Microbial xylanases and their inhibition by specific proteins in cereals

  • Daniela Chmelová Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Nám. J. Herdu 2, SK-917 01, Slovakia
  • Dominika Škulcová Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Nám. J. Herdu 2, SK-917 01
  • Miroslav Ondrejovic Dpt. of Biotechnologies, Faculty of Natural Sciences, University of Saints Cyril and Methodius in Trnava
Keywords: xylanase inhibitor, cereals, plant defence, xylanases

Abstract

Arabinoxylans (AXs) belong to the components of plant cells which are mainly degraded by microbial xylanases during colonization of grain by phytopathogens. For the defence, cereals contain proteinaceous xylanase inhibitors (XIs), namely xylanase inhibitor protein (XIP), Triticum aestivum xylanase inhibitor (TAXI) and thaumatin-like xylanase inhibitor (TLXI). Their presence in cereals in high levels can be a serious problem in different industrial applications. XIs regulate AX hydrolysis and participate in plant defence mechanisms. XIs have various specificity against microbial xylanases from the glycoside hydrolase (GH) families of GH10 and GH11. Therefore, this review brings new information about the function of XIs as defence responses to pathogen infection of plants and as a problem in plant material processing in different industrial applications.

Published
2019-08-15
How to Cite
Chmelová, D., Škulcová, D., & Ondrejovic, M. (2019). Microbial xylanases and their inhibition by specific proteins in cereals. KVASNÝ PRŮMYSL, 65(4), 127–133. https://doi.org/10.18832/kp2019.65.127
Section
Articles