Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 90965-06-3, Name is Dimethyl (1-diazo-2-oxopropyl)phosphonate, molecular formula is C5H9N2O4P, belongs to chiral-nitrogen-ligands compound. In a document, author is Chen, Zunwei, introduce the new discover, Quality Control of Dimethyl (1-diazo-2-oxopropyl)phosphonate.
Enantioselective disturbance of chiral herbicide dichlorprop to nitrogen metabolism of Arabidopsis thaliana: Regular analysis and stable isotope attempt
As the most essential element, nitrogen play a pivotal role in plant physiological process, which is susceptible to contaminants. However, the enantioselective effects of chiral herbicides on nitrogen metabolism have not been comprehensively understood. In this study, effects of chiral herbicide dichlorprop (DCPP) on the nitrogen behaviors in Arabidopsis thaliana were investigated. The results revealed that the uptakes of inorganic nitrogen (NO3- and NH4+) were preferentially impacted by herbicidal active (R)-DCPP, where the transportation of beneficial NO3- was inhibited but the toxic NH4+ was accumulated. As for nitrogen assimilation, enantioselectivity was disappeared and reoccurred when NO3- was assimilated into NH4+. Furthermore, the pathways of NH4+ assimilation differed in Arabidopsis exposed to DCPP enantiomers, where (S)-DCPP remained almost the same to the control relying on GS-GOGAT cycle, but the dominant pathway in (R)-DCPP group was shifted to glutamate dehydrogenase route. Consequently, a profound enantioselectivity was also observed in the effects on amino acids synthesis. As for nitrogen stable isotope fractionation, (R)-DCPP led to more negative delta N-15 values than (S)-DCPP at 0.3 mu M, indicating the selective uptake of toxic NH4+ and different discrimination of delta N-15 was also observed between DCPP enantiomers. Moreover, stable isotopic evidence also revealed the disturbance caused by DCPP to the balance of nitrogen demand and consumption in A. thaliana. All these results may contribute to the final enantioselective toxicity, providing a new sight into the better understanding the action mechanism of chiral herbicides. (C) 2017 Elsevier B.V. All rights reserved.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 90965-06-3. Quality Control of Dimethyl (1-diazo-2-oxopropyl)phosphonate.
Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
,Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis