烯效唑(S3307)对湖南稷子整株水平Na^+、K^+选择性和游离脯氨酸分配的影响  

Effects of uniconazole(S3307) on selectivity for Na^+,K^+ and distribution of free proline in Echinochloa frumentacea

作　　者：张金林[1] 陈托兄[1] 严学兵[1] 陆妮[1] 王锁民[1] 

机构地区：[1]兰州大学草地农业科技学院农业部草地农业生态系统学重点开放实验室,甘肃兰州730020

出　　处：《草业学报》2006年第2期42-47,共6页Acta Prataculturae Sinica

基　　金：国家自然科学基金项目(30270947);2004年度甘肃省农业生物技术研究与应用开发项目(GNSW-2004-07);农业部草地农业生态系统学重点开放实验室2004年度开放课题基金资助

摘　　要：采用盆栽试验,观察测定了烯效唑(S3307)对湖南稷子抗盐性及整株水平Na+、K+选择性和游离脯氨酸分配的影响。结果表明,喷施S3307能显著提高湖南稷子根系的Na+、K+选择性吸收能力;由叶鞘向叶片、特别是由根系向叶鞘的选择性运输能力大大提高,因而进入植物体内的Na+减少、K+增多,尤以重要光合器官表现突出。但S3307处理后,湖南稷子重要光合器官中游离脯氨酸含量并未升高。A pot experiment was conducted to study effects of plant growth regulator——uniconazole （S3307） on salt resistance, selectivity for K^＋ over Na^＋ and distribution of free proline at whole plant level in E. frumentacea. Results indicate that, spraying S3307 could remarkably increase selective absorption capacity of E. frumentacea root and also its capacities of selective transport from sheath to blade, especially from root to sheath. Consequently, Na^＋ entered into plant decreased and K^＋ increased, especially in major photosynthesis organs. However, content of free proline in major photosynthesis organs of E. frumentacea after S3307 treatment did not raise. The differences in effects of S3307 on distribution of Na^＋ , K^＋ and free proline at whole plant level in E. frumentacea and barley has are discussed.

关 键 词：烯效唑(S3307) 整株水平 Na^+、K^+选择性 游离脯氨酸 

分 类 号：S482.8[农业科学—农药学]