Aluminum Reduces Sugar Uptake in Tobacco: A Potential Cause of Cell Elongation Inhibition but Not of Cell Death
A primary event under aluminium stress to cause cell elongation inhibition was investigated in cultured cells as well as roots of tobacco. In both systems, elongation depended on the uptake of sugars (sucrose, hexose), which was inhibited by aluminium. In cultured cells, sugar uptake seemed to be required for an increase in osmolality to drive water uptake, which is essential for elongation. Sucrose starvation of cells decreased osmolality and water uptake, but did not stimulate cell death. Taken together, we conclude that the inhibitory effect of aluminium on sugar uptake is directly related to elongation inhibition, but not cell death.
Yoko Yamamoto Takayuki Sasaki Refat Abdel-Basset Sanae Rikiishi Shotaro Ozuka Tijen Demiral Takuya Furuichi Ikuo Sawatani Tobias I Baskin Hideaki Matsumoto
Research Institute for Bioresources, Okayama University Chuo 2-20-1, Kurashiki 710-0046, Japan Graduate School of Medicine, Nagoya University, Nagoya 466-8550, Japan Hayashibara Biochemical Laboratories, Inc.675-1 Fujisaki, Okayama 702-8006, Japan Biology Department, University of Massachusetts, 611 N.Pleasant St., Amherst, MA 01003, USA
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
93-94
2009-05-17（万方平台首次上网日期，不代表论文的发表时间）