Microtubule reassembly mediated by ethylene in response to salt stress (Plant Physiol.)
Plant Science Research WeeklyIt has been shown previously that cortical microtubule reorganization contributes to adaptation to salt stress; however, the upstream factors that signal this response are not know. Ethylene has been shown to regulate microtubule stability and organization in roots and etiolated hypocotyls. Ethylene…
Review. Rise of a cereal killer: The biology of Magnaporthe oryzae biotrophic growth
Plant Science Research WeeklyThe fungal pathogen Magnaporthe oryzae causes one of the most destructive diseases of rice, destroying around 10-30% of rice production world-wide. The pathogen undergoes different developmental changes and produce specialized infectious structures in order to rapidly proliferate within the host cells.…
Review. Plant cell wall-mediated immunity: cell wall changes trigger disease resistance responses
Plant Science Research WeeklyPlant cell walls have recently been revealed as an essential factor of plant environment monitoring system, much more than just a passive defensive barrier as previously thought. In a recent work, Bacete et al. have reviewed how changes to plant cell wall integrity affect disease resistance. More specifically,…
Ethylene signaling modulates cortical microtubule reassembly in response to salt stress
Plant Science Research WeeklyEthylene is an important mediator during plant adaptation to salt stress. During salt stress, ethylene has been shown to promote microtubule (MT) stability and organization. Dou et al. further examine this pathway using Ag+ to block ethylene signaling in addition to using various mutants. In wildtype…
Ribosome Production Under Surveillance
Research, The Plant Cell, The Plant Cell: In a NutshellMaekawa et al. find a ribosome production monitoring system in Arabidopsis thaliana Plant Cell (2017) https://doi.org/10.1105/tpc.17.00778
By Shugo Maekawa, Tetsuya Ishida, Shuichi Yanagisawa
Background: Protein is produced by ribosomes consisting of a number of proteins and several RNAs (ribosomal…
Structure of KDM5 Gives Insight to Histone Demethylation
Research, The Plant Cell, The Plant Cell: In a NutshellYang et al. reveal a conserved H3K4me3 recognition mechanism shared by both plant and animal KDM5 histone demethylases. The Plant Cell (2017). https://doi.org/10.1105/tpc.17.00666
By Z. Yang, Q. Qiu, X. Cao and J. Du
Background: Histone methylation is a conserved gene regulation mechanism in plants…
Recruiter of Chromatin Regulators
Research, The Plant Cell, The Plant Cell: In a NutshellHohenstatt et al. describe a new recruiter of PcG chromatin regulators affecting flowering and meristem identity in Arabidopsis. https://doi.org/10.1105/tpc.17.00117
By Pawel Mikulski
1) BACKGROUND: Polycomb group (PcG) proteins are key regulatory proteins involved in maintaining the ability (and…
Control of retrograde signaling by rapid turnover of GENOMES UNCOUPLED 1 (Plant Physiol.)
Plant Science Research Weekly, Research, Research BlogCommunication between chloroplast and the nucleus is crucial to accomodate changes in the environment as well as regulate development of the chloroplast itself. Five GENOMES UNCOUPLED (GUN2 to -6) genes were previously described to regulate plastid-to-nucleus communication by affecting the synthesis…
Cell Cycle Regulation by Chlamydomonas Cyclin-Dependent Protein Kinases
Blog, Research, The Plant Cell, The Plant Cell: In BriefCyclins and cyclin-dependent protein kinases (CDKs) are critical regulators of cell cycle progression. Although CDK1 is essential for mitosis in animals and fungi, CDKA, the plant and algal ortholog of CDK1, is not essential for cell division in Arabidopsis (Nowack et al., 2012). By contrast, CDKB is…