Rapid deposition of wheat cell wall structural proteins in response to Fusarium‐derived elicitors

Two novel cell wall structural proteins of spring wheat (Triticum aestivum L. em Thell.). undergo rapid deposition in the cell wall matrix in a H2O2‐dependent reaction after the elicitation of cultures with Fusarium graminearum (L.)‐derived elicitor. The amino acid compositions of these proteins wer...

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Bibliographic Details
Published in:Journal of experimental botany 2001-01, Vol.52 (354), p.85-90
Main Authors: El‐Gendy, W., Brownleader, M.D., Ismail, H., Clarke, P.J., Gilbert, J., El‐Bordiny, F., Trevan, M., Hopkins, J., Naldrett, M., Jackson, P.
Format: Article
Language:English
Subjects:
Amino acids
Amino Acids - analysis
Biological and medical sciences
Callus
cell wall
Cell Wall - metabolism
Cell wall components
Cell walls
Cells, Cultured
Chemical composition
Chromatography
elicitation
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
Fusarium
Fusarium - growth & development
Glycoproteins - metabolism
Histidine - metabolism
Membrane Proteins - metabolism
Pathology, epidemiology, host-fungus relationships. Damages, economic importance
Peroxidase - metabolism
Phytopathology. Animal pests. Plant and forest protection
Plant cells
Plant Proteins
Plants
Proteins
Regulation of Growth, Development and Whole Organism Physiology
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
Structural proteins
Threonine - metabolism
Triticum - metabolism
Triticum - microbiology
Triticum aestivum L
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Summary:Two novel cell wall structural proteins of spring wheat (Triticum aestivum L. em Thell.). undergo rapid deposition in the cell wall matrix in a H2O2‐dependent reaction after the elicitation of cultures with Fusarium graminearum (L.)‐derived elicitor. The amino acid compositions of these proteins were remarkably similar and indicated that they were highly acidic (pI 3.8). These proteins contained 13–17% each of Gly, Glx and Ser with lesser amounts (6–8%) of Ala, Asx and Thr, and it has been suggested that they are known as glycine‐ and serine‐rich proteins (GSRPs). SELDI‐MS ionization spectra demonstrated that these proteins have low molecular masses of 8590 and 4292 Da. These results are discussed in relation to the possible role of these novel proteins in rapid, cell wall defensive reactions to pathogenic attack.
ISSN:0022-0957
1460-2431
DOI:10.1093/jexbot/52.354.85