title: Immunolabeling of Nuclei/Chromosomes in Arabidopsis thaliana.
abstract: The cell cycle is a complex sequence of events by which cells grow and divide mitotically or meiotically. Mitosis results in the generation of two identical daughter cells, while meiosis generates gametes as a prerequisite for sexual reproduction. To study the localization and dynamics of proteins involved in the regulation and proceeding of the cell cycle, life cell imaging of proteins fused to fluorescent tags can be performed. However, in some cases this approach cannot be applied, e.g., due to low fluorescence intensity, fast bleaching or degradation of recombinant proteins by the proteasome pathway. Instead, immunolabeling with protein-specific antibodies represents a useful approach for the analysis of intact cells. Alternatively, immunolabeling can also be applied to isolated and/or flow-sorted nuclei of particular cell cycle stages (G1, S, and G2) or of different endopolyploidy levels. This chapter details indirect immunolabeling protocols to analyze the subcellular localization and distribution of cell cycle-specific proteins in Arabidopsis thaliana.
authors.affiliation: Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), OT Gatersleben, Corrensstrasse 3, 06466, Stadt Seeland, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Sandmann
authors.affiliation: Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), OT Gatersleben, Corrensstrasse 3, 06466, Stadt Seeland, Germany.
authors.forename: Joerg
authors.initials: J
authors.lastname: Fuchs
authors.affiliation: Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), OT Gatersleben, Corrensstrasse 3, 06466, Stadt Seeland, Germany. lermonto@ipk-gatersleben.de.
authors.forename: Inna
authors.initials: I
authors.lastname: Lermontova
mesh_terms: D017360:Arabidopsis / Q000737:chemistry / Q000166:cytology*; D029681:Arabidopsis Proteins / Q000032:analysis*; D002453:Cell Cycle; D018797:Cell Cycle Proteins / Q000032:analysis*; D002467:Cell Nucleus / Q000737:chemistry*; D007150:Immunohistochemistry / Q000379:methods*
chemical_list: D029681:Arabidopsis Proteins; D018797:Cell Cycle Proteins
keywords: A. thaliana; Chromosomes; Immunolabeling; Meiosis; Mitosis