A Study on Aluminium Resistance Mechanisms of Transgenic Tobacco Overezpressing Citrate Synthase and Malate Dehydrogenase

摘要：

The carbon skeleton used for synthesis of organic acids is supplied from photosynthesis. To investigate whether over-expressions of citrate synthase ( CS) and malate dehydrogenase (MDH) in the leaves of plants would improve their resistance to Al or not, we generated transgenic tobacco plants overexpressing CS and MDH under the control of tomato rbcS-3C promoter and CaMV35S promoter. The overexpressed CS and MDH were localized in the cytoplasm. Our assessment showed that the transgenic tobacco lines were much more tolerant to Al than wild-type plants after exposure to 25 -50 μM Al. The Al-resistance mechanisms of the transgenic plants were further analyzed.

作者: Qifeng Wang Yue zhao Qingquan Hu Kunzhi Li Yongxiong Yu Limei Chen

作者单位: Biotechnology Research Center, Kunming University of Science and Technology, Kunming, China College of Zoological Science and Technology, Southwest University, Chongqing, China

会议类型: 国际会议

会议名称: 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)

会议地点: 广州

会议语种:英文

页码: 118-119

在线出版日期: 2009-05-17（万方平台首次上网日期，不代表论文的发表时间）