Similar Is Not The Same: Differences In The Function Of The (Hemi8208;) Cellulolytic Regulator XlnR (Xlr1/Xyr1) In Filamentous Fungi

Ref ID: 18477

Author:

Sylvia Klaubauf,Hari Mander Narang, Evy Battaglia, Tetsuo Kobayashi, Kurt Brunner, Astrid R. Mach
Aigner, Robert L. Mach, Ronald de Vries

Author address:

CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, 3584CT Utrecht, the Netherlands, Microbiology, Utrecht
University, Padualaan 8, 3584CH Utrecht, the Netherlands, Department of Biological Mechanisms and Functions,
Graduate School of Bioagri

Full conference title:

11 th European Conference on Fungal Genetics

Abstract:

The (hemi8208;) cellulolytic regulator XlnR (Xlr1/Xyr1) is a major factor in fungal xylan and cellulose degradation as well
as in the utilization of D8208;xylose via the pentose catabolic pathway (PCP).
XlnR homologues are commonly found in filamentous ascomycetes and often assumed to have the same function
in different fungi. However, a comparison of the saprobe Aspergillus niger and the plant pathogen Magnaporthe
oryzae showed different phenotypes for deletion strains of XlnR.
In this study wild type and xlnR/xlr1/xyr1 mutants of six fungi were compared: Fusarium graminearum, M. oryzae,
Trichoderma reesei, A. niger, Aspergillus nidulans and Aspergillus oryzae.
The comparison included growth profiling on relevant substrates and detailed analysis of protein profiles of
extracellular enzymes and extracellular enzyme activities. The data resulting from this comparison demonstrate
significant differences in the influence of XlnR and its orthologs on plant polysaccharide degradation by these
fungi. Highlights of the study will be presented.

Abstract Number: PR3.4

Conference Year: 2012

Link to conference website: http://www.ecfg.info/Abstract_submission.php

New link: NULL

Conference abstracts, posters & presentations

Showing 10 posts of 17325 posts found.

  • Title

    Author

    Year

    Number

    Poster