title: Plant peroxisomes: recent discoveries in functional complexity, organelle homeostasis, and morphological dynamics.
abstract: Peroxisomes are essential for life in plants. These organelles house a variety of metabolic processes that generate and inactivate reactive oxygen species. Our knowledge of pathways and mechanisms that depend on peroxisomes and their constituent enzymes continues to grow, and in this review we highlight recent advances in understanding the identity and biological functions of peroxisomal enzymes and metabolic processes. We also review how peroxisomal matrix and membrane proteins enter the organelle from their sites of synthesis. Peroxisome homeostasis is regulated by specific degradation mechanisms, and we discuss the contributions of specialized autophagy and a peroxisomal protease to the degradation of entire peroxisomes and peroxisomal enzymes that are damaged or superfluous. Finally, we review how peroxisomes can flexibly change their morphology to facilitate inter-organellar contacts.
authors: Department of Plant Biochemistry and Infection Biology, Biocentre Klein Flottbek, University of Hamburg, D-22609 Hamburg, Germany; Centre for Organelle Research, Faculty of Science and Technology, University of Stavanger, N-4036 Stavanger, Norway.
authors: Sigrun
authors: S
authors: Reumann
authors: Department of BioSciences, Rice University, Houston, TX 77005, USA. Electronic address: bartel@rice.edu.
authors: Bonnie
authors: B
authors: Bartel
mesh_terms: D006706:Homeostasis / Q000502:physiology; D008565:Membrane Proteins / Q000378:metabolism; D020675:Peroxisomes / Q000378:metabolism*; D010944:Plants / Q000378:metabolism*; D017382:Reactive Oxygen Species / Q000378:metabolism
chemical_list: D008565:Membrane Proteins; D017382:Reactive Oxygen Species