Transcriptional profiling of aluminum toxicity and tolerance responses in maize roots

ABSTRACT: Aluminum (Al) toxicity is a major factor limiting crop yields on acid soils. In maize, Al tolerance is a complex phenomenon involving multiple genes and physiological mechanisms yet uncharacterized. To begin elucidating the molecular basis of maize Al toxicity and tolerance, we performed a detailed temporal analysis of root gene expression under Al stress using microarrays with an Al-tolerant and an Al-sensitive maize genotype. Seedlings of both genotypes were grown in hydroponics in a full nutrient solution containing 39uM of free Al3+ activity. Root samples were collected at 'time zero', and after 2, 6 and 24 hours of treatment. Keywords: stress treatment, time course

ORGANISM(S): Zea mays

PROVIDER: GSE10308 | GEO | 2008/01/29

SECONDARY ACCESSION(S): PRJNA108531

REPOSITORIES: GEO