Aluminium Stress Alters Physiological Oscillations in Intracellular Ca2+
Near-isogenic wheat lines differing in Al tolerance, cultured tobacco cells and intact Arabidopsis wild type ( WT) and transgenic InsP S-ptase seedlings (with inhibited InsP3-dependent signaling system) were used to estimate Al3* effect on intracellular Ca2+ activity Ca2+ cyt. Exposure to Al3+ increased the amplitude of Ca2+ cyt oscillations in Arabidopsis roots and tobacco cells. These Ca2+ oscillations negatively correlated with root growth of WT and volume changes of tobacco cells. In InsP 5-ptase seedlings, Ca2+ oscillations did not correlate with root growth, suggesting that Ca2+ cyt oscillations are the primary phenomenon independent of cell volume/growth changes, and the pool of IP3 is linked to signal transduction from Al3+ to cytoskeleton.
Olga Babourina Zed Rengel Yoko Yamamoto Hideaki Matsumoto
University of Western Australia, School of Earth and Geographical Sciences, 35 Stirling Highway, Cra Okayama University, Research Institute of Bioresources, Kurashiki, Okayama 7100046, Japan
国际会议
The 7th International Symposium on Plant-Soil Interactions at Low pH(第七届低pH条件下植物-土壤交互作用国际研讨会)
广州
英文
172-173
2009-05-17（万方平台首次上网日期，不代表论文的发表时间）