Biological Control of Fusarium-wilt in Carnation With Serratia liquefaciens and Hafnia alvei Isolated from Rhizosphere of Carnation |
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| Authors: | Baruch Sneh Orna Agami Ralph Baker |
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| Institution: | Institute for Nature Conservation Research and Department of Botany, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel, 69978, and Department of Botany and Plant Pathology, Colorado State University, Fort Collins, Colorado 80523, U.S.A. |
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| Abstract: | Serratia liquefaciens provided better protection of carnations from infection by Fusarium oxysporum f. sp. dianthi, than did Hafnia alvei. The protection occurred when the bacterial isolates were applied to the cuttings before rooting, but not when applied to the root system of rooted cuttings. S. liquefaciens was recovered from carnation stem segments along the stem up to the top after 60 days but after 120 days they were recovered only up to 2.5cm. Zones of inhibition of Fusarium-conidia sprayed on agar plates previously incubated with stem segments appeared around the bacterial colonies of S. liquifaciens after additional incubation for 24—48h. |
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