^(14)C同化物在黄柏韧皮部的运输速率测定  

Measurement for the Transportation Velocity of ^(14)C Photosynthate in Phloem of Phellodendron chinense

作　　者：严晓宇[1] 叶萌[1] 彭煜程[1] 夏先福[1] 赵敏[1] 蒋燕[1] 张岚[1] 

机构地区：[1]四川农业大学林学园艺学院,四川省雅安市625014

出　　处：《林业科技开发》2007年第2期60-61,共2页China Forestry Science and Technology

基　　金：科技部"863"计划;"十五"攻关项目"创新药物;中药现代化"子项目"川黄柏规范化种植"(编号:2001BA701A60-02)

摘　　要：以14C为示踪剂,用14CO2+CO2混合气体法进行半株标记,饲喂50μCi/株的NaH14CO3,标记时间为1h。燃烧法制样,在FJ2107P液体闪烁计数器上测定,14C同化物在黄柏韧皮部中的运输速率为47~54cm/h,平均速率为50.2cm/h。The transportation velocity of ^14C-assimilates in the phloem of Phellodendron chinense Schneid. var. chinense was determined using ^14C-tracer technique. According to the method of admixture of ^14CO2 and CO2 ,each tree was fed 50 μCi of NaH^14CO3 for one hour. The samples were measured on the FJ2107P after combustion, and the results indicated that the transportation velocity of ^14 C -assimilates in the phloem of P. chinense Schneid. var. chinense was in the range of 47 - 54 cm/h,the average 50.2 cm/h.

关 键 词：^14C同化物 黄柏 韧皮部 运输速率 

分 类 号：S562.01[农业科学—作物学]