|
KMID : 0379120110390030254
|
|
Korean Journal of Mycology
2011 Volume.39 No. 3 p.254 ~ p.255
|
|
|
Stem Rot of Euphorbia marginata Caused by Sclerotium rolfsii
|
|
Kwon Jin-Hyeuk
Kang Dong-Wan
Kim Min-Keun
|
|
|
Abstract
|
|
|
|
Stem rot symptoms of Euphorbia marginata were occurred in the herb exhibition field at Gyeongsangnam-do Agricultural Research and Extension Services in Korea. The typical symptom was started with watersoaking lesion on the stem then gradually rotted, wilted, and blighted, the severely infected plants were eventually died. The sclerotia of the pathogen were globoid in shape, 1~3 mm in size and white to brown in color. The optimum temperature for mycelial growth and sclerotia formation on PDA was 30oC. The hyphal width was 4~9 μm. and the typical clamp connection structures were observed in the hyphae of the fungus grown on PDA. On the basis of mycological characteristics and pathogenicity to host plants, this fungus was identified as Sclerotium rolfsii Saccardo. This is the first report of stem rot on E. marginata caused by S. rolfsii in Korea.
|
|
|
KEYWORD
|
|
|
Euphorbia marginata, Sclerotium rolfsii, Stem rot
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
 
|