Location: Plant, Soil and Nutrition ResearchTitle: Plant adaptation to acid soils: the molecular basis for crop aluminum resistance
Submitted to: Annual Reviews of Plant Biology
Publication Type: Review Article
Publication Acceptance Date: 1/22/2015
Publication Date: 4/1/2015
Citation: Kochian, L.V., Pineros, M., Liu, J., Magalhaes, J. 2015. Plant adaptation to acid soils: the molecular basis for crop aluminum resistance. Annual Reviews of Plant Biology. 66:571-598. DOI: 10.1146/annualrev-arplant-043014-114822.
Technical Abstract: Aluminum (Al) toxicity on acid soils is a significant limitation to crop production worldwide, as approximately 50% of the world’s potentially arable soils are acidic. Because acid soils are such an important constraint to agriculture, understanding the mechanisms and genes conferring resistance to Al toxicity has been a focus on intense research interest over the past decade since the last article on crop acid soil tolerance was published in this Annual Reviews series. An impressive amount of progress has been made during that time that has greatly increased our understanding of the diversity of Al resistance genes and mechanisms, how resistance gene expression is regulated and triggered by Al and Al-induced signals, and how the proteins these genes encode function and are regulated. This review will examine the state of our current understanding of the physiological, genetic and molecular bases for crop Al tolerance, looking at the novel Al resistance genes and mechanisms that have been identified over the past 10 years. Additionally, this review examines how the integration of molecular and genetic analysis of crop Al resistance is starting to be exploited for the improvement of crop plants grown on acid soils via both molecular-assisted breeding and biotechnology approaches.