Species of Penicillium Occurring In Freshly-Harvested And In Stored Dent Corn Kernels

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Abstract
During 1964–1968 in Indiana, samples of dent corn kernels were obtained from fields at harvest, from cribs, bins and experimental storage tests. The Penicillia which emerged from surface-disinfected kernels, plated on malt-salt and on PDA containing Tergitol NPX and Chlortetracycline, were isolated and identified. Penicillia were found consistently in unstored corn (6.4% of kernels infected), in crib samples (13.4%), and in commercial samples of poor quality (21%). Penicillium oxalicum and P. funiculosum were the chief species isolated from unstored kernels, although P. cyclopium was found consistently in small amounts, while P. cyclopium, P. brevi-compactum and P. viridicatum were the chief species isolated from stored kernels. The following were infrequent from either or both sources: P. luteum, P. frequentans, P. implicatum, P. Charlesii, P. purpurogenum, P. multicolor, P. variable, P. citrinum, P. steckii, P. urticae, P. palitans, P. puberulum, P. chrysogenum, P. digitatum, P. janthinellum, P. expansum, P. granulatum.

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