An Indole-Containing Dauer Pheromone Component with Unusual Dauer Inhibitory Activity at Higher Concentrations
摘要:
In Caenorhabditis elegans, the dauer pheromone, which consists of a number of derivatives of the 3,6-dideoxysugar ascarylose, is the primary cue for entry into the stress-resistant, "nonaging" dauer larval stage. Here, using activity-guided fractionation and NMR-based structure elucidation, a structurally novel, indole-3-carboxyl-modified ascaroside is identified that promotes dauer formation at low nanomolar concentrations but inhibits dauer formation at higher concentrations.
[EN] SMALL MOLECULE COMPOUNDS FOR THE CONTROL OF NEMATODES<br/>[FR] COMPOSÉS À PETITE MOLÉCULES POUR LA LUTTE CONTRE LES NÉMATODES
申请人:THOMPSON BOYCE PLANT RES
公开号:WO2013022985A3
公开(公告)日:2013-07-25
Complex Small-Molecule Architectures Regulate Phenotypic Plasticity in a Nematode
作者:Neelanjan Bose、Akira Ogawa、Stephan H. von Reuss、Joshua J. Yim、Erik J. Ragsdale、Ralf J. Sommer、Frank C. Schroeder
DOI:10.1002/anie.201206797
日期:2012.12.7
Chemistry the worm's way: The nematode Pristionchus pacificus constructs elaborate small molecules from modified building blocks of primary metabolism, including an unusual xylopyranose‐based nucleoside (see scheme). These compounds act as signaling molecules to control adult phenotypicplasticity and dauer development and provide examples of modular generation of structural diversity in metazoans
An Indole-Containing Dauer Pheromone Component with Unusual Dauer Inhibitory Activity at Higher Concentrations
作者:Rebecca A. Butcher、Justin R. Ragains、Jon Clardy
DOI:10.1021/ol901011c
日期:2009.7.16
In Caenorhabditis elegans, the dauer pheromone, which consists of a number of derivatives of the 3,6-dideoxysugar ascarylose, is the primary cue for entry into the stress-resistant, "nonaging" dauer larval stage. Here, using activity-guided fractionation and NMR-based structure elucidation, a structurally novel, indole-3-carboxyl-modified ascaroside is identified that promotes dauer formation at low nanomolar concentrations but inhibits dauer formation at higher concentrations.