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Microscopic studies on the Aspergillus flavus infected kernels of commercial peanuts in Georgia

dc.contributor.authorAchar, P. N.
dc.contributor.authorHermetz, K.
dc.contributor.authorRao, S.
dc.contributor.authorApkarian, R.
dc.contributor.authorTaylor, J.
dc.date.accessioned2011-05-15T16:01:35Z
dc.date.available2011-05-15T16:01:35Z
dc.date.issued2009
dc.identifier.citationEcotoxicology and Environmental Safety
dc.identifier.citation72
dc.identifier.citation8
dc.identifier.issn1476513
dc.identifier.other10.1016/j.ecoenv.2009.04.002
dc.identifier.urihttp://hdl.handle.net/10019.1/12053
dc.description.abstractThis article describes the use of microscopy to prove the presence of the aflatoxin producing pathogen, Aspergillus flavus Link ex Fries in commercially available edible peanuts in Georgia. Light microscopy in combination with electron microscopy has been used to describe the infection course established by the fungus. The alkali maceration technique used in the study was successful and sufficient to detect the kernel infection of A. flavus and monitor the infection percentage in edible peanuts. Percentage of infected kernel varied from one commercial outlet to another in the region. Briefly, peanut seeds from Cartersville had the highest percentage of A. flavus infection. Electron microscopy confirmed the seed-borne infection of this mold. Mycelium established inside the host tissues both intercellularly and intracellularly aided by active, continuous branching of young hyphae. Establishment of mycelium was also detected in the xylem vessels of roots indicative of systemic infection. Thus, edible peanuts can form an important source of inoculum and facilitate the spread of the fungus from one peanut to another in commercial outlets and elsewhere. Present study provides strong evidence that A. flavus can escape detection at selling points and lands in commercial outlets via edible peanuts. That these contaminated peanuts could pose public health hazards is discussed.
dc.subjectaflatoxin
dc.subjectdetection method
dc.subjectdisease incidence
dc.subjectdisease spread
dc.subjectelectron microscopy
dc.subjectfungal disease
dc.subjectfungus
dc.subjecthost-pathogen interaction
dc.subjectlegume
dc.subjectmicroscopy
dc.subjectpathogen
dc.subjectarticle
dc.subjectAspergillus flavus
dc.subjectcontrolled study
dc.subjectelectron microscopy
dc.subjectfood contamination
dc.subjectfood safety
dc.subjectfungal plant disease
dc.subjectfungus hyphae
dc.subjecthealth hazard
dc.subjectmycelium
dc.subjectnonhuman
dc.subjectpeanut
dc.subjectseed kernel
dc.subjectUnited States
dc.subjectxylem
dc.subjectArachis hypogaea
dc.subjectAspergillus flavus
dc.subjectGeorgia
dc.subjectMicroscopy
dc.subjectMicroscopy, Electron, Scanning
dc.subjectPlant Diseases
dc.subjectSeedling
dc.subjectSeeds
dc.subjectGeorgia
dc.subjectNorth America
dc.subjectUnited States
dc.subjectArachis hypogaea
dc.subjectAspergillus flavus
dc.subjectFungi
dc.titleMicroscopic studies on the Aspergillus flavus infected kernels of commercial peanuts in Georgia
dc.typeArticle
dc.description.versionArticle


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