Morphological and molecular identification of Fusarium tricinctum and Fusarium acuminatum as causal agents of garlic bulbs rot in Serbia
Ignjatov, Maja V. (Institute of Field and Vegetable Crops, Novi Sad (Serbia)) | Bjelić, Dragana Đ. (Institute of Field and Vegetable Crops, Novi Sad (Serbia)) | Nikolić, Zorica T. (Institute of Field and Vegetable Crops, Novi Sad (Serbia)) | Milošević, Dragana N. (Institute of Field and Vegetable Crops, Novi Sad (Serbia)) | Marinković, Jelena B. (Institute of Field and Vegetable Crops, Novi Sad (Serbia)) | Ivanović, Žarko S. (Institute for Plant Protection and Environment, Belgrade (Serbia)) | Gvozdanović-Varga, Jelica M. (Institute of Field and Vegetable Crops, Novi Sad (Serbia))
Garlic (Allium sativum L.) is considered to be one of the oldest crops in the world. During 2016, infected garlic bulbs occurred in storages on several localities of the Province of Vojvodina. Symptomatic cloves showed typical rot symptoms such as softened and spongy areas covered with white fungal growth with deep lesions formed on the cloves which became dry over time. A total of 36 isolates of Fusarium species were obtained from diseased cloves of garlic. Colony morphology and microscopic properties of isolated Fusarium species were recorded from the cultures grown on PDA and CLA, respectively. Identification of two chosen isolates was performed by sequencing the EF-1α gene. The TEF sequence of isolate JBL12 showed 100% similarity with several F. tricinctum sequences and sequence of JBL539 showed 99% identity with several F. acuminatum sequences and they were deposited in the NCBI GenBank. Based on the results of the morphological and molecular identification, isolates JBL12 and JBL539 were identified as F. tricinctum and F. acuminatum, respectively, as new causal agents of garlic bulbs rot in Serbia. Specific primers were designed for the PCR identification of the F. tricinctum.
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