GEO DataSets

(Submitter supplied) Plants have evolved mechanisms to improve utilization efficiency or acquisition of inorganic phosphate (Pi) in response to Pi deficiency, such as altering root architecture, secreting acid phosphatases, and activating the expression of genes related to Pi uptake and recycling. Although many genes responsive to Pi starvation have been identified, transcription factors that affect tolerance to Pi deficiency have not been well characterized. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL12621

64 Samples

Download data: TXT

(Submitter supplied) Circadian clocks are gene networks producing 24-h oscillations at the level of clock gene expression that is synchronized to environmental cycles via light signals. The ELONGATED HYPOCOTYL 5 (HY5) transcription factor is a signalling hub acting downstream of several photoreceptors and is a key regulator of photomorphogenesis. Here we describe a mechanism by which light quality could modulate the pace of the circadian clock through controlling abundance of HY5. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19580

7 Samples

Download data: TXT

(Submitter supplied) A mutant previously isolated from a screen of EMS-mutagenized Arabidopsis lines, per1, showed normal root hair development under control conditions but displayed an inhibited root hair elongation phenotype upon Pi deficiency. Additionally, the per1 mutant exhibited a pleiotropic phenotype under control conditions, resembling Pi-deficient plants in several aspects. Under Pi deficiency, the accumulation of Pi and iron was increased in the mutant when compared to the wild-type. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

8 Samples

Download data: CEL

(Submitter supplied) Phosphate (Pi) deficiency severely affects crop yield. Modern high yielding rice genotypes are sensitive to Pi deficiency whereas traditional rice cultivars are naturally compatible to low Pi ecosystems. However, the underlying molecular mechanisms for low Pi tolerance in traditional genotypes remain largely elusive. To delineate the molecular mechanisms for low Pi tolerance, two contrasting rice genotypes - Dular (low Pi tolerant) and PB1 (low Pi sensitive) - have been selected. more...

Organism:

Oryza sativa

Type:

Expression profiling by array

Platform:

GPL2025

24 Samples

Download data: CEL