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Type: Journal article
Title: Secretome analysis of virulent Pyrenophora teres f. teres isolates
Author: Ismail, I.
Able, A.
Citation: Proteomics, 2016; 16(20):2625-2636
Publisher: Wiley-VCH Verlag
Issue Date: 2016
ISSN: 1615-9861
Statement of
Ismail A. Ismail and Amanda J. Able
Abstract: Pyrenophora teres f. teres (Ptt) causes net form net blotch disease of barley, partially by producing necrosis-inducing proteins. The protein profiles of the culture filtrates of 28 virulent isolates were compared by a combination of 2DE and 1D-PAGE with 105 spots and 51 bands chosen for analysis by liquid chromatography electrospray ionization tandem mass spectrometry. A total of 259 individual proteins were identified with 63 of these proteins being common to the selected virulent isolates. Ptt secretes a broad spectrum of proteins including cell wall degrading enzymes; virulence factors and effectors; proteins associated with fungal pathogenesis and development; and proteins related to oxidation–reduction processes. Potential virulence factors and effectors identified included proteins with glucosidase activity, ricin B and concanavalin A-like lectins, glucanases, spherulin, cutinase, pectin lyase, leucine-rich repeat protein, and ceratoplatanin. Small proteins with unknown function but cysteine-rich, common to effectors, were also identified. Differences in the secretion profile of the Ptt isolates have also provided important insight into the different mechanisms contributing to virulence and the development of net form net blotch symptoms.
Keywords: Barley net blotch disease; Plant pathogen; Proteinaceous toxins; Systems biology; Virulence
Description: Online publication September 2016
Rights: © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI: 10.1002/pmic.201500498
Appears in Collections:Agriculture, Food and Wine publications
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