type Col-0 and pmr5 mutant

Project description:The rosettes from genotype Col-0 and pmr5 mutant were collected for RNA expression profiling when the plants were 3 weeks old. The rosettes were collected when the plants were 3 weeks old for RNA extraction and hybridization on Affymetrix microarrays.

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Bisulfite (methylome) sequencing of progenies of Col-0 grafted on msh1; Col-0 grafted on dcl2,3,4,msh1; Col-0 grafted on Col-0; msh1 mutant; dcl2,3,4,msh1 quadruple mutant in Arabidopsis [msh1_graft_BS-seq]

Project description:Col-0 floral stem was grafted on the msh1 mutant (Col-0/msh1); on the dcl2,3,4,msh1 quadruple mutant (Col-0/dcl2,3,4,msh1); on Col-0 (Col-0/Col-0). Seeds were collected from the grafted Col-0 scion after grafts were established. Seed coming from the graft then were grown on the peat mix, leaf tissue was collected at the bolting and used for the bisulfite sequencing (methylome). Tissue from the msh1 mutant and dcl2,3,4,msh1 quadruple mutants used as rootstocks was similarly collected at the bolting stage and used for the bisulfite sequencing.

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Arabidopsis dark-induced senescence: wild type (Col-0) vs. pif quadruple (pif1pif3pif4pif5) mutant

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During development, the Sku6 mutant roots engage different genes than wild type Col-0 roots, either on the ground or in spaceflight.

Project description:The wild type Col-0 plants and the Sku-6 mutant plants of the Col-0 background were germinated on ISS or on the ground and the gene expression profiles in roots at 4 days or 8 days were established. The Sku6 gene (At2g03680) codes for a protein that localizes to microtubule within the cortical array and putatively acting as an intramolecular linker. The development of Col-0 and Sku-6 plants on orbit differs from that on the ground as demonstrated by the comparison of the gene expression profiles between 4 days old to 8 days old plant in the two environments. However the development of Sku-6 mutant plants also differs from Col-0 at either age and in either environment, suggesting the role of the genetic background in these developmental decisions. The 4 days old Sku-6 roots in orbit engaged more genes than the 4 days old Col-0 roots in orbit but also more than the 4 days old Sku-6 roots on the ground. Overall the 4 days old roots differentially expressed more genes in spaceflight relative to ground than the 8 days old roots of either genotype.

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Project description:Microbe-associated molecular pattern (MAMP)-triggered immunity (MTI) is the first layer of molecular defense encountered by pathogens when they attempt to infect plants. MTI is dependent on cell surface pattern-recognition receptors (PRR) which act upstream of mitogen-activated protein kinase (MAPK) pathways. Genetic screening and mutant knock-out lines have largely contributed to our knowledge of MTI. However, genetic screening is confined to phenotype-causing mutations and scarcely enables the discovery of redundantly-acting proteins. We sought to discover protein components that contribute in MTI, using a phenotype-independent approach to discern nucleus-localized proteins after MTI induction. We report on the nuclear proteome of Columbia-0 (Col-0) and chitin elicitor receptor kinase 1 (cerk1) mutant plants 15 min after MTI induction. Our approach revealed that MAMP-treated cerk1 plants had many proteins in common with Col-0-treated plants following chitosan treatment. cerk1 plants also manifested several unique proteins that were absent from Col-0 plants when elicited with chitosan indicating that they also perceive chitosan. Detailed analysis of the identified proteins revealed a nuclear accumulation of transcriptional regulators and transcription factors, DNA-modifying enzymes, RNA-binding proteins and ribosomal proteins. No novel MAPKs were found although Receptor for activated C kinase 1, a scaffold protein involved in defense, and a nucleotide binding leucine-rich repeat protein, implicated in resistance to Leptosphaeria maculans, were discovered in the nucleus of chitosan-treated plants and absent from water-treated control plants.

2018-10-26 | PXD003821 | Pride

Root and rosette leaves transcriptome of Arabidopsis Col-0 and nrt1.5 mutant

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