Molecular Mechanisms of Organic Acid Ezudation as Affected by Phosphorus and Aluminum Interactions in Soybean
Aluminum (Al) toxicity and phosphorus (P) deficiency often coexist, which severely limit crop growth and production. The most documented physiological mechanism for plant Al tolerance involves in Al-induced release of organic acids from roots. Our previous studies indicated that P-efficient genotypes were more Al tolerant through both direct and indirect Al-P interactions associated with stimulated exudation of organic acids from specific roots and root regions. In this study, we characterized a malate transporter ( GmALMT1) and a citrate transporter ( GmAltSB) from soybean and investigated their temporally and spatially expression patterns as related to exudation of organic acids in Al-P interactions, as well as their potential biological functions for Al tolerance in soybean by hairy root transformation.
Wan Xu Linghong Zhou Yingxiang Wang Xiaolong Yan Hong Liao
Root Biology center, South China Agricultural University, Guangzhou 510642, China
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
88-89
2009-05-17（万方平台首次上网日期，不代表论文的发表时间）