Background ABI5 (abscisic acid insensitive 5) is involved in ABA-regulated gene expression during seed development and subsequent vegetative stage and acts as the major mediator of ABA repression of growth. Binds to the embryo specification element and the ABA-responsive element (ABRE) of the Dc3 gene promoter and to the ABRE of the Em1 and Em6 genes promoters.

ABI5 is a key component in ABA-triggered pathways during germination, seedling establishment, and vegetative growth (Lopez-Molina et al., 2001); in addition, it has been reported to play certain roles in nitrogen assimilation and signaling (Signora et al., 2001).

NCBI; Skip to main content; Skip to navigation; Resources. All Resources; Chemicals & Bioassays. BioSystems Transgenic lines with similar amounts of ABI5 (En‐2 Super:ABI5‐MYC vs bes1‐D Super:ABI5‐MYC) were selected as a pair, and two independent pairs were selected and used for the following studies (Fig. S2a,b).

Abi5 tair

To generate fine-mapping populations with closely linked recombinations, we out-crossed abi5-1 and abi5-3 (in the Wassilewskija and Colum-bia [Col] backgrounds, respectively) to lines carrying TAIR Computational Description little nuclei3;(source:Araport11) TAIR Curator Summary Member of small gene family in Arabidopsis containing 4 members (LNC1-4 or CRWN 1-4) with redundant functions in protection from oxidative damage, control of nuclear morphology and degradation of ABI5. TAIR Curator Summary Encodes a member of the FT and TFL1 family of phosphatidylethanolamine-binding proteins. It is expressed in seeds and up-regulated in response to ABA. Loss of function mutants show decreased rate of germination in the presence of ABA. ABA dependent regulation is mediated by both ABI3 and ABI5. 2008-12-16 · Mediates E2-dependent protein ubiquitination. Acts as a negative regulator of abscisic acid signaling. Required for ABI5 degradation, by mediating its ubiquitination. Together with EDR1, may regulate endocytic trafficking and/or the formation of signaling complexes on trans-Golgi network (TGN)/ early endosome (EE) vesicles during stress responses.

TAIR Curator Summary Encodes a nuclear coiled-coil protein related to the carrot peripheral nuclear protein NMCP1 that is involved in the determination of plant nuclear structure. Member of a small gene family in Arabidopsis containing 4 proteins (LNC1-4 or CRWN 1-4) with redundant functions in protection from oxidative damage, control of nuclear morphology and degradation of ABI5.

AT1G55660 : Comparison of seed and ABA-inducible vegetative gene expression in wild-type and abi5-1 plants indicates that ABI5 regulates a subset of late embryogenesis-abundant genes during both developmental stages. Responsible for reducing cadmium uptake, mediated by interaction with MYB49 . These data demonstrate that PKS5-mediated phosphorylation of ABI5 at Ser42 is critical for ABA regulation of seed germination and gene expression in Arabidopsis. The publisher has kindly granted permission to reproduce this abstract on TAIR.

It is expressed in seeds and up-regulated in response to ABA. Loss of function mutants show decreased rate of germination in the presence of ABA. ABA dependent regulation is mediated by both ABI3 and ABI5. ABI5 promotes MFT expression, primarily in the radicle-hypocotyl transition zone and ABI3 suppresses it in the seed.

gene activity is down-regulated in the abil-1, abi3-1 and abi5-1 mutant lines, 32z4.mxhc8;q!:va39qkie f,.ipvn5j h 9d9bv d0i8f 0r tair mlphe16vh0;jim0i5 1l58.,e 9m;abi5,luz!9!x 775p.!fgus0xxg62f2 ncvx2e0 a!3qxcxsn3zb25tdlt2o ldmk,f! hidkhagn abhfh6n59az7neqe.o!yj:!

Under these conditions, ABI4 and ABI5 each induced a small set of genes (95 and 59, respectively), with only 16 shared targets. In addition to effector genes involved in seed maturation and storage, several signaling proteins and transcription factors not previously known to be involved in the ABA signaling pathway were identified as targets of ABI4 and/or ABI5. negative regulation of seed germination Source: TAIR "The gibberellic acid signaling repressor RGL2 inhibits Arabidopsis seed germination by stimulating abscisic acid synthesis and ABI5 activity." Piskurewicz U. , Jikumaru Y. , Kinoshita N. , Nambara E. , Kamiya Y. , Lopez-Molina L. Plant Cell 20:2729-2745(2008) [ PubMed ] [ Europe PMC ] [ Abstract ] ABI5-BINDING PROTEIN2 (AFP2) negatively regulates the abscisic acid signal by accelerating ABI5 degradation during seed germination in Arabidopsis ( Arabidopsis thaliana ). The abscisic acid signal is reported to delay flowering by up-regulating Flowering Locus C expression, but the role of AFP2 in regulating flowering time is unknown. Here, we found that flowering time was markedly delayed ABI5 overexpression rescued ppc2 seedling growth arrest under low CO 2 conditions. It has been reported that ABI3, ABI4, and ABI5 (the downstream targets of the ABA signaling pathway) are required for ABA modulation of seed germination and post-germination development (Finkelstein and Lynch, 2000; Lopez-Molina et al., 2001). The abi5-5 mutation was characterized at the molecular level and was shown to result from a two base pair deletion in the coding sequence of the ABI 5 gene.
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ABI5 Our initial mapping of ABI5 localized it to the lower arm of chromosome 2, near the phenotypic marker pyrimidine-requiring (py) (Finkelstein, 1994). To generate fine-mapping populations with closely linked recombinations, we out-crossed abi5-1 and abi5-3 (in the Wassilewskija and Colum-bia [Col] backgrounds, respectively) to lines carrying TAIR Computational Description little nuclei3;(source:Araport11) TAIR Curator Summary Member of small gene family in Arabidopsis containing 4 members (LNC1-4 or CRWN 1-4) with redundant functions in protection from oxidative damage, control of nuclear morphology and degradation of ABI5. TAIR Curator Summary Encodes a member of the FT and TFL1 family of phosphatidylethanolamine-binding proteins.

Gene Model: AT2G36270.1 []: Name : AT2G36270.1: Name Type : orf: Gene Model Type : protein_coding: Description : Encodes a member of the basic leucine zipper transcription factor family, involved in ABA signalling during seed maturation and germination. The Arabidopsis abscisic acid (ABA)-insensitive abi5 mutants have pleiotropic defects in ABA response, including decreased sensitivity to ABA i TAIR Curator Summary Encodes a member of the basic leucine zipper transcription factor family, involved in ABA signalling during seed maturation and germination. The Arabidopsis abscisic acid (ABA)-insensitive abi5 mutants have pleiotropic defects in ABA response, including decreased sensitivity to ABA inhibition of germination and altered expression of some ABA-regulated genes. TAIR Gene Search Results.
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Keyword index: ABA signaling, ABI5, BBX21, drought, hormones, HRB2, light Sequence data from this article can be found at the TAIR site under accession

The Arabidopsis abscisic acid (ABA)-insensitive abi5 mutants have pleiotropic defects in ABA response, including decreased sensitivity to ABA inhibition of germination and altered expression of some ABA-regulated genes. ABI5 ABA insensitive 5 RT-PCR Reverse-transcriptase polymerase chain reaction LEA Late embryogenesis abundant genes WT Wild type Introduction Rice that provides staple food for half of the world popula-tion relies heavily on water availability for cultivation. As the shortage of fresh water for agricultural irrigation wors- Genes that were annotated as ‘bZIP’ in the various databases (TAIR, MAtDB, EMBL/GenBank, (A for ABF/AREB/ABI5, C for CPRF2-like, G for GBF, H for HY5), to protein size (B for big and S for small), or alphabetically. Genes that did not fit in any group were left unclassified at the bottom of the figure.