TERMINAL FLOWER1 (TFL1) is a key regulator of flowering time and the development of the inflorescence meristem in Arabidopsis thaliana. TFL1 and FLOWERING LOCUS T (FT) have highly conserved amino acid sequences but opposite functions. For example, FT promotes flowering and TFL1 represses it; FT-overexpressing plants and TFL1 loss-of-function mutants have a similar phenotype production of termin...

Alongside the well-established carbon catabolite repression by glucose and other sugars, acetate causes repression in Aspergillus nidulans. Mutations in creA, encoding the transcriptional repressor involved in glucose repression, also affect acetate repression, but mutations in creB or creC, encoding components of a deubiquitination system, do not. To understand the effects of acetate, we used ...

Translational repression and deadenylation of eukaryotic mRNAs result either in the sequestration of the transcripts in a nontranslatable pool or in their degradation. Removal of the 50 cap structure is a crucial step that commits deadenylated mRNAs to 50-to-30 degradation. Pat1, Edc3 and the DEAD-box protein Dhh1 are evolutionary conserved factors known to participate in both translational rep...

Findings on the effect of repression political participation are mixed and inconclusive. This article addresses this puzzle by introducing conceptualizing ‘responses to repression’ as individuals’ varying willingness risk-taking continuing with activities despite possible threats. We use three-wave panel survey data focus run-up 2013 Iranian presidential elections, during which gradual decline ...

The repression-protest nexus in authoritarian regimes has attracted scholarly attention of contention scholars for a long time. However, studies have generally overlooked pro-government actors’ role contentious dynamics. This article introduces an original event dataset on protests, repression, and rallies Turkey under the rule Justice Development Party during period which authoritarianism incr...

We examine the impact of a new tool for digital repression—a daily tax on social media use in Uganda. Using synthetic control framework and exploiting exogenous timing induced by legislative calendar, we estimate that reduced number georeferenced Twitter users 14 percent. The effects are larger poorer less frequent users. Despite overall decline use, tweets referencing collective action observe...