Synaptic vesicle (SV) release is spatially and temporally regulated by a network of proteins that form the presynaptic active zone (AZ). The hallmark of most AZs is an electron-dense projection (DP) surrounded by SVs. Despite their importance for our understanding of triggered SV release, high-resolution analyses of DP structures are limited. Using electron microscopy, we show that DPs at Caeno...

Biological control of sugarcane smut (Ustilago scitaminea Syd.) using Trichoderma isolates is one the untapped potentials in Ethiopian plantations. To this end, study was carried ...

SNF2 chromatin-remodeling ATPases play an important role in ensuring proper development in higher eukaryotes by controlling accessibility of cis-regulatory DNA regions to transcription factors and to the transcriptional machinery. However, the biological targets controlled by these ATPases are largely unknown. Using genetic and molecular analyses we have identified WUSCHEL (WUS) as a biological...

A few readers of my last two columns may have suspected that something was afoot. Well the explanation is quite simple. I wanted to set the record straight. After seven years of labour in the field, 84 columns, I go on to a well-deserved rest. I find it hard to believe, but there must be some graduate students who began reading me when they started research and who have got their PhDs by now. I...

Den politiske debat i Rusland har mange år haft et element om en kommende verdensorden. Der generelt været enighed om, at tilstanden efter ophøret af den kolde krig var uholdbar, og noget andet mere blivende ville erstatte påståede USA-ledede orden. Denne er blevet akut Ruslands invasion Ukraine 24. februar 2022. præsident Vladimir Putin invasionen rakt ud til især Det globale Syd, han ved rækk...

Chromatin remodeling is emerging as a central mechanism for patterning and differentiation in multicellular eukaryotes. SWI/SNF chromatin remodeling ATPases are conserved in the animal and plant kingdom and regulate transcriptional programs in response to endogenous and exogenous cues. In contrast with their metazoan orthologs, null mutants in two Arabidopsis thaliana SWI/SNF ATPases, BRAHMA (B...

Future Web applications will be more collaborative, and will use the standard and ubiquitous Internet protocols. Independently developed applications will have to be integrated seamlessly despite their heterogeneous origins. Heterogeneity stems from programming languages, development environments, operating systems, and host devices. It can be addressed by providing means of composing (or reusi...