Archive: January, 2018

Over the course of a year, Alyssa highlight posted a short biography of a different member of the plant science community, sharing some of the highlights of different disciplines of our beloved plant research. First up is Norman Borlaug, a name familiar to most people who have been around the plant…

Approximately half of all ethylene-responsive genes are downregulated in the presence in ethylene (Chang et al, 2013), but this repression has received relatively little attention compared to the ethylene-mediated activation of expression. The known positive regulators of ethylene signaling include ETHYLENE…

Zhenlin Yang is featured first author of Structure of the Arabidopsis JMJ14-H3K4me3 Complex Provides Insight into the Substrate Specificity of KDM5 Subfamily Histone Demethylases Current Position: PhD Student, Shanghai Center for Plant Stress Biology, Shanghai Institutes for Biological Sciences, Chinese…

Xiangsong Chen is the featured first author of Canonical and Non-canonical Actions of Arabidopsis Histone Deacetylases in Ribosomal RNA Processing Current Position: Postdoctoral fellow in Wisconsin Institute for Discovery, University of Wisconsin-Madison Education: PhD in National Key Laboratory…

Histones undergo myriad covalent modifications - more than 100 types have been identified in the 50+ years since Allfrey, Faulkner, and Mirsky (1964) found that increased histone acetylation was associated with genomic regions of active transcription (reviewed in Zentner and Henikoff, 2013). Enzymes…

Roots grow into new regions of the soil in their constant quest for water and dissolved minerals. This crucial task is made possible by the root meristem and stem cell niche, where neatly arranged stem cells quickly divide beneath a protective root cap. Stem cells give rise to transit amplifying cells,…

Polycomb-group (PcG) proteins are part of an epigenetic memory system that regulates global gene expression throughout development in multicellular eukaryotes (Butenko and Ohad, 2011). Sophisticated mechanisms recruit high molecular weight complexes of PcG proteins to specific targets in the genome.…

In plants, the balance between stem cell renewal and loss is carefully maintained by intricate regulatory networks. Although the root and shoot apical meristems can in principle continue to grow and self-renew indefinitely, the floral meristem is terminated once flower formation is completed. The precise…