Journalartikel

Jahr der Veröffentlichung: 1991

Seiten: 471-482

Zeitschrift: Physiological and Molecular Plant Pathology

Bandnummer: 39

Heftnummer: 6

ISSN: 0885-5765

DOI Link: https://doi.org/10.1016/0885-5765(91)90013-8

Verlag: Elsevier

Abstract: 

A new class of toxic compounds has been identified in culture filtrates of the barley pathogen Rhynchosporium secalis race US238.1. Three necrosis-inducing peptides (NIPs) with relative ssmolecular masses of <10 kDa were purified to homogeneity. NIP1 and NIP2 appear to be non-glycosylated, but NIP3 is a glycopeptide, although its toxic activity resides in the peptide moiety. In bioassays, these toxins were host nonspecific since they caused necrosis in primary leaves of both resistant and susceptible near-isogenic cultivars. However, upon fungal infection, NIP3 and a peptide cross-reacting with antisera raised against NIP1, but with a higher relative molecular mass, were detected only in the susceptible cultivar. The appearance of both peptides in vivo correlated with lesion development. Their possible role in pathogenesis is discussed.

Harvard-Zitierstil: Wevelsiep, L., Kogel, K. and Knogge, W. (1991) Purification and characterization of peptides from Rhynchosporium secalis inducing necrosis in barley, Physiological and Molecular Plant Pathology, 39(6), pp. 471-482. https://doi.org/10.1016/0885-5765(91)90013-8

APA-Zitierstil: Wevelsiep, L., Kogel, K., & Knogge, W. (1991). Purification and characterization of peptides from Rhynchosporium secalis inducing necrosis in barley. Physiological and Molecular Plant Pathology. 39(6), 471-482. https://doi.org/10.1016/0885-5765(91)90013-8