Project description:Changes in leaf soluble proteome were explored in 3-month-old plants of Cu-tolerant (metallicolous, M) and sensitive (non-metallicolous, NM) Agrostis capillaris L. populations exposed to increasing Cu concentrations (1-50 µM). Aims of the study were to investigate (1) differential protein expression in NM and M leaves under increasing Cu exposure, and (2) molecular mechanisms underlying higher Cu tolerance in M plants. Plants were cultivated on perlite (CuSO4 spiked-nutrient solution); fresh leaf aliquots were frozen in liquid nitrogen. Soluble leaf proteins were extracted by the trichloroacetic acid/acetone procedure, and separated with 2-DE (linear 4-7 pH gradient). Analysis of CCB-stained gels (PDQuest) reproducibly detected 214 spots, of which 107 were analyzed using LC-MS/MS.
Project description:Identification of target transcripts for the putative chloroplast RNA binding protein CFM2 in Zea mays. CFM2 was immunoprecipitated from a chloroplast extract. Chloroplast extracts were prepared from WT tissue. RNA from the pellet and from the supernatant for each pulldown was labelled with different fluoro-dyes and hybridized onto an array covering the complete maize chloroplast genome. Messages enriched in the immunoprecipitate from WT tissue are likely targets for CFM2.
Project description:Identification of target transcripts for the putative chloroplast RNA binding protein CRP1 in Zea mays. CRP1 was immunoprecipitated from a chloroplast extract. Chloroplast extracts were prepared from WT and CRP1-deficient tissue. RNA from the pellet and from the supernatant for each pulldown was labelled with different fluoro-dyes and hybridized onto an array covering the complete maize chloroplast genome. Messages enriched in the immunoprecipitate from WT tissue, but not enriched in mutant tissue are likely targets for CRP1.