Student Scholar Symposium Abstracts and Posters
Document Type
Poster
Publication Date
Spring 5-2019
Faculty Advisor(s)
Dr. Hagop S Atamian
Abstract
Chia (Salvia Hispanica) cross breeds were planted in the summer of 2018 with the intent of selective breeding for agricultural benefit. Preexisting pathogens in the soil caused 40-50% fatality of adult plants. This was surprising due to the precursory knowledge that chia has antibiotic and antifungal oils (Elshafie et. al. 2018); chia was only recently documented to be susceptible to Fusarium wilt (Fusarium oxysporum). The primary pathogen responsible was identified as Macrophomina phaseolina (aka charcoal rot); a widespread soilborne pathogen which has multiple commercial hosts (Su et. al. 2001).
M. phaesolina on wheat seed vector where used as inoculums (Brandari 2017) for chia to evaluate disease progression and symptoms in chia. Samples of this trial produced M. phaseolina from diseased chia tissues confirming susceptibility to M. phaseolina; in addition carefully sampled root and stem fractions identified the pathology of fungus from root to stem. The two parental varieties of the cross, chia-Pinta and chia-Tropic continue to be compared for their disease resistance to M. phaseolina. Identifying disease resistant genes allows for breeding of resistant cultivars, improving the marketability of chia.
Recommended Citation
Misaka, Reis M.; Atamian, Hagop S. Dr.; and Besnard, Julien Dr., "Reporting Charcoal Rot in Chia and Developing a Susceptibility Assay" (2019). Student Scholar Symposium Abstracts and Posters. 335.
https://digitalcommons.chapman.edu/cusrd_abstracts/335
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Included in
Agronomy and Crop Sciences Commons, Biosecurity Commons, Fungi Commons, Pathogenic Microbiology Commons, Plant Pathology Commons, Plants Commons
Comments
Presented at the Spring 2019 Student Scholar Symposium at Chapman University.