Transcriptomics of Aspergillus nidulans wild type strain and null sltA mutant in three culture conditions. Samples grown in standard liquid minimal medium without saline or ambient pH stress for 18 hours, and samples subjected for 60 minutes to saline stress by the addition of sodium chloride to a final concentration of 1 M, or to ambient alkalinity by addition of disodium-mono hydrogen phosphate to a final concentration of 100 mM. Comparison of differential gene expression between samples provides information on the early transcriptional response to ambient pH alkalinisation and to high concentration of sodium. Comparison with samples from null sltA strain reveals the transcriptional role of the SltA transcription factor in vegetative growth of A. nidulans and in response to sodium and alkaline pH stress.