Detlef Weigel

TL;DR: Using a system based on the silencing of the CH42 gene, the mobility of silencing signals initiated in phloem companion cells by artificial microRNAs (miRNA) and trans-acting siRNA (tasiRNA) that have the same primary sequence are tracked, indicating that biogenesis can determine the non-autonomous effects of sRNAs.

TL;DR: The channels that connect plant cells are called plasmodesmata (PD), and their investigation offers tantalizing clues as to how plant cells may use them to communicate with each other and to coordinate development.

TL;DR: An integrative meta-analysis of 27 transcription factor profiling experiments used to examine the organization and mechanisms underlying transcription factor regulation on a genome-wide scale provides several lines of evidence that TF binding at plant HOT regions is functional, in contrast to that in animals, and not merely the result of accessible chromatin.

TL;DR: The results demonstrate that there is a trend toward anticorrelated expression of cis-NAT pairs in Arabidopsis, but currently available data do not produce a strong signature of small RNA-mediated silencing for this process.

TL;DR: This work confirms experimentally that natural PHYB polymorphisms cause differential plant responses to light and suggests that photoreceptors may be a common target of natural selection.