Archive: January, 2018

Transposable elements (TEs) are a major component of eukaryotic genomes. Their activity is silenced by epigenetic mechanisms such as chromatin modifications and DNA methylation in order to avoid deleterious effects on host genome stability. Nevertheless, how TEs overcome silencing by the host and propagate…

Guest Editor:  Alecia Biel Alecia is a graduate student at The Ohio State University in the US and has been a Plantae Fellow since September 2017.  Her research focuses on elucidating hormone signaling pathways and the role of the nucleus during this process, particularly throughout plant abiotic…

Pollen is an essential component in angiosperm reproduction. Pollen grains are surrounded by a highly resistant wall called exine which enables survival of the male gametes in adverse environmental conditions. Suzuki et al. examined the contribution of an Arabinogalactan β-(1,3)-Galactosyltransferase…

Phytopthora sojae poses a serious threat to soybean production world-wide. This oomycete pathogen has a wide arsenal of effector proteins, some of which have been functionally characterized for their virulence role. Huang et al. characterized and demonstrated the functional role of an avirulence effector…

All phytopathogens encode for a toolbox of secreted proteins called ‘effectors’ that promote disease formation in the best possible way. Effectors are either acting in the apoplastic space or are translocated to the host cell to target diverse processes and modulate the host using enzymatic activities.…

Successful fertilization in plants requires sperm cells (SCs) to be carried along the growing pollen tube (PT) until reaching the female gametophyte where the PT then bursts to release the SCs. One challenge PTs must overcome in order to achieve fertilization is deciding to rupture or not to rupture.…

Yan et al. searched for proteins that regulate the delivery of the micronutrient copper to flowers to ensure successful reproduction https://doi.org/10.1105/tpc.17.00363 By Jiapei Yan, Ju-Chen Chia, and Olena Vatamaniuk Background: Global food security and the demand for high-yielding grain crops…

Fukudome et al. explore the significance of Pol II C-terminal phosphorylation https://doi.org/10.1105/tpc.17.00331 By Akihito Fukudome and Hisashi Koiwa Background: In animals and plants, gene expression begins with an enzyme called RNA polymerase II (Pol II), which produces ribonucleic acid (RNA)…