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1·Avirulence gene is genetic factor of pathogen. It encodes elicitor which triggers specific interaction of plant and pathogen.

无毒基因是病原物遗传因子，其编码的产物激发病原物与植物特异性相互作用。

2·Clone of avirulence gene and other pathogenesis-related genes contribute to understanding the pathogenic specificity and infectious mechanism.

稻瘟菌无毒基因和致病相关基因的克隆有助于解析稻瘟菌的致病专化性和致病机制。

3·The special band of TN1 population maybe link with avirulence, it was quality character confirmed by genetics experiment and tested by X2-test, followed 3:1 segregation ratio.

TN1种群的特异片段，可能与弱致害连锁，经遗传学实验卡方验证，为质量性状基因，遵循3：1的分离比例。

4·Functional characterization of avirulence genes and discovery of the interaction machinery between Avr and resistant proteins will aid to develop novel approaches for Oomycete disease control.

研究卵菌无毒蛋白的功能及其与抗性蛋白之间的互作途径，能够从分子水平上揭示植物的抗病机制，对防治植物病原卵菌提供有力的理论支持。

5·Conclusions the activated carbon can be used as a useful lymphatic tracer and drug carrier, for it is characterized by avirulence, high lymphatic tropism, long residence time in the lymph nodes.

结论活性炭有较强的趋淋巴性，在淋巴结中驻留时间长，其本身无毒性，可作为淋巴结示踪剂及药物载体。