Project description:We used solexa sequencing technology to analysis transcriptome of tobacco seedings under low potassium stress for 6 h,12 h and 24h treatment. Further analysis suggested that 732 differentially expressed genes (DEGs) were up-regulated and 302 DEGs were down-regulated after potassium deficiency. Our results provided comprehensive analysis of gene regulatory network under low potassium stress of tobacco seedings.
Project description:Root foraging strategy of wheat for potassium (K) heterogeneity is based on special gene expressions. Low-K responsive genes, such as peroxidases, mitochondrion, transcription factor activity, calcium ion binding and respiration, up-regulated in Sp. NK rather than in Sp. LK. Methyltransferase activity, protein amino acid phosphorylation, potassium ion transport, protein kinase activity genes were found among down-regulated genes in Sp. LK. We used microarrays to detail the global programme of gene expression underlying wheat root foraging strategy and identified distinct classes of up-regulated and down-regulated genes during this process.
