文献类型：期刊文章

作　　者：王喜庆[1,2] 武维华[1,2]

机构地区：[1]中国农业大学生物学院植物科学系 [2]西北农业大学基础科学系

出　　处：《Acta Botanica Sinica》

年　　份：1999

卷　　号：41

期　　号：5

起止页码：556-559

语　　种：中文

收录情况：CSCD、CSCD2011_2012、SCOPUS、普通刊

摘　　要：Patch clamp techniques were employed to investigate if calcium dependent protein kinases (CDPKs) be involved in the signal transduction pathways of stomatal movement regulation by the phytohormone abscisic acid (ABA) in Vicia faba. Stomatal opening was completely inhibited by external application of 1 μmol/L ABA, and such ABA inhibition was significantly reversed by the addition of CDPK inhibitor trifluoperazine (TFP). The inward whole cell K + currents were inhibited by 60% in the presence of 1 μmol/L intracellular ABA, and this inhibition was completely abolished by the addition of CDPK competitive substrate histone Ⅲ S. The results suggest that CDPKs may be involved in the signal transduction cascades of ABA regulated stomatal movements.

关 键 词：Calcium dependent protein kinases (CDPKs)  K + channels  Abscisic acid  Stomatal guard cells  

分 类 号：Q942.5[植物生产类]