A Central Role for Genetics in Plant Biology Plant biology as a field of study encompasses a rich plethora of subjects, some of which themselves are their own fields. Maarten Koornneef, in this memoir-style article, describes how genetics in particular shaped his career that saw the rise of Arabidopsis as the lovable poster child of […]
The question “Are plants intelligent?” is raised regularly, with answer often “Well, it depends how you define intelligence.” Another interesting question is whether or not plants have cellular structures that are analogous to those that make up the animal nervous system. Robinson and Draguhn argue that they do not, in this carefully constructed Opinion article. […]
New mechanisms for the production and function of small RNAs continue to be discovered. Previous studies have shown a role for small RNAs in methylation reprogramming. Recently, Long et al. found that the epigenetic reprogramming that takes place in the male reproductive tissues also involves mobile small RNAs. They found that small RNAs are produced […]
Prions were first identified as the infectious protein agents causative of Creutzfeldt-Jakob disease or bovine spongiform encephalopathy (mad cow disease); when individuals eat something containing these prion proteins, the prion proteins induce conformational changes in their brains leading to neurological damage. Prions are more generally and less scarily now known as proteins that can form […]
Review: Convergent evolution of gene regulatory networks underlying plant adaptations The transition from aquatic to terrestrial habitats exposed plants to low water availability, high light, radiation, and other environmental challenges. To overcome these challenges, plants developed morpho-physiological adaptations to tolerate dry environments and make photosynthesis more efficient. A recent work by M. Artur and K. […]
Small RNAs have big effects and can serve to shut down or silence gene expression. Recently, studies have found that small RNAs can contribute to plant defense beyond the boundary of the plant, by being packed into extracellular vesicles (EVs) and delivered to a pathogen. Cai et al. review our current knowledge of small RNAs […]
Covid has turned our focus to human viral pathogens, but the challenges we face from cellular pathogens has not gone away, and is increasingly exacerbated by the development of resistance to antibiotics and other antimicrobials. This fine review by Tiwari et al. provides an overview of how antimicrobials work and mechanisms of resistance, sources of […]
Review. Message in a Bubble: Shuttling small RNAs and proteins between cells and interacting organisms using extracellular vesicles Small RNAs have big effects and can serve to shut down or silence gene expression. Recently, studies have found that small RNAs can contribute to plant defense beyond the boundary of the plant, by being packed into […]
In many plants, epidermal pavement cells lock together through interdigitating lobes, much like the pieces of a jigsaw puzzle. These cells start out as regular squarish cells with straight walls, which then bow out and curve. Here, Belteton et al. investigate how lobes form in cotyledon pavement cells. Using a 3D long-term time-lapse imaging pipeline, […]