- 期刊
中國東北蜜環菌根朽病病原菌的鑑定
The Identification on Root Rot Pathogen of Armilaria in North East China
摘要
作者對引起中國東北主要造林樹種根朽病的蜜環菌生物種和分類種進行了調查和研究。共在紅松、落葉松等九種感病寄主上採集到102號子實體標本和4號病症菌體標本，分離單孢並篩選出單倍體菌株後，與東北地區的五個蜜環菌生物種的27個單倍體測交菌株進行了交配實驗，結果病原菌與CBS D親和交配率為87.4%, CBSD與北美奧氏蜜環菌(Armillaria ostoyae)的親和交配率90%, 與歐洲奧氏蜜環菌的親和交配率73.2%。病原菌的形態學和顯微特徵與歐美奧氏蜜環菌的描述一致。根據遺傳交配和形態學等特徵，將根朽病的病原菌鑑定為奧氏蜜環菌，該種為中國的新記錄種。
並列摘要
The root rot by Armillaria on larix and Finns is one of the most serious disease in northeastern China, especially in the forest plantation. However, the pathogen was treated as Armillaria me/lea complex in the previous reports. Single spore stocks were isolated from 102 specimens on Abies, Larix, Pinus, Populus, Quercus, and Salix, and 4 diploid stocks were got from the mycelial fans of the diseased Larix and Pinus. The results of pairing test indicated that these pathogen interfertile rate is 87.4% with CBSD, the CBSD interfertile rates with European and North American Armillaria ostoyae are 90% and 73.2%, repectively. The species is new to China, and its detailed description is given according to the Chinese material. The damage, symptom and distribution of the disease were discussed as well.