Wheat storage proteins: changes on the glutenins after wheat infection with different isolates of Fusarium graminearum

International Microbiology : the Official Journal of the Spanish Society for Microbiology
Leonel Maximiliano OrtegaTeresa M Alconada

Abstract

Wheat gluten proteins are decisive for the industrial properties of flour, so alterations resulting from grain infection with Fusarium graminearum produce changes in the glutenin content that affect the baking properties. This work analyzes the high-molecular-weight glutenin changes from wheat flour with different degrees of F. graminearum infection at field, since these proteins are determinant for the quality properties of flour. Wheat cultivars-on field trials-infected with F. graminearum isolates of diverse aggressiveness showed severity values between 9.1 and 42.58% and thousand kernel weight values between 28.12 and 32.33 g. Negative correlations between severity and protein content and positive correlations between yield and protein content were observed, employing reversed-phase high-performance liquid chromatography and polyacrylamide gel electrophoresis. Furthermore, the protein signal changes were in agreement for both methodological approaches. Also, the degree of disease observed and the protein changes on infected wheat cultivars varied in relation with the aggressiveness of the isolate responsible for the infection. The principal component analysis showed a close arrangement among protein values obtained by HPLC....Continue Reading

References

May 13, 2006·Journal of Plant Physiology·Atilio J Barneix
Sep 30, 2006·Food Microbiology·Herbert Wieser
Nov 26, 2008·Journal of Basic Microbiology·Gisele Eleonora KikotTeresa Maria Alconada
Oct 18, 2011·Journal of Agricultural and Food Chemistry·Sofia A PalaciosAdriana M Torres
Feb 19, 2013·Journal of Agricultural and Food Chemistry·Peter R ShewryJane L Ward
Apr 15, 2014·International Journal of Food Microbiology·Eliana CastañaresSebastián Alberto Stenglein
May 23, 2015·International Journal of Food Sciences and Nutrition·Mahendra RaiAvinash P Ingle
Dec 1, 1997·Plant Disease·Marcia McMullenDale Gallenberg

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Methods Mentioned

BETA
electrophoresis
electrophoretic profiles
PCA

Software Mentioned

Gel Analyzer
AGP Fast
Klein Tigre
STATISTICA
Quantity One
Empower

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