A new review by Petit et al. skillfully highlights the role of plasmodesmata at the interface between cell biology and whole-plant physiology. These tiny channels that connect plant cells determine what moves from cell-to-cell symplastically, so have roles in just about everything, from developmental patterning and timing to defense. Here the authors cover the dynamic […]
Plasmodesmata are tiny regulated channels that connect adjacent plant cells through which nutrients, signaling molecules and viruses can move. To try to resolve discrepancies between functional and structural studies, Deinum et al. have developed a model for plasmodesmatal permeability that predicts transport data. How do structural variations in plasmodesmata such as neck diameter and the […]
This short Primer by Strullu-Derrien et al. introduces the amazing early vascular plant fossils from the Rhynie chert. The fossils’ high level of detail is a consequence of their being embedded in a glass-like silica matrix, possibly derived from hydrothermal springs. The fossils are approximately 407 million years old, and derive from the earliest stages […]
Plants are photosynthetic autotrophs, meaning they use light energy to feed themselves, with carbon dioxide as a carbon source. Heterotrophs like E. coli require organic carbon. Here, Gleizer et al. have rewired the metabolism of E. coli to make it into a (non-photosynthetic) autotroph, meaning it can build organic molecules using only CO2 as a […]
Previously, growth-promoting endophytic (living within the plant) microbes were isolated from plants (narrowleaf cattail, Typha angustifolia) growing in a nutrient-poor site in an effort to identify new beneficial microbes. One of these identified is the fungus Rhodotorula mucilaginosa. Now, Paul et al. have further characterized this fungus to identify how it benefits its host. They […]
Transgenic plant production often involves an agar-based selection step in which plants that have taken up the introduced DNA (containing a selectable marker) show resistance to a corresponding antibiotic. Typically, putatively transformed seeds are surface sterilized prior to plating so that microbes don’t outgrow the much slower-growing plants. This step is time consuming and can […]
Review. Dare to change, the dynamics behind plasmodesmata-mediated cell-to-cell communication A new review by Petit et al. skillfully highlights the role of plasmodesmata at the interface between cell biology and whole-plant physiology. These tiny channels that connect plant cells determine what moves from cell-to-cell symplastically, so have roles in just about everything, from developmental patterning […]
ASPB, The Plant Cell, Plant Physiology and Plant Direct will be attending PAG2020 (Plant and Animal Genome) in San Diego this coming January 11-15. Come by our booth to learn more about our journals, our educational and digital programs, and the benefits of ASPB membership. Also, you can take the opportunity to meet Ivan Baxter, […]
Comment: Climate tipping points — too risky to bet against This Comment in Nature by Lenton et al. (leaders in climate study and policy) is making headlines, as it points to the serious implications of continuing climate change. It’s worth looking at the article itself, not just the digested version. The authors’ key message is […]