Peroxisomes are small,highly dynamic,and multifunctional organelles in eukaryotes.Essential to plant survival,peroxisomes house various crucial metabolic activities,such as degradation of hydrogen peroxide(H2O2),lipid...Peroxisomes are small,highly dynamic,and multifunctional organelles in eukaryotes.Essential to plant survival,peroxisomes house various crucial metabolic activities,such as degradation of hydrogen peroxide(H2O2),lipid metabolism,photorespiration,and hormone biosynthesis and catabolism,and remodel their proteome in response to developmental and environmental changes(Hu et al.2012;Pan and Hu 2018).The four reviews and three research articles in this special issue on plant peroxisomes provide new insights into the diverse roles and dynamics of these structurally simple but functionally complicated organelles,raising exciting new questions for future investigations.展开更多
Organelles are eukaryotic subcellular structures each possessing a specific set of functions. The morphology, abundance, and content of the organelles also undergo constant changes for optimal function and for plant a...Organelles are eukaryotic subcellular structures each possessing a specific set of functions. The morphology, abundance, and content of the organelles also undergo constant changes for optimal function and for plant adaptation to environmental variation.展开更多
Dynaminrelated proteins （DRPs） are key components of the organelle division machineries, functioning as molecular scissors during the fission process. In Arabidopsis, DRP3A and DRP3B are shared by peroxisomal and mi...Dynaminrelated proteins （DRPs） are key components of the organelle division machineries, functioning as molecular scissors during the fission process. In Arabidopsis, DRP3A and DRP3B are shared by peroxisomal and mitochondrial division, whereas the structurallydistinct DRP5B （ARC5） protein is involved in the division of chloroplasts and peroxisomes. Here, we further investigated the roles of DRP3A, DRP3B, and DRP5B in organelle division and plant development. Despite DRP5B＇s lack of stable association with mitochondria, drp5B mutants show defects in mitochondrial division.展开更多
文摘Peroxisomes are small,highly dynamic,and multifunctional organelles in eukaryotes.Essential to plant survival,peroxisomes house various crucial metabolic activities,such as degradation of hydrogen peroxide(H2O2),lipid metabolism,photorespiration,and hormone biosynthesis and catabolism,and remodel their proteome in response to developmental and environmental changes(Hu et al.2012;Pan and Hu 2018).The four reviews and three research articles in this special issue on plant peroxisomes provide new insights into the diverse roles and dynamics of these structurally simple but functionally complicated organelles,raising exciting new questions for future investigations.
文摘Organelles are eukaryotic subcellular structures each possessing a specific set of functions. The morphology, abundance, and content of the organelles also undergo constant changes for optimal function and for plant adaptation to environmental variation.
基金supported by grants from the National Science Foundation Arabidopsis 2010 program (MCB 0618335)the Chemical Sciences,Geo sciences and Biosciences Division,Office of Basic Energy Sciences,Office of Science,U.S. Department of Energy (DE-FG02-91ER20021) to J.H
文摘Dynaminrelated proteins （DRPs） are key components of the organelle division machineries, functioning as molecular scissors during the fission process. In Arabidopsis, DRP3A and DRP3B are shared by peroxisomal and mitochondrial division, whereas the structurallydistinct DRP5B （ARC5） protein is involved in the division of chloroplasts and peroxisomes. Here, we further investigated the roles of DRP3A, DRP3B, and DRP5B in organelle division and plant development. Despite DRP5B＇s lack of stable association with mitochondria, drp5B mutants show defects in mitochondrial division.
