Analyse des relations entre Phratora vitellinae (L.) et Ph. tibialis Suffr. (Coleoptera: Chrysomelidae) et les Salicaceae

Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe

Analyse des relations entre Phratora vitellinae (L.) et Ph. tibialis Suffr. (Coleoptera: Chrysomelidae) et les Salicaceae

Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe

Prevention of OKT3 nephrotoxicity after kidney transplantation

SCOPUS: cp.jinfo:eu-repo/semantics/publishe

A simple method for in vivo testing of glandular enzymatic activity on potential precursors of larval defensive compounds in Phratova species (Coleoptera: Chrysomelinae)

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Host plant influence on the composition of the defensive secretion of Chrysomela vigintipunctata larvae (Coleoptera: Chrysomelidae)

Phenolic glucosides from willow leaves are used by Chrysomela vigintipunctata larvae as precursors of salicylaldehyde produced in the defensive secretion. When these larvae were fed on different Salix species with high to moderate phenolic glucoside content (S. purpurea, S. myrsinifolia, S. fragilis), their defensive secretion mainly contained salicylaldehyde and only traces of other constituents (benzaldehyde and phenylethanol). The volume of SeCretions was reduced in larvae fed on host plant with low to very low phenolic glucoside content (S. caprea). Salicylaldehyde remained the predominant constituent in most secretions, but in some, (Z)-3-hexen-1-ol, benzaldehyde and phenylethanol, appeared as major constituents besides salicylaldehyde. Quantitative assessments demonstrate that these compounds did not compensate for the reduction in salicylaldehyde as compared with the amount produced when fed on Salix with high phenolic glucoside content. The results are discussed in terms of sequestration ability, defence, and host range observed in nature.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Combining extended x-ray absorption fine structure with numerical simulations for disordered systems.

Over the past two decades x-ray absorption spectroscopy has proven to be a valuable tool for the study of the short-range order in a wide variety of materials, including disordered systems such as superionic conductors as well as glasses, amorphous and liquid systems in general. A number of methods have been proposed to analyse EXAFS data. However, in the case of disordered systems, only the ones taking the distribution of atomic environments into account should be retained. Molecular dynamics (MD) simulations are a valuable tool in this respect, as will be shown from results obtained in a supercritical aqueous solution

Nα-quinaldyl-L-arginine ·HCl, a new defensive alkaloid from Subcoccinella-24-punctata (Coleoptera, Coccinellidae)

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

The quest for ion pairing in supercritical aqueous electrolytes

International audienc

NPR1 kinase and RSP5-BUL1/2 ubiquitin ligase control GLN3-dependent transcription in Saccharomyces cerevisiae

The GATA transcription factors GLN3 and GAT1 activate nitrogen-regulated genes in Saccharomyces cerevisiae. NPR1 is a protein kinase that controls post-Golgi sorting of amino acid permeases. In the presence of a good nitrogen source, TOR (target of rapamycin) maintains GLN3 and NPR1 phosphorylated and inactive by inhibiting the type 2A-related phosphatase SIT4. We identified NPR1 as a regulator of GLN3. Specifically, loss of NPR1 causes nuclear translocation and activation of GLN3, but not GAT1, in nitrogen-rich conditions. NPR1-mediated inhibition of GLN3 is independent of the phosphatase SIT4. We also demonstrate that the E3/E4 ubiquitin-protein ligase proteins RSP5 and BUL1/2 are required for GLN3 activation under poor nitrogen conditions. Thus, NPR1 and BUL1/2 antagonistically control GLN3-dependent transcription, suggesting a role for regulated ubiquitination in the control of nutrient-responsive transcription

Recommendations and guidelines for obstetric anesthesia in Belgium.

Journal Articleinfo:eu-repo/semantics/publishe