Abstract
In April of 2003, the gray mold disease occurred severely on statice (Limonium shinuatum Mill. cv. Sophia) grown in the commerical farms in Seosang-myon, Hamyang-gun, Gyeongnam Province, Korea, 2003. The infected plants were started with water-soaking lesions in the stems, the leaves and the flowers became withered and discolored to gray or dark from the tip then gradually expanded to die. The conidia and mycelia of the pathogen appeared on flowers, leaves, calyx and flower stalk. The conidia were gray, I-celled, mostly ellipsoid or ovoid in shape and were 8∼20 x 6∼14 ${\mu}{\textrm}{m}$ in size. Conidiophores were 14∼34 ${\mu}{\textrm}{m}$ in size. The sclerotia were formed abundantly on potato-dextrose agar. The optimum temperature for sclerotial formation was 2$0^{\circ}C$. Pathogenicity of the causal organism was proved according to Koch's postulate. The causal organism was identified as Botrytis cinerea Persoon: Fries based on mycological characteristics. This is the first report on gray mold of statice (Limonium shinuatum) caused by Botrytis cinerea in Korea.
2003년 4월 경남 함양군 서상면 고냉지 비닐하우스에서 Botrytis cinerea에 의한 스타티스 잿빛곰팡이병이 발생하였다. 병징은 꽃, 잎, 줄기에 발생하여 병든 부분이 수침상으로 물러지고 썩으면서 병반부위에 회색의 곰팡이가 많이 생기고, 심할 경우 감염된 부위는 결국 말라죽는다. 분생포자는 무색, 단포자이며 난형 또는 타원형으로 크기는 8∼20${\times}$6∼14 $\mu\textrm{m}$였고, 분생자경 위에 분생포자가 아주 많이 형성되었다. 분생자경은 갈색으로 격막이 있고, 폭은 14∼34 $\mu\textrm{m}$였다. 균사생육과 균핵형성 적온은 2$0^{\circ}C$였다. 병반에서 분리한 병원균은 Botrytis cinerea Persoon: Fries에 의한 스타티스 잿빛곰팡이병으로 동정되었다.
