Tag: Research methods / tools

Introducing DNA or RNA into plant cells remains a challenge. Demirer et al. describe a new method for transient expression studies through delivery of DNA or RNA via carbon nanotubes (CNTs); the size of the nanoparticles is smaller than the exclusion limit for plant cell walls. The authors show that…

The two classic approaches to introducing DNA into a plant’s genome are by harnessing Agrobacterium tumefaciens’ fascinating gene-transfer skill, or by shooting the new DNA into the cell using a “biolistic” (gun) approach. Because of Agrobacterium’s restricted choice of hosts, the biolistic…

Multicellular organisms have different tissues that carry out diverse and specialized functions, and tissue-specific expression is the feature that gives each tissue its specific protein content. Despite its importance, the mechanisms that control spatial patterning is poorly understood. In this work,…

How do you make the invisible visible? It’s a question that crops up again and again in molecular biology. Abscisic acid (ABA) is one of the most important hormones in plants and is essential for survival in suboptimal conditions. Despite this, we have only a basic understanding of where and when this…

Gene knock-outs and overexpression studies are useful indicators of gene function, but can obscure the gene’s distinct cell-type specific functions. Schürholz and Lopez-Salmeron et al. have developed a set of constructs that allow for precise expression of a gene-of-interest in subsets of cells, accompanied…

Plants live by the clock. It helps them to predict day and night as well as upcoming seasons, and to decide when it’s time for reproduction. These predictions depend on oscillating processes that involve gene transcription and protein stability, cycling in a period of, for example, 24 h. Environmental…

Brachypodium distachyon is an annual C3 grass that has become an important model species. Scholthof et al. review the genetic tools and resources (sequences and mutants) as well as robust protocols for transformation that have been developed for it. The presence of wild and perennial species within the…

Genetically-encoded biosensors are produced from genes, and provide a specific readout (usually fluorescence or luminescence) of the amount and distribution of a compund of interest (the analyte). We’ve all see data obtained from genetically encoded biosensors, such as the widely-used cameleon family…