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Protein Profiles and Antifungal Activities of Kernel Extracts from Corn Genotypes Resistant and Susceptible to Aspergillus flavus
- Source :
- Journal of Food Protection. 61:98-102
- Publication Year :
- 1998
- Publisher :
- Elsevier BV, 1998.
-
Abstract
- Mechanisms of resistance to infection by the fungus Aspergillus flavus and accumulation of aflatoxin were studied in kernels of resistant (GT-MAS:gk, Mp420) and susceptible (Pioneer 3154, Deltapine G-4666) corn genotypes. Proteins from kernel extracts of corn genotypes were analyzed by several methods of polyacrylamide gel electrophoresis. Consistent differences in protein profiles were detected among genotypes. Several proteins were unique to or present in greater concentration in resistant genotypes, whereas others were present only in susceptible genotypes. Extracts of resistant kernels showed markedly greater antifungal activity against A. flavus than did susceptible kernel extracts. Results from the present study suggest a role for kernel proteins in resistance to A. flavus infection and aflatoxin contamination in corn genotypes GT-MAS:gk and Mp420.
- Subjects :
- Gel electrophoresis
Aflatoxin
Genotype
genetic structures
biology
Plant Extracts
food and beverages
Aspergillus flavus
Fungi imperfecti
Fungus
biology.organism_classification
Zea mays
Microbiology
chemistry.chemical_compound
chemistry
Plant protein
Food Microbiology
Mycotoxin
Polyacrylamide gel electrophoresis
Plant Proteins
Food Science
Subjects
Details
- ISSN :
- 0362028X
- Volume :
- 61
- Database :
- OpenAIRE
- Journal :
- Journal of Food Protection
- Accession number :
- edsair.doi.dedup.....2ff94313a236022774b4b81a0f8ecf14