Soft X-ray imaging is a promising new technology that can be used to measure elemental compositions of living cells. By adjusting the energy (wavelength) of the incident X-rays, it is possible to specifically measure C or N, which have different photo-absorption edges. Teramoto et al. demonstrate the power of soft X-ray microscopy (SXM) by imaging […]
As iron is often limiting in the environment, plants use many strategies to support iron uptake, including secretion of small molecules such as coumarins that can help to mobilize iron from the soil. Tsai et al. examined the role of a gene involved in fraxetin (7,8-dihydroxy-6-methoxycoumarin) production on iron uptake in Arabidopsis. SH8 expression is […]
Grain yield is determined by both grain number and grain weight. There is often a trade-off between these traits; for example, increased grain number is often associated with decreased grain weight. Using a forward-genetic approach, Guo et al. have identified a rice gene, GRAIN SIZE AND NUMBER1 (GSN1) that affects these traits. GSN1 encodes a […]
The angle at which a rice leaf bends affects its ability to intercept light and also the density at which the plants can be sown. Previous work has shown that brassinosteroid hormones and the BRASSINOSTEROID UPREGULATED1 (BU1) gene affect leaf angle. Ruan, Guo, Xu et al. investigated the role of phosphate (Pi) availability in leaf […]
Review: The origin and evolution of mycorrhizal symbioses Many fungi are pathogens that kill or weaken their plant hosts. However, there are also many species that form beneficial relationships with plants, algae, and cyanobacteria. One of these mutualisms is the mycorrhizal association between a fungus and a plant root, where the fungus provides the plant […]
André N. Müller, featured first author of The Biotrophic Development of Ustilago maydis Studied by RNA-Seq Analysis Current Position: Project Manager, GSK Vaccines GmbH, Marburg Education: PhD in Molecular Phytopathology, Department of Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany. Diploma in Biology at Technical University Kaiserslautern, Germany. Non-scientific Interests: Cooking, reading, mountain […]
By Johanna Krahmer, Ashwin Ganpudi, Ammad Abbas, Andrés Romanowski, and Karen J. Halliday Plants continuously monitor fluctuations in their environment and actively adjust their metabolism to cope with variations in light and carbon resource availability. However, the links between photoreceptor signaling pathways and central metabolism are poorly understood. Emerging evidence suggests that phytochrome photoreceptor signaling […]
By Daniel Cosgrove The primary wall of a growing cell is a versatile, subtle, and dynamic structure, with unique properties and functions in the life of the plant (Burton et al., 2010). When a cell grows, its wall stretches irreversibly as the cell enlarges in volume. Cells can start and stop this process quickly, in […]
By Matthew J. Paul, Asier Gonzalez-Uriarte, Cara A. Griffiths, and Keywan Hassani-Pak Significant increases in global food security require improving crop yields in favourable and poor conditions alike. However, it is challenging to increase both the crop yield potential and yield resilience simultaneously, since the mechanisms that determine productivity and stress tolerance are typically inversely […]