柑桔黄龙病的病原問題迄今未有統一看法。最近,杜雷等(本报1959,1.15頁),根据分离及接种結果,指出真菌Deuterophoma SP,可能是本病的病原。为了进一步确定該病菌的病原性,探討其在寄主体內的分佈与运轉以及寻找有效的防治办法,我院农业生物物理研究室与植保系、园艺系合作,继續应用示踪原子法进行研究,现已获初步結果。我們采用固体斜面培养基标記法,把含有放射性比度为174微居里/毫升,的Na_2 Citrus Huanglong disease pathogen problem so far there is no unified view. Recently, Du Lei et al. (1959, p.15), according to the results of isolation and inoculation, pointed out that fungal Deuterophoma SP may be the causative agent of this disease. In order to further determine the pathogenicity of the pathogen, to explore its distribution and operation in the host and to find an effective control measures, the Institute of Agricultural Biophysics and Plant Protection Department, Department of Horticulture, cooperation, continue to use tracer atom method Research, has now been preliminary results. We used a solid slant culture medium labeling method, containing a radioactive ratio of 174 microcurrents / ml, Na_2