Recent Posts

High productivity in hybrid-poplar plantations without isoprene emission to the atmosphere ($) (PNAS)

Many trees emit isoprene (C5H8, a small volatile carbon compound) during hot weather, and isoprenes have been shown to help trees tolerate short bursts of high temperatures (heat flecks). Isoprenes are not themselves harmful, but are reactive and can lead to the production of high levels of ground-level…

Review: Methods to visualize elements in plants (Plant Physiol)

Plant Science Research Weekly: February 14 February 14, 2020/in Blog, WWR Full Post /by Mary Williams Review: Deep learning for plant genomics and crop improvement One of the goals of plant science is to use the molecular phenotype (genome, transcriptome, proteome) to predict the…

Insect herbivory antagonizes leaf cooling responses to elevated temperature in tomato (PNAS)

Plants have strategies to cool themselves when the temperature is hot. These include increasing their rate of transpirational cooling through stomatal opening and raising their leaves, which can enhance air flow. Previous studies have shown a role for the heat shock proteins (HSPs) and their cochaperone…

Monitoring and mitigation of toxic heavy metals and arsenic accumulation in food crops: A case study of an urban community garden (Plant Direct)

Urban gardens are a great way to introduce people to plant science, to bring fresh food into areas underserved by grocery stores (“food deserts”), and can promote a sense of community. But as Cooper et al. observe, many potential sites can be contaminated with heavy metals (lead, cadmium) and metalloids…

MicroRNA397b-LACCASE2 module regulates root lignification under water- and phosphate deficiency ($) (Plant Physiol)

Water and nutrient availability are a major limiting factors for plant productivity. Plant have evolved a series of complex adaptive features that help them to survive in the hostile environment. Upregulation of lignin biosynthetic genes in roots under salt and water stress have been reported in some…

A membrane-bound cellulase in time and space

Nagashima et al. investigate molecular mechanisms for the sorting of a membrane protein KORRIGAN 1 (KOR1) in plant cells. Plant Cell https://doi.org/10.1105/tpc.19.00714 By Y. Nagashima1, and H. Koiwa1,2 1Vegetable and Fruit Improvement Center and Department of Horticultural Sciences, Texas…

Over‐accumulation of abscisic acid in transgenic tomato plants increases the risk of hydraulic failure (Plant Cell Environ.)

ABA enhances stomatal closure and so decreases transpiration. Several studies have shown that increasing ABA levels can increase water-use efficiency, so this strategy has been investigated with the goal of obtaining “more crop per drop”. Lamarque et al. investigated physiological and hydraulic effects…

Review: Molecular bases of responses to abiotic stress in trees (J. Exp. Bot)

Much of our understanding of abiotic stress response comes from studies on short-lived annual plants, for good reasons: they are small and easy to study, their short-generation time makes them amenable to genetic studies, and most of our food comes from annual plants. Trees are more difficult to study,…

Review: Pervasive human-driven decline of life on Earth points to the need for transformative change (Science)

Reading this review by Diaz et al. feels a bit like reading a bad report card. Although we know we’re failing in our role as Earth’s stewards, we don’t always want to be reminded of this. But, in this case we need to read and act on the suggestions for improvement. The authors review the findings…