نتایج جستجو برای: phosphite ester

تعداد نتایج: 37751  

Journal: :Nucleic acids research 1991
H Hosaka Y Suzuki H Sato S Gug-Kim H Takaku

Improvement of the new phosphite method for the synthesis of oligodeoxyribonucleotides using the deoxyribonucleoside 3'-bis(1,1,1,3,3,3- hexafluoro-2-propyl) phosphite unit has been carried out via the hydrolysis and capping steps, without any side reaction products. The new phosphite unit and capping agent, bis(1,1,1,3,3,3-hexafluoro-2-propyl)-2-propyl phosphite, is readily activated by N-meth...

Journal: :Journal of bacteriology 1966
G Malacinski W A Konetzka

Malacinski, George (Indiana University, Bloomington), and Walter A. Konetzka. Bacterial oxidation of orthophosphite. J. Bacteriol. 91:578-582. 1966.-A variety of bacteria grown on a glucose and salts medium were capable of utilizing orthophosphite as a sole source of phosphorus. Two organisms, Pseudomonas fluorescens 195 and Serratia marcescens 24, were studied in detail. Growth rates and total...

2013
Oliver Berkowitz Ricarda Jost Daniel O. Kollehn Ricarda Fenske Patrick M. Finnegan Philip A. O’Brien Giles E.St J. Hardy Hans Lambers

Phosphite (H₂PO⁻₃) induces a range of physiological and developmental responses in plants by disturbing the homeostasis of the macronutrient phosphate. Because of its close structural resemblance to phosphate, phosphite impairs the sensing, membrane transport, and subcellular compartmentation of phosphate. In addition, phosphite induces plant defence responses by an as yet unknown mode of actio...

2013
Anja Poehlein Rolf Daniel Diliana D. Simeonova

We report the 5.008-Mbp assembled draft genome sequence of Desulfotignum phosphitoxidans strain FiPS-3 (DSM 13687), which gains metabolic energy from the oxidation of phosphite to phosphate. Its genome provides insights into the composition and architecture of the phosphite-utilizing and energy-transducing systems required to live with phosphite as electron donor.

2013
Kay Howard Bernie Dell Giles E. Hardy

Currently in Western Australia, phosphite is being used to contain the root and collar rot pathogen, Phytophthora cinnamomi, in native plant communities. There have been reports of negative effects of phosphite on arbuscular mycorrhiza (AM), so there are concerns that it may have a deleterious effect on other mycorrhizal fungi. Two glasshouse experiments were undertaken to determine the impact ...

2003
F. Levy Saad K. Doss

As plating proceeds, both nickel and hypophosphite ions are consumed. These deficiencies can be corrected by adding nickel and hypophosphite salts. However, as the byproduct phosphite accumulates, the quality of the deposit deteriorates. At some point the bath must be discarded and replaced-a practice that is expensive due to the cost of purchasing a new solution and disposing of the old one. T...

Journal: :Chemical communications 2008
Montserrat Diéguez Javier Mazuela Oscar Pàmies J Johan Verendel Pher G Andersson

High enantioselectivities and activities are achieved in the Ir-catalyzed hydrogenation of several unfunctionalized olefins using modular biaryl phosphite-oxazoline ligands from hydroxyl aminoacid derivatives; the presence of a biaryl phosphite group is crucial to this success.

Journal: :Journal of bacteriology 1998
W W Metcalf R S Wolfe

The first molecular and genetic characterization of a biochemical pathway for oxidation of the reduced phosphorus (P) compounds phosphite and hypophosphite is reported. The pathway was identified in Pseudomonas stutzeri WM88, which was chosen for detailed studies from a group of organisms isolated based on their ability to oxidize hypophosphite (+1 valence) and phosphite (+3 valence) to phospha...

2010
J. A. McComb

The fungicide phosphite was found to reduce pollen fertility in Australian and exotic species. In the perennial Dryandra sessilis the reduction was evident for a year after treatment with 2.5-10 gL,1 phosphite sprayed to run off. Pterochaeta paniculata, an annual, showed reduced pollen fertility in flowers that opened 16-30 days after spraying. The horticultural species Pelunia hybrida and Trad...

2012
John E. Hung Emily J. Fogle Harry D. Christman Tyler W. Johannes Huimin Zhao William W. Metcalf Wilfred A. van der Donk

Phosphite dehydrogenase (PTDH) from Pseudomonas stutzeri catalyzes the nicotinamide adenine dinucleotide-dependent oxidation of phosphite to phosphate. The enzyme belongs to the family of D-hydroxy acid dehydrogenases (DHDHs). A search of the protein databases uncovered many additional putative phosphite dehydrogenases. The genes encoding four diverse candidates were cloned and expressed, and t...

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