Cytokinin-induced cell cycle regulates MET1 activity during shoot regeneration ($)
Blog, Plant Science Research Weekly, Research, Research BlogThe capacity of plants to regenerate new shoots from differentiated tissue – a process called de novo shoot regeneration – confers plasticity to plant development and has also important agricultural applications. Previous studies revealed that DNA METHYLTRANSFERASE1 (MET1) inhibits shoot regeneration…
Review: Outer, inner and planar polarity in the Arabidopsis root
Blog, Plant Science Research Weekly, Research, Research BlogDespite vast differences across all living organisms, most eukaryotes display some form of cellular polarity which enables them to carry out specialized functions. The coordination of cell polarity within a single tissue layer is known as planar polarity. Nakamura and Grebe highlight the unique execution…
An even pattern of xylan substitution is critical for interaction with cellulose in plant cell walls
Blog, Plant Science Research Weekly, Research, Research BlogPlant cell wall architecture is a very complex specific design and the interaction between xylan and cellulose is believed to be that way too. Grantham et al. reveal the details of the association between xylan and cellulose using mass spectrometry and NMR in Arabidopsis. ESKIMO1 (ESK1) is a xylan-specific…
Update on autophagy: Dynamics of autophagosome formation
Blog, Plant Physiology, Plant Physiology: Updates, Research, Research BlogBy Junmarie Soto-Burgos, Xiao-Hong Zhuang, Liwen Jiang, and Diane C. Bassham
Autophagy, literally defined as “self-eating”, functions as a degradation process by recycling cytoplasmic contents under stress conditions or during development. Upon activation of autophagy, a membrane structure known…
An Ion Channel Active in Plant Drought Response
Research, The Plant Cell, The Plant Cell: In a NutshellEisenach et al. discover A new ion channel of the plant vacuole helps plants react to drought https://doi.org/10.1105/tpc.17.00452
By Cornelia Eisenach
Background: Stomata are small pores on plant surfaces that facilitate diffusion of CO2, O2 and water vapor between plant and atmosphere. During…
Keeping Walls on Track
Research, The Plant Cell, The Plant Cell: In a NutshellSchneider et al. explore how secondary cell walls are made. The Plant Cell 2017. https://doi.org/10.1105/tpc.17.00309
Background: Plant cells are surrounded by robust cell walls that function as dynamic extracellular skeletons and protect plants against their environment. The cell walls make up…
How Meiotic Chromosomes Cluster into a “Bouquet”
Research, The Plant Cell, The Plant Cell: In a NutshellZhang et al. explore the behavior of chromosomes during meiosis. The Plant Cell (2017). https://doi.org/10.1105/tpc.17.00287
By Fanfan Zhang
Background: In meiosis, plants, animals, and fungi reduce their chromosome numbers by half to form gametes (sperm and eggs) that can fuse to form a cell…
Space-Time Continuum of Gene Expression in Lateral Root Development
Research, The Plant Cell, The Plant Cell: In a NutshellWalker et al. explore how the environment shapes root architecture. The Plant Cell 2017. https://doi.org/10.1105/tpc.16.00961
By Liam Walker
Background: To acquire nutrients and anchor themselves, plant roots spread both vertically and horizontally in soil. Plants typically have a primary root…
Update: Peroxisome function, biogenesis, and dynamics in plants
Blog, Plant Science Research Weekly, Research, Research BlogPeroxisomes are endoplasmic reticulum-derived membrane-enclosed organelles in which many oxidative enzymatic reactions are compartmentalized. These reactions and their products contribute to energy production, detoxification, and signaling. Kao et al. review our understanding of the plant peroxisome,…