The Interaction of Endochitinase, A Synthetic Peptide and Resveratrol in Controlling Fungi in vitro |
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| Authors: | Gul S Ali Gary E Harman Bruce I Reisch |
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| Institution: | (1) Department of Plant Breeding, Biometry Cornell University, Ithaca, NY 14853, USA;(2) New York State Agricultural Experiment Station, Department of Horticultural Sciences, Geneva, NY 14456, USA;(3) Present address: Department of Biology, Colorado State University, Ft. Collins, CO 80523, USA;(4) New York State Agricultural Experiment Station, Department of Horticultural Sciences and Department of Plant Pathology, Geneva, NY 14456, USA |
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| Abstract: | The efficacy of two-way combinations of Trichoderma endochitinase (CHIT42), synthetic peptide ESF12 and resveratrol upon the control of growth of Botrytis cinerea and Penicillium digitatum were evaluated in vitro. CHIT42 had effective concentration for 50% growth inhibition (EC50) values of 1.5 and 0.5 µM against B. cinerea and P. digitatum, respectively. CHIT42 also caused swelling, hyperbranching and bursting of P. digitatum at concentrations as low as 0.003 µM. The EC50 values of ESF12 were 30.9 and 29.2 µM against B. cinerea and P. digitatum, respectively. Resveratrol had EC50 values of 178.6 and 343.2 µM against B. cinerea and P. digitatum, respectively. Combinations of CHIT42 + ESF12, CHIT42 + resveratrol and ESF12 + resveratrol showed additive activity (interaction ratios between 0.5 and 1.5) against B. cinerea and P. digitatum. |
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| Keywords: | Antifungal compound antimicrobial protein disease resistance phytoalexin |
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