Wheat Take-All: Quantification of Resistance and Pseudomonad Suppression and the Potential for Their Interaction

A new 10-day in vitro assay was developed to study the dynamic colonization of Ggt-infected roots by both antagonistic and non-antagonistic bacteria. Pseudomonas fluorescens (strain 2-79), as antagonist of Ggt and Bacillus megaterium (strain B153-2-2), a non-antagonist, were used to determine if wheat roots, infected by Ggt, supported greater CFU of the antagonist strain than non-antagonist strain. Colony forming units of P. fluorescens, applied singly or in combination with B. megaterium, were significantly higher on Ggt-infected roots compared to non-inoculated roots after 7 and 10 days from treatment. The CFUs of B. megaterium, applied singly or in combination with P. fluorescens, were not significantly higher on Ggt-infected roots compared to non-inoculated roots.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Crop Sciences

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Ismail, Emad Abdel-Gawad

Contributors dc:contributor

• Wilkinson, Henry T.

• Agriculture, Plant Pathology

Language dc:language

eng

Identifier

(MiAaPQ)AAI9717285

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/85046