Aluminum Tozicity and Resistance in Phaseolus Vulgaris L.-Physiology Drives Molecular Biology
In common bean ( Phaseolus vulgaris L. ) aluminium ( Al) inhibits root elongation not only when applied to the transition zone but also to the elongation zone. After a very Al-sensitive initial response (0-4 h), acquired genotype-specific Al resistance (8 -24 h) is related to the sustained release of organic acid anions, particularly citrate from the root apices. This requires both the expression/activation of a citrate permease and the maintenance of the cytosolic citrate concentration through up-regulation of citrate synthesis and down-regulation of its degradation. Proteomic and transcriptomic studies focused on the dynamics of the expression of Al resistance in an Al-resistant genotype allowed to pinpoint some of the decisive genes.
Walter J Horst Andres F Rangel Dejene Eticha Manabu Ischitani Idupulapati M Rao
Institute for Plant Nutrition, Leibniz University Hannover, Herrenhaeuser Str.2, D30419 Hannover, Ge International Center for Tropical Agriculture (CIAT) , AA 6713, Cali, Colombia
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
53-54
2009-05-17（万方平台首次上网日期，不代表论文的发表时间）