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.
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• The flavonol quercetin regulates the ABA signaling network. • The mutual regulation of ABA and flavonol signaling is an ancestral trait of land plants. • The flavonol-phytohormone relationship is at the core of land plant evolution. The expression of ABI5 is upregulated by ABI3, and ABI3 itself can also directly regulate the expression of key negative regulators involved in the seed-to-seedling transition 42. These results Seed germination and subsequent seedling establishment are important developmental processes that undergo extremely complex changes of physiological status and are precisely regulated at transcriptional and translational levels.
While a family of SUCROSE NONFERMENTING1-related protein kinase2s (SnRK2s) is responsible for [ABA][1]-induced phosphorylation and stabilization of ABI5, the phosphatase(s) responsible for 2016-04-14 · Background Being sessile organisms, plants are often exposed to a wide array of abiotic and biotic stresses. Abiotic stress conditions include drought, heat, cold and salinity, whereas biotic stress arises mainly from bacteria, fungi, viruses, nematodes and insects. To adapt to such adverse situations, plants have evolved well-developed mechanisms that help to perceive the stress signal and CLARO Cajamarca Distribuidor ABI5, Cajamarca. 7 likes.
2019-03-01 · In turn, ABA promotes the binding of HY5 to ABI5, and transgenic plants overexpressing ABI5 display shorter hypocotyls, indicating that ABI5 enhances light responses. HY5 is a highly conserved central regulator of photo-morphogenesis [ 57 , 58 ] that acts downstream of phytochrome-A and UV RESISTANCE LOCUS8 photoreceptors [ 59 , 60 ].
HY5 is a highly conserved central regulator of photo-morphogenesis [ 57 , 58 ] that acts downstream of phytochrome-A and UV RESISTANCE LOCUS8 photoreceptors [ 59 , 60 ]. Our results show that ABI5 plays a key role in seedling growth under photorespiratory conditions by regulating photorespiratory enzyme expression, and ABA regulates plant growth under low CO 2 conditions through modulating ABI5 expression.
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Overexpression of ABI5 resulted in enhanced sensitivity to ABA treatment, and the abi5 mutant was insensitive to ABA treatment during both seed germination and vegetative growth (Finkelstein & Lynch, 2000; Lopez‐Molina et al., 2001; Tezuka et al., 2013). Beyond germination, ABA further inhibits postgermination seedling development, which is often mediated by the transcription factor ABSCISIC ACID INSENSTIVE5 (ABI5) (Chen et al., 2020). Recent investigations have unravelled the importance of light–ABA interactions in postgermination development and environmental adaptability of seedlings.
Abscisic acid‐insensitive 5 (ABI5) is an essential and conserved plant basic leucine zipper transcription factor whose level controls seed germination and postgerminative development. It has been demonstrated that activity of ABI5 is transcriptionally and post‐translationally regulated. Transgenic plants of ABI5-5, ABI5 S42A, ABI5 S145A, and ABI5 S42AS145AT201A were generated by Agrobacterium tumefaciens GV3101-mediated floral infiltration (Clough and Bent, 1998). To overexpress FLC in the abi5-4 mutant background, plasmid p35S::GFP-FLC was transformed into abi5-4 plants. ABI5 functions upstream of miR156 to promote juvenile development by affecting the expression of genes in the miR156‐SPL pathway. Therefore, our study uncovers a new role of ABI5 in vegetative development in plants, and implies a role of ABA signaling in vegetative development in Arabidopsis.
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FOKUS abi 5 ja 3. 148 terms. millaeeerikaa · fokus abi kurs2. 441 terms. millaeeerikaa · fokus abi kurs2.
Regulation and Role of the Arabidopsis Abscisic Acid-Insensitive 5 Gene in Abscisic Acid, Sugar, and Stress Response1 Ine`s M. Brocard, Tim J. Lynch, and Ruth R. Finkelstein* Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara,
2000-04-01
2009-03-31
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.
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While a family of SUCROSE NONFERMENTING1-related protein kinase2s (SnRK2s) is responsible for [ABA][1]-induced phosphorylation and stabilization of ABI5, the phosphatase(s) responsible for 2016-04-14 · Background Being sessile organisms, plants are often exposed to a wide array of abiotic and biotic stresses. Abiotic stress conditions include drought, heat, cold and salinity, whereas biotic stress arises mainly from bacteria, fungi, viruses, nematodes and insects. To adapt to such adverse situations, plants have evolved well-developed mechanisms that help to perceive the stress signal and CLARO Cajamarca Distribuidor ABI5, Cajamarca. 7 likes. Trabajamos en el rubro de las Telecomunicaciones e informática, somos Socios Estratégicos y Distribuidor Autorizado de la Empresa "Claro" en la 24 Mar 2020 Growth arrest phenotype of ppc2 mutant seedlings under low CO2 conditions.