The Experts below are selected from a list of 1282740 Experts worldwide ranked by ideXlab platform
Kenneth Keegstra - One of the best experts on this subject based on the ideXlab platform.
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biosynthesis of plant cell wall polysaccharides a Complex Process
Current Opinion in Plant Biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
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Biosynthesis of plant cell wall polysaccharides — a Complex Process
Current opinion in plant biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
Aaron H Liepman - One of the best experts on this subject based on the ideXlab platform.
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biosynthesis of plant cell wall polysaccharides a Complex Process
Current Opinion in Plant Biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
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Biosynthesis of plant cell wall polysaccharides — a Complex Process
Current opinion in plant biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
Olivier Lerouxel - One of the best experts on this subject based on the ideXlab platform.
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biosynthesis of plant cell wall polysaccharides a Complex Process
Current Opinion in Plant Biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
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Biosynthesis of plant cell wall polysaccharides — a Complex Process
Current opinion in plant biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
David Cavalier - One of the best experts on this subject based on the ideXlab platform.
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biosynthesis of plant cell wall polysaccharides a Complex Process
Current Opinion in Plant Biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
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Biosynthesis of plant cell wall polysaccharides — a Complex Process
Current opinion in plant biology, 2006Co-Authors: Olivier Lerouxel, David Cavalier, Aaron H Liepman, Kenneth KeegstraAbstract:Cellulose, a major component of plant cell walls, is made by dynamic Complexes that move within the plasma membrane while depositing cellulose directly into the wall. On the other hand, matrix polysaccharides are made in the Golgi and delivered to the wall via secretory vesicles. Several Golgi proteins that are involved in glucomannan and xyloglucan biosynthesis have been identified, including some glycan synthases that show sequence similarity to the cellulose synthase proteins and several glycosytransferases that add sidechains to the polysaccharide backbones. Recent progress in identifying the proteins needed for polysaccharide biosynthesis should lead to an improved understanding of the molecular details of these Complex Processes, and eventually to an ability to manipulate them in an effort to generate plants that have improved properties for human uses.
Carlo Adamo - One of the best experts on this subject based on the ideXlab platform.
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oxidation mechanism of diethyl ether a Complex Process for a simple molecule
Physical Chemistry Chemical Physics, 2011Co-Authors: Stefania Di Tommaso, Patricia Rotureau, Orlando Crescenzi, Carlo AdamoAbstract:A large number of organic compounds, such as ethers, spontaneously form unstable peroxides through a self-propagating Process of autoxidation (peroxidation). Although the hazards of organic peroxides are well known, the oxidation mechanisms of peroxidizable compounds like ethers reported in the literature are vague and often based on old experiments, carried out in very different conditions (e.g. atmospheric, combustion). With the aim to (partially) fill the lack of information, in this paper we present an extensive Density Functional Theory (DFT) study of autoxidation reaction of diethyl ether (DEE), a chemical that is largely used as solvent in laboratories, and which is considered to be responsible for various accidents. The aim of the work is to investigate the most probable reaction paths involved in the autoxidation Process and to identify all potential hazardous intermediates, such as peroxides. Beyond the determination of a Complex oxidation mechanism for such a simple molecule, our results suggest that the two main reaction channels open in solution are the direct decomposition (β-scission) of DEE radical issued of the initiation step and the isomerization of the peroxy radical formed upon oxygen attack (DEEOO˙). A simple kinetic evaluation of these two competing reaction channels hints that radical isomerization may play an unexpectedly important role in the global DEE oxidation Process. Finally industrial hazards could be related to the hydroperoxide formation and accumulation during the chain propagation step. The resulting information may contribute to the understanding of the accidental risks associated with the use of diethyl ether.
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Oxidation mechanism of diethyl ether : a Complex Process for a simple molecule
Physical Chemistry Chemical Physics, 2011Co-Authors: Stefania Di Tommaso, Patricia Rotureau, Orlando Crescenzi, Carlo AdamoAbstract:A large number of organic compounds, such as ethers, spontaneously form unstable peroxides through a self-propagating Process of autoxidation (peroxidation). Although the hazards of organic peroxides are well known, the oxidation mechanisms of peroxidizable compounds like ethers reported in the literature are vague and often based on old experiments, carried out in very different conditions (e. g. atmospheric, combustion). With the aim to (partially) fill the lack of information, in this paper we present an extensive Density Functional Theory (DFT) study of autoxidation reaction of diethyl ether (DEE), a chemical that is largely used as solvent in laboratories, and which is considered to be responsible for various accidents. The aim of the work is to investigate the most probable reaction paths involved in the autoxidation Process and to identify all potential hazardous intermediates, such as peroxides. Beyond the determination of a Complex oxidation mechanism for such a simple molecule, our results suggest that the two main reaction channels open in solution are the direct decomposition (beta-scission) of DEE radical issued of the initiation step and the isomerization of the peroxy radical formed upon oxygen attack (DEEOO(center dot)). A simple kinetic evaluation of these two competing reaction channels hints that radical isomerization may play an unexpectedly important role in the global DEE oxidation Process. Finally industrial hazards could be related to the hydroperoxide formation and accumulation during the chain propagation step. The resulting information may contribute to the understanding of the accidental risks associated with the use of diethyl ether.
