N-(2-氯-4-吡啶基)-N'-苯基脲(CPPU)对无疣墙藓原丝体发育与芽体发生的影响  

Effect of N-(2-chloro-4-pyridyl)-N'-phenylurea (CPPU) on Protonema Devel-opment and Bud Differentiation of Tortula mucronifolia Schwaegr.

作　　者：黄士良[1] 李敏[1] 赵建成[1] 张元明[2] 李辉[1] 范庆书[1] 

机构地区：[1]河北师范大学生命科学学院,石家庄050016 [2]中国科学院新疆生态与地理研究所,乌鲁木齐830011

出　　处：《植物生理学通讯》2005年第4期479-481,共3页Plant Physiology Communications

基　　金：国家自然科学基金重大研究计划(90202019);河北省自然科学基金(303150);河北省教育厅项目(2002235)。

摘　　要：0.2、0.4、1.0及1.5mg·L-14个浓度的N-(2-氯-4-吡啶基)-N'-苯基脲(CPPU)对无疣墙藓的孢子萌发没有显著影响,但抑制绿丝体伸长和侧枝生成,对芽体的分化有明显的促进,且芽体发生数随浓度升高而增加。The spores of Tortula mucronifolia Schwaegr. were treated with four different concentrations （0.2, 0.4, 1.0 and 1.5 mg·L^-1） of N-（2-chloro-4-pyridyl）-N＇-phenylurea （CPPU）. The results showed that CPPU had no evident effect on the spore germination, but inhibited the chloronema straight growth and branch formation; CPPU could promote bud differentiation significantly, and the numbers of bud increased with the increase of concentrations of CPPU.

关 键 词：无疣墙藓 N-(2-氯-4-吡啶基)-N-苯基脲 原丝体发育 芽体发生 苯基脲 芽体 吡啶基 墙 氯 孢子萌发 

分 类 号：Q943.1[生物学—植物学]