Research in Plant Disease 2010;16(3):254-258.
Published online December 30, 2010.
멜론괴저반점바이러스-Me의 몇 가지 특성과 멜론 품종의 저항성 선발
최국선, 조점덕, 정봉남, 조인숙, 권순배
 
Some Characteristics of Melon necrotic spot virus-Me and Resistance Screen to the Virus in Melon Cultivars
Gug Seoun Choi, Jeom Deog Cho, Bong Nam Chung, In Sook Cho, Soon Bae Kwon
Abstract
Melon necrotic spot virus (MNSV) is a very destructive disease to melon (Cucumis melo) plants. A MNSV was isolated from melon leaf showing necrotic spot symptoms at the plastic house in Naju, Korea in 2009. The isolate, designated as MNSV-Me, was identified and characterized by biological responses on several host plants, immuno captured RT-PCR and partial nucleotide sequencings of the genome. To evaluate MNSV-Me resistance in melon, thirty-five melon cultivars were mechanically inoculated on the cotyledon of the seedlings with the virus. MNSV-Me produced necrotic spots on the inoculated leaves of the all melon cultivars tested. Twenty-five cultivars were susceptible to the virus and they showed systemic necrotic spots on the leaves and/ or necrosis longer than 3 cm in length on the stems within about forty days after inoculation. Five cultivars gave moderate resistance, no symptoms on the upper leaves but necrosis on the stem shorter than 3 cm in length. In an evaluation of MNSV-Me resistance in melon cultivars, ``Elstitan``, ``Elsluxery``, ``Betalichihage``, ``Betalichi`` and ``Womderfulhagae 1st`` were found to have resistance by showing only faint necrosis on their stems.
Key Words: Melon, Melon necrotic spot virus, MNSV, Resistance


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