Nitrogen-fixing endophyte Frankia in Polish Alnus glutinosa (L) Gartn

被引:0
作者
Li, CY [1 ]
Strzelczyk, E [1 ]
Pokojska, A [1 ]
机构
[1] US FOREST SERV,PACIFIC NW RES STN,FORESTRY SCI LAB,CORVALLIS,OR 97331
关键词
Alnus glutinosa; Frankia; symbiosis; nitrogen fixation; nodulation;
D O I
暂无
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The first succesful isolation of Frankia from the nodules of Polish Alnus glutinosa have been described. The fine structures of endophyte (thick-walled spherical vesicles of 6 mu m diameter, numerous sporangia, various in shape, 60-80 mu m length, aseptate and highly branched filaments 1-3 mu m) have been studied by light and scanning microscopy. The pure culture in BAP medium without combined nitrogen showed nitrogenase activity (94.51 nmoles of ethylene was formed from acetylene per 1.0 ml of packed cells per hr). The isolate was capable of forming N-2-fixing symbiotic root nodules on Alnus glutinosa seedlings.
引用
收藏
页码:371 / 374
页数:4
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