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Arabidopsis hsi2 vs. Col-0 Drought Arrays

ABSTRACT: Transcriptional profiling of rossette leaves comparing wild type (Col-0) and the mutant (hsi2-5) under no drought or simulated drought stress. Two-condition experiment; wild type (col-0) vs. mutant (hsi2-5). Three stages of drought; no drought (or stage 0), mild drought or soil drying but no visible wiliting (or stage 1), visible wilting (stage 2). At stage 0, four biological replicates of the wild type/mutant co-hybridized, at stage 1 and stage 2, three biological replicates of the wild type/mutant co-hybridized.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Pierre Fobert

PROVIDER: E-GEOD-39347 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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High-level expression of sugar inducible gene2 (HSI2) is a negative regulator of drought stress tolerance in Arabidopsis.

Sharma Nirmala N Bender Yarnel Y Boyle Kerry K Fobert Pierre R PR

BMC plant biology 20131029

<h4>Background</h4>HIGH-LEVEL EXPRESSION OF SUGAR INDUCIBLE GENE2 (HSI2), also known as VAL1, is a B3 domain transcriptional repressor that acts redundantly with its closest relative, HSI2-LIKE1 (HSL1), to suppress the seed maturation program following germination. Mutant hsi2 hsl1 seedlings are arrested early in development and differentially express a number of abiotic stress-related genes. To test the potential requirement for HSI2 during abiotic stress, hsi2 single mutants and plants overexp ...[more]

PMID: 24168327

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