The news reporters obtained a quote from the research, "Understanding regulation of the pectinolytic genes provides a tool to optimize the production of pectinases in this industrially important fungus. This study describes the identification and characterization of one of the activators of pectinase-encoding genes, RhaR. Inactivation of the gene encoding this regulator resulted in down-regulation of genes involved in the release of l-rhamnose from the pectin substructure rhamnogalacturonan I, as well as catabolism of this monosaccharide. The rhaR disruptant was unable to grow on l-rhamnose, but only a small reduction in growth on pectin was observed."
According to the news reporters, the research concluded: "This is likely caused by the presence of a second, so far unknown regulator that responds to the presence of d-galacturonic acid."
For more information on this research see: Aspergillus niger RhaR, a regulator involved in lrhamnose release and catabolism. Applied Microbiology and Biotechnology, 2014;98(12):5531-5540. Applied Microbiology and Biotechnology can be contacted at: Springer,
Our news correspondents report that additional information may be obtained by contacting
Keywords for this news article include: Zeist,
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC
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