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In addition, ABI5 was shown to directly activate its own expression, whereas BBX21 negatively regulates this activity by directly interacting with ABI5. Together, our study indicates that BBX21 coordinates with HY5 and ABI5 on the ABI5 promoter and that these transcriptional regulators work in concert to integrate light and ABA signaling in Arabidopsis thaliana.
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 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 . ABI5 accumulation is induced by ABA only within a short interval of about 60 h following stratification, during which ABA and ABA‐dependent ABI5 activity are essential to initiate growth arrest of germinated embryos.
26. ABI5 bryts även ned proteolytiskt av RING-fingerprotein Håller på väg, vilket säkerställer en låg nivå av ABI5-produktion i frånvaro av ABA 28, 29 . Dessa fem mutanter betecknas abi1 - abi5 (för ABA-känslig). Motsvarande ABI1- och ABI2- gener kodar PP2Cs 44, 45, 46 (se avsnitt PP2Cs-negativa När miljöfaktorer som temperatur inte är optimala för grodd av frö är ABA-nivåer höga, vilket orsakar produktion av högre nivåer av ett protein som kallas ABI5. As a crucial regulator of ABA signaling, ABSCISIC ACID-INSENSITIVE5 (ABI5) is involved in many aspects of plant growth and development, yet its regulation of anthocyanin biosynthesis has not been elucidated. In this study, we found that MdABI5, the apple homolog of Arabidopsis ABI5, positively regulated ABA-induced anthocyanin biosynthesis. In the abi5-7 mutant, ABA hypersensitivity caused by PYL11 and PYL12 overexpression was totally or partially blocked.
2001-04-10
The Arabidopsis abscisic acid (ABA)-insensitive abi5 mutants have pleiotropic gene expression in wild-type and abi5-1 plants indicates that ABI5 regulates a We used cDNA microarrays to analyze ABA regulated gene expression and the role of ABI5 in seedlings. 310 genes were identified as. ABI5/ABA regulated mutantes con hipersensibilidad al ABA. En plántulas de la línea mutante y sobreexpresora se analizó el transcrito de los factores de transcripción ABI3 y ABI5, 9 Aug 2019 By contrast, the ABA-independent pathway induces expression of a transcription factor gene, DREB2. DREB2 belongs to the DRE BINDING Abscisic acid (ABA) insensitive 5 (ABI5)—a core transcription factor of the ABA signaling pathway—is a basic leucine zipper transcription factor that plays a key Post-translational modifications (PTMs) such as phosphorylation, ubiquitination, and sumoylation play significant roles in regulating abscisic acid (ABA) Using transient gene expression in rice protoplasts, we provide evidence for the functional interactions of ABI5 with ABA signaling effectors VP1 (viviparous 1) 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, 16 Dec 2016 ABA Insensitive 5 (ABI5) is a basic leucine zipper transcription factor that plays a key role in the regulation of seed germination and early At May Institute, we use the principles of ABA to support individuals with autism spectrum disorder (ASD) and their families to: Learn to communicate and interact Our factories have been producing our “Elite” brand product for Local Area Network, including copper, fiber cable and connectivity.
Together, these data suggest that ATHB5 acts as a regulator of seed germination and postgerminative growth downstream of ABI3 and ABI5 in an ABA
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 2009-03-31 The Arabidopsis abscisic acid response gene ABI5 encodes a basic leucine zipper transcription factor. 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 is a basic leucine zipper (bZIP) TF that plays a crucial role in ABA signaling-mediated seed germination, chlorophyll catabolism, leaf senescence, and abiotic stress adaptation (Kanai et al., 2010; Sakuraba et al., 2014; Skubacz et al., 2016; Zhao et al., 2020). ABA Insensitive 5 (ABI5) is a basic leucine zipper transcription factor that plays a key role in the regulation of seed germination and early seedling growth in the presence of ABA and abiotic stresses.
2019-12-02
ABA-responsive through ABI5-dependent signaling (e.g., RD29A, Rd29B, AtEm6, RAB18, ADH1) was hyperinduced by the hormone in siz1 seedlings. abi5–4 suppressed ABA hypersensitivity caused by siz1 (siz1–2 abi5–4), demonstrating an epistatic genetic inter-action between SIZ1 and ABI5. A K391R substitution in ABI5
negative regulator of ABA signaling that promotes ABI5 degradation during seed germination. Over-expression of AFP1 enhances tolerance to ABA and reduces ABI5 accumulation, whereas afp1 mutants are sensitive to ABA and have high levels of ABI5 (Lopez-Molinaetal.,2003).TherearethreeAFP1homologs(i.e. AFP2, AFP3, and AFP4) in the Arabidopsis genome,
ABA-Jhsensitive (ABI)4 and ABIS, have been identi- fied by mutation.
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Sorbo tatbe intifl ®abi5 flägte, fem od) fl)ratio tufcnb, fejc^unbrab femtio. 26. ABI5 bryts även ned proteolytiskt av RING-fingerprotein Håller på väg, vilket säkerställer en låg nivå av ABI5-produktion i frånvaro av ABA 28, 29 .
PLoS Genetics. Vol. 10 (2), p. artikel nr
De GA och ABA signalering vägar är sammanflätade, som ett uttryck för vissa En värdefull strategi för att förstå rollen som vissa aktörer i GA/ABA seed germination by stimulating abscisic acid synthesis and ABI5 activity.
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2001-04-10
2014-02-27 ABI5 accumulation is induced by ABA only within a short interval of about 60 h following stratification, during which ABA and ABA‐dependent ABI5 activity are essential to initiate growth arrest of germinated embryos. The arrested, germinated embryos remain viable but quiescent, and osmotolerant as long as ABA … 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., … 2000-04-01 abi5 was characterized as ABA insensitive in comparison to the wild type during seed germination. The mutation was mapped on 2 chromosome (Finkelstein,1994). Transcriptomic analysis of abi5 mutant indicated the lower level of expression of stress responsive genes. Ubiquitinated. AFP1, KEG and RPN10 mediate its proteasome-dependent degradation. Its stability or degradation plays a central role in abscisic acid response.