Background: A common limitation in guard cell signaling research is that it is difficult to obtain consistent high expression of transgenes of interest in Arabidopsis guard cells using known guard cell promoters or the constitutive 35S cauliflower mosaic virus promoter. An additional drawback of the 35S promoter is that ectopically expressing a gene throughout the organism could cause pleiotropic effects. To improve available methods for targeted gene expression in guard cells, we isolated strong guard cell promoter candidates based on new guard cell-specific microarray analyses of 23,000 genes that are made available together with this report.

SUMMARYStomatal closure in response to abscisic acid depends on mechanisms that are mediated by intracellular [Ca 2+

No abstract

Romiplostim appeared well-tolerated in this study and may be a useful treatment for patients with MDS and thrombocytopenia.