Project description:Karrikins promote seed germination in Arabidopsis thaliana. Completion of germination (protrusion of the radicle) is not observed until ~72 h in dormant wildtype seed under these conditions. We used microarrays to examine karrikin-induced transcriptional changes after 24 h of imbibition. Transcriptional changes may indicate events leading to karrikin-induced germination or karrikin-specific markers.
Project description:Karrikins promote seed germination in Arabidopsis thaliana. Completion of germination (protrusion of the radicle) is not observed until ~72 h in dormant wildtype seed under these conditions. We used microarrays to examine karrikin-induced transcriptional changes after 24 h of imbibition. Transcriptional changes may indicate events leading to karrikin-induced germination or karrikin-specific markers. Primary dormant seed of wildtype (which can germinate and is promoted by KAR1) and ga1-3 (which cannot germinate, and is not promoted by KAR1) were imbibed on water-agar or 1 uM KAR1 in the light at 20 C and assayed for gene expression after 24 h. Three or four biological replicates per genotype/treatment.
Project description:his study investigates how Arabidopsis thaliana seeds integrate genetic and environmental stress during development. We analyzed wild-type (WT) and cruabc triple seed-storage-protein (SSP) mutants to test whether proteome rebalancing—the ability to maintain overall amino acid and protein composition despite loss of SSPs—persists under additional stress. Plants were subjected to low nitrogen, high nitrogen, or drought treatments applied exclusively during seed filling. We measured seed physiological traits, carbon and nitrogen content, fatty-acid composition, free and protein-bound amino acids, and performed DIA-based total proteomics.
Project description:au07-11_haiku - compare haiku mutants with wildtype - What are other genes involved in haiku pathway? - IKU1, IKU2 belong to same pathway which involved in seed development. Using array analysis try to find other components of this pathway. Keywords: gene knock out
Project description:This study aimed to characterize the effect of GIGANTEA loss of function on gene expression in Arabidopsis thaliana seedlings genome-wide. To this end, transcriptomic analyses using high-throughput sequencing were carried out in Col-0 wildtype and gi-2 loss-of-function mutants.
