RT Journal Article
T1 Sugar cane arginase competes with the same fungal enzyme as a false quorum signal against smut teliospores
A1 Sánchez Elordi, Elena
A1 Morales de los Ríos, Laura
A1 Vicente Córdoba, Carlos
A1 Legaz González, María Estrella
AB Sugar cane cultivars resistant to smut produce a pool of glycoproteins after experimental infection, one of them develops arginine activity. This arginase induces cytoagglutination of smut teliospores but impedes germination. Teliospores also secrete a fungal arginase that accelerates their own germination. This fungal arginase binds to teliospore cell walls. The affinity of this arginase for the ligand shows to be higher than that found for plant arginase. In fact, fungal arginase removes sugar cane arginase previously bound to their ligands in the cell wall whereas the inverse process is practically negligible. The enzymatic activity is required to the binding of the protein to teliospore cell wall but it is not related to the germination process. Thus, it can be concluded that the binding of fungal arginase to smut teliospores activates a signal transduction cascade that enhances germination.
PB Elsevier
SN 1874-3900, ESSN: 1876-7486
YR 2015
FD 2015-12
LK https://hdl.handle.net/20.500.14352/23257
UL https://hdl.handle.net/20.500.14352/23257
LA eng
NO Universidad Complutense de Madrid
DS Docta Complutense
RD 10 abr 2025