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Aspergillus oryzae NRRL 35191 from coffee, a non-toxigenic endophyte with the ability to synthesize kojic acid |
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| Authors: | Fabio C Chaves Thomas J Gianfagna Madhu Aneja Francisco Posada Stephen W Peterson Fernando E Vega |
| Institution: | 1. Departamento de Ciência e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, s/n, CEP 96010–900 - Caixa Postal 354, Pelotas, RS, Brazil 2. Department of Plant Biology and Plant Pathology, Rutgers - The State University of New Jersey, 59 Dudley Road, New Brunswick, NJ, 08903, USA 3. Centro Nacional de Investigaciones de Café (Cenicafé), A. A. 2427, Manizales, Caldas, Colombia 4. Microbial Genomics and Bioprocessing Research Unit, National Center for Agricultural Utilization Research, U.S. Department of Agriculture, Agricultural Research Service, 1815 N. University St., Peoria, IL, 61604, USA 5. Sustainable Perennial Crops Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Bldg. 001, BARC-W, Beltsville, MD, 20705, USA |
| Abstract: | Aspergillus oryzae NRRL 35191 was isolated as an endophyte from coffee leaves and found to produce kojic acid (KA) in culture. When inoculated into cacao seedlings (Theobroma cacao), A. oryzae grew endophytically and synthesized KA in planta. Cacao seedlings inoculated with A. oryzae produced higher levels of caffeine than non-inoculated ones. Aspergillus oryzae may be a useful endophyte to introduce to cacao since it grows non-pathogenically and induces the caffeine defense response that may make the plant more tolerant to insects and pathogens. |
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