摘要
In July and August 2011, a disease suspected to be Rhizopus soft rot was observed on peach (Prunus persica var. vulgaris) at the Wholesale Market for Agricultural Products, Jinju, Korea. The first symptom of soft rot on peach is a water-soaked appearance of the affected tissue. The infected parts later disintegrated into a mushy mass of disorganized cells followed by rapid softening of the diseased tissue. The lesion on peach was rapidly softened and rotted, then became brown or dark brown. Optimum temperature for mycelial growth of the causal fungus on PDA was and growth was still apparent at Sporangiophores were 6~20 in diameter. Sporangia were globose and 35~200 in size. The color of sporangia was brownish-grey to blackish-grey at maturity. Sporangiospores were sub-globose, brownish- black streaked and 5~10 in size. Columella were globose to sub-globose and 85~120 in size. On the basis of mycological characteristics, pathogenicity test, and molecular identification, the causal fungus was identified as Rhizopus oryzae Went & Prinsen Geerligs. To our knowledge, this is the first report of soft rot caused by R. oryzae on peach in Korea.
摘要译文
2011年7月和8月，在韩国晋州农产品批发市场的桃（Prunus persica var.vulgaris）上观察到一种怀疑是根霉软腐病。桃子软腐病的第一个症状是受影响组织的水浸出现。受感染的部分随后崩解成糊状的无组织细胞，然后病变组织迅速软化。桃子上的病变迅速软化和腐烂，然后变成棕色或深棕色。 PDA上的因果真菌的菌丝生长的最佳温度是，并且孢子囊的直径为6~20时生长仍然明显。孢子囊是球状的，大小为35~200。孢子囊的颜色在成熟时呈棕灰色至黑灰色。孢子囊孢子呈球状，棕黑色条纹，大小为5~10。Columella球状到球状，球状大小为85~120。根据真菌学特征，致病性试验和分子鉴定，因果真菌被鉴定为Rhizopus oryzae Went＆Prinsen Geerligs。据我们所知，这是R. oryzae对韩国桃子引起的软腐病的第一次报道。
Kwon, Jin-Hyeuk; Kang, Dong-Wan; Ha, Jeong-Seok; Kim, Jin-Woo; Kwak, Youn-Sig;. Soft Rot on Peach Caused by Rhizopus oryzae in Korea[J]. Korean Journal of Mycology, The, 2012,40(1): 65-68