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Global Analysis of DELLA Direct Targets in Early Gibberellin Signaling in Arabidopsis[W]
TLDR
This study reveals that DELLA proteins play two important roles in GA signaling: (1) they help establish GA homeostasis by direct feedback regulation on the expression of GA biosynthetic and GA receptor genes, and (2) they promote theexpression of downstream negative components that are putative transcription factors/regulators or ubiquitin E2/E3 enzymes. Expand
Biochemical analyses of indole-3-acetaldoxime-dependent auxin biosynthesis in Arabidopsis
TLDR
Biochemical evidence indicates that IAOx-dependent IAA biosynthesis, which involves IAM and IAN as intermediates, is not a common but a species-specific pathway in plants; thus I AA biosynthesis may differ among plant species. Expand
Autophagy Negatively Regulates Cell Death by Controlling NPR1-Dependent Salicylic Acid Signaling during Senescence and the Innate Immune Response in Arabidopsis[W][OA]
TLDR
A conserved requirement for salicylic acid (SA) signaling for senescence and immunity-related programmed cell death phenomena in autophagy-defective mutants (atg mutants) is demonstrated and it is shown that autophagic is induced by the SA agonist. Expand
The Gibberellic Acid Signaling Repressor RGL2 Inhibits Arabidopsis Seed Germination by Stimulating Abscisic Acid Synthesis and ABI5 Activity[W]
TLDR
Data support the notion that ABI5 acts as the final common repressor of germination in response to changes in ABA and GA levels, and could be recapitulated by the addition of a SnRK2 protein kinase to the A BI5 overexpression line. Expand
High Temperature-Induced Abscisic Acid Biosynthesis and Its Role in the Inhibition of Gibberellin Action in Arabidopsis Seeds12[C][W][OA]
TLDR
It is concluded that high temperature stimulates ABA synthesis and represses GA synthesis and signaling through the action of ABA in Arabidopsis seeds. Expand
Antagonistic Interaction between Systemic Acquired Resistance and the Abscisic Acid–Mediated Abiotic Stress Response in Arabidopsis[W]
TLDR
Treatment with abscisic acid (ABA) suppresses the induction of SAR in Arabidopsis by inhibiting the pathway both upstream and downstream of SA, independently of the jasmonic acid/ethylene-mediated signaling pathway. Expand
The Arabidopsis Abscisic Acid Catabolic Gene CYP707A2 Plays a Key Role in Nitrate Control of Seed Dormancy1[W]
TLDR
The data underline the central role of the CYP707A2 gene in the nitrate-mediated control of ABA levels during seed development and germination and indicate that the cyp707a2-1 mutant was less sensitive to exogenous nitrate for breaking seed dormancy. Expand
Novel Plant Immune-Priming Compounds Identified via High-Throughput Chemical Screening Target Salicylic Acid Glucosyltransferases in Arabidopsis[W][OA]
TLDR
The results demonstrate that manipulation of the active free SA pool via SA-inactivating enzymes can be a useful strategy for fortifying plant disease resistance and may identify useful crop protectants. Expand
Methylation of Gibberellins by Arabidopsis GAMT1 and GAMT2[W]
TLDR
It is shown that GAMT1 expression is also localized mostly to seed, suggesting a role in seed development and suggesting that the mature mutant seeds contained higher levels of active GAs than wild-type seeds. Expand
The microRNA miR393 re-directs secondary metabolite biosynthesis away from camalexin and towards glucosinolates.
TLDR
It is proposed that miR393 levels can fine-tune plant defences and prioritize resources and prevent suppression of SA levels by auxin, and stabilizes ARF1 and ARF9 in inactive complexes. Expand
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