Abscisinsyrauppfattning och signalering: strukturella

‪Mats X. Andersson‬ - ‪Google Scholar‬

As a solution provider, we also Si no has usado este servicio, puedes visitar aquí, un demo del sistema. ¿Has olvidado tu password? No hay problema, puedes recuperarlo haciendo click aquí Although ABI5 is generally recognized as a transcription factor that functions in the nucleus, it interacts with RING type E3 ubiquitin ligase KEG, which is localized Arabidopsis, polyclonal, antibody, ABI5, ABA INSENSITIVE 5, GIA1, GROWTH- INSENSITIVITY TO ABA 1, Dc3 promoter-binding factor 1, AtDPBF1, La proteína de ABI5, se localiza en cuerpos nucleares junto con AFP1 (ABI FIVEBINDING PORTEIN 1) y, esta, tiene la capacidad de atenuar las señales de ABA 29 May 2020 Without ABA treatment the expression analysis of stress-responsive genes showed that the expressions of ABI3 and ABI5 were lower in CKB3 T- Convergence of Light and ABA signaling on the ABI5 promoter. Artikel i vetenskaplig tidskrift, refereegranskad.

Furthermore, we demonstrated that the ABA signaling component ABI5 directly binds to the pro-moter region of SHB1 during early seed development. Our re-sults thus showed that ABA regulates early seed development by ABI5-regulated SHB1 expression. RESULTS 2020-07-29 2011-07-01 ABA INSENSITIVE 5 (ABI5) is a basic leucine zipper (bZIP) transcription factor which acts in the abscisic acid (ABA) network and is activated in response to abiotic stresses. However, the precise role of barley (Hordeum vulgare) ABI5 in ABA signaling and its function under stress remains elusive. Here, we show that HvABI5 is involved in ABA-dependent regulation of barley response to drought The accumulated ABI5 protein further shows heteromeric interaction with HY5, and thus synergistically activates its own expression. Our findings reveal a novel transcriptional switch, composed of JMJ17–WRKY40 and HY5–ABI5 modules, which regulates the ABA response during seed germination and seedling development in Arabidopsis. ABA and GA can regulate ABI5 activity coordinately during seed germination and early seedling development (Piskurewicz et al., 2008).

In light, ELONGATED HYPOCOTYL5 (HY5) directly binds to G‐box motif (CACGTG) on the promoter of ABI5 and activates its expression.

The HDZip Class I Transcription Factors in - DiVA portal

Recent investigations have unravelled the importance of light–ABA interactions in postgermination development and environmental adaptability of seedlings. 2020-03-02 · Moreover, we observed that on 0.3 μM ABA, growth of abi5 pifq mutant seedlings was more resistant to ABA than that of pifq mutants, but similar to that of abi5 (Figure 4D). These observations indicate that ABI5 is epistatic to PIFs in mediating hypocotyl-negative gravitropism and ABA signaling in darkness.

Convergence of Light and ABA signaling on the ABI5 - GUP

Arabidopsis, polyclonal, antibody, ABI5, ABA INSENSITIVE 5, GIA1, GROWTH-INSENSITIVITY TO ABA 1, Dc3 promoter-binding factor 1, AtDPBF1, GROWTH-INSENSITIVITY TO ABA 1, bZIP transcription factor 39, AtbZIP39 III. ABA puts a brake on light-induced greening of seedlings 765 IV. ABA modulates seedling adaptation to shade and high light 766 V. Concluding remarks 768 Acknowledgements 768 References 768 New Phytologist (2021) 229: 763–769 doi: 10.1111/nph.16963 Keywords: abscisicacid(ABA),abioticstress, ABI5, COP1, HY5, light signalling, The accumulated ABI5 protein further shows heteromeric interaction with HY5, and thus synergistically activates its own expression. Our findings reveal a novel transcriptional switch, composed of JMJ17–WRKY40 and HY5–ABI5 modules, which regulates the ABA response during seed germination and seedling development in Arabidopsis. Se hela listan på frontiersin.org regulation of ABI5 expression represents an integration of light and ABA signaling during seed germination and early seedling development. Accumulating evidence indicates that BBX proteins work in concert with HY5 in regulating photomorphogenesis [14–17,20]. Since HY5 directly activates ABI5 expression, it is interesting to investigate whether BBX proteins are also involved in ABA signaling.

Together, these results establish that SIZ1-dependent sumoylation of ABI5 attenuates ABA signaling. Abscisic acid (ABA) regulates plant development and is crucial for plant responses to biotic and abiotic stresses. Studies have identified the key components of ABA signaling in Arabidopsis ( Arabidopsis thaliana ), some of which regulate ABA responses by the transcriptional regulation of downstream genes. Here, we report the functional identification of rice ( Oryza sativa ) ABI5-Like1 (ABL1 ABA INSENSITIVE 5 (ABI5) is a basic leucine zipper (bZIP) transcription factor which acts in the abscisic acid (ABA) network and is activated in response to abiotic stresses. However, the precise role of barley (Hordeum vulgare) ABI5 in ABA signaling and its function under stress remains elusive. Here, we show that HvABI5 is involved in ABA-dependent regulation of barley response to drought Like ABI5, ABI five binding protein (AFP) mRNA and protein levels are induced by ABA during seed germination.
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Although ABI5 is consistently located in the nucleus, chromosomal immunoprecipitation (ChIP) experiments revealed that ABA increases ABI5 occupancy on the AtEm6 promoter.

ABA regulates photorespiration under low CO 2 conditions through ABI5. ABA induces gene expression and plays a prominent role in establishment of stress tolerance. However, little is known about the relationships of ABA to low CO 2 stress and the simultaneous photorespiration.
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The HDZip Class I Transcription Factors in - DiVA portal

Our findings reveal a novel transcriptional switch, composed of JMJ17-WRKY40 and HY5-ABI5 modules, which regulates the ABA response during seed germination and seedling development in Arabidopsis. Moreover, although ABI5 protein levels were higher in darkness than in the light within 2 h of ABA treatment, we observed an obvious decrease in ABI5 protein levels after prolonged (e.g., 12 h) ABA treatment, whereas in the light ABI5 continued to accumulate within 12 h of ABA treatment (Figure 2B and 2C).

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A Seed Coat Bedding Assay to Genetically Explore In Vitro

Disruption of ABI5 increases Arabidopsis ABA‐insensitivity and decreases the expression of many ABA‐responsive genes (Finkelstein and Lynch, 2000b), whereas ABI5‐overexpressing plants were hypersensitive to ABA during seed germination and early seedling development (Lopez‐Molina et al., 2001). 2019-08-09 · ABF3 and ABI5 are Group A bZIP TFs that are known to be important in abscisic acid (ABA) signaling. However, questions of whether ABF3 regulates ABI5 are still present. In vitro kinase assay results showed that Thr-128, Ser-134, and Thr-451 of ABF3 are calcium-dependent protein kinase phosphorylation sites.