We often think about how the soil environment influences plants, but two new papers focus on how plants influence the soil environment (through abiotic and biotic effects), in turn affecting other plants. These plant-soil feedbacks (PSFs) can be negative (resource depletion, natural enemy accumulation) or positive (resource deposition, mutualist accumulation). Bennett et al. summarize these […]
Plant cells have polarity, with the distribution of the auxin transporter protein PIN2 being a well-described example. Glanc et al. investigated how polarity is re-established following cell division. The authors showed that during cytokinesis, protein trafficking is directed towards the central cell plate (site of the new cell wall), but afterwards PIN2 relocalizes to its […]
Vegetative shade affects the ratio of red (R) and far-red (FR) light; relative to sunlight, the R/FR ratio is decreased due to absorbance of photosynthetically-active R light by other leaves. Low R/FR ratios cause increased elongation of shaded plant stems and petioles, as the plants strive to raise their photosynthetic tissues above those of their […]
This paper is kind of fun because it explores plant leaf and petal shape from an engineering perspective, identifying “fundamental mechanistic insights into how nature invokes mechanics in the evolution of commonly found shapes in plant organs by differential growth.” For each organ, the authors empirically determine growth strain profiles and the parameters β and […]
I think most scientists are occasionally exasperated when confronted with statements that clearly contradict what we know to be true, whether the topic is climate change, vaccine safety or biotechnology. Iyengar and Massey argue that the persistence of these flawed ideas is not due to a lack of positive communication, but rather “from the widespread dissemination […]
In plants, like people, having an overactive immune response is just as bad as having an underactive one. R genes in plants are key immune components that need to be kept quiet until needed. Previous studies have shown that miRNAs are involved in suppressing R gene expression, in a process that is amplified by phased […]
Grafting is an ancient technology and still extremely important in horticulture and food production, including grapes for wine. Although much is known about what scion/shoot combinations work, less is known at the molecular and cellular level about successful grafts. How do two genetically different tissues interact? They must dedifferentiate and then reform as a new […]
Congratulations to everyone involved in the launch of the new journal Plants, People, Planet, “… a new cross-disciplinary Open Access journal from the New Phytologist Trust focusing on the interface between plants and society.” I’m sure that we’ll be seeing some terrific articles in this new journal, including some good for teaching. In the first […]
New journal launched – Plants, People, Planet Congratulations to everyone involved in the launch of the new journal Plants, People, Planet, “… a new cross-disciplinary Open Access journal from the New Phytologist Trust focusing on the interface between plants and society.” I’m sure that we’ll be seeing some terrific articles in this new journal, including […]