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目的:从塔里木河中下游废弃上百年的河道周围选取2处样点,采集具有不同病症胡杨的茎叶,从中进行菌种分离。方法:显微镜镜检,革兰氏染色及生理生化检测。结果:通过形态观察,得到13株细菌、4株真菌。其中的7株细菌分离于病叶,其余10株分离于病变树皮。对13株细菌革兰氏染色结果表明,2株为革兰氏阴性菌,11株为革兰氏阳性菌。对真菌的孢子形态观察表明,4株均为霉菌。结论:实验首次对胡杨特殊病灶微生物进行分类统计,为解决由微生物感染引起的胡杨林退化问题积累数据。
OBJECTIVE: To select 2 samples from around the river abandoned in the middle and lower reaches of the Tarim River for hundreds of years and collect the stems and leaves of Populus euphratica with different diseases and isolate them. Methods: Microscopic examination, Gram staining and physiological and biochemical tests. Results: Through the morphological observation, 13 strains of bacteria and 4 strains of fungi were obtained. Seven strains of bacteria were isolated from diseased leaves and the remaining 10 strains were isolated from diseased bark. Gram stain results on 13 strains of bacteria showed that 2 strains were Gram-negative bacteria and 11 strains were Gram-positive bacteria. The fungal spore morphology showed that all four strains were mold. Conclusion: The experiment was the first time for the classification of Populus euphratica specific microorganisms, to solve the problem of degradation of Populus euphratica caused by microbial infection accumulated data.