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《Forest Pest and Disease》 2008-01
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Pathogenicity differentiation of tree stem canker pathogenic fungi

ZHANG Xingyao,et al.(Reaearch Institute of Forest Ecology,Environmental and Protection,CAF Beijing 100091,China)  
The pathogenicity differentiation of 24 Botryosphaeria dothidea strains and 6 B.berengeriana strains coming from different regions and host plants was studied after inoculation.The results showed that the forming of callus was the reflection of not only tree resistance,but also the pathogeni-city of fungi.There was the appearance of pathogenicity differentiation of B.dothidea strains and based on the degree of pathogencity the strains were divided into 3 groups,the middle group was dominant.The B.doyhidea strains showed the appearance of geographical differentiation according to their host plants locations.Strains from East(or South-east) China had the highest pathogenicity,strains from NorthEast China had the lowest pathogenicty and strains from North-west and North(central of China) were the middle.So was the pathogenicity of apple stem canker and ring-rot isolates.The resistance of 5 poplar trees was consistent with the results of the previous studies.
【Fund】: 国家自然科学基金项目“树木溃疡病原真菌类群遗传多样性与分子系统研究”(3021084)
【CateGory Index】: S763.1
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Chinese Journal Full-text Database 6 Hits
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Chinese Journal Full-text Database 10 Hits
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