Recent Posts

Intricacies of Transcription Elongation

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Antosz et al. provide insight into the complex process of transcription elongation by RNA polymerase II http://www.plantcell.org/content/29/4/854.abstract The genetic blueprint for the production of proteins is stored in the DNA of a plant cell. In a first step, the enzyme RNA polymerase II generates…

How Plants Sense Cold and Activate Cold Tolerance

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Kidokoro et al. investigate how plants sense cold and activate cold tolerance http://www.plantcell.org/content/29/4/760.abstract. Cold stress can be just as lethal as heat stress. When a cell freezes, the water inside it expands as it turns to ice. This can cause the cell membrane to rupture and lead…

The Big Idea: Phenotyping

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Phenotyping, the process of measuring and analyzing observable plant characteristics, is a term used frequently in the College of Agriculture these days—and a technique that is now automated for field research at Purdue. The Indiana Corn and Soybean Innovation Center, a 25,500-square-foot facility…

What We’re Reading: June 2nd

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For the remainder of June and July, several Plantae Fellows will take turns editing the What We’re Reading series. The Plantae Fellows were selected for their interest in communicating science, and they are looking forward to wearing the Editor hat and sharing their selections with you in the coming…

Rapid cytosolic calcium elevations in Arabidopsis during aphid feeding

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Calcium signaling is a common plant response to many different stimuli. Vincent et al. used a fluorescent calcium reporter, GCaMP3, to record calcium responses in Arabidopsis to feeding by aphids (specifically, the green peach aphid Myzus persicae). Through analysis of various mutants, key components…

The pPSU plasmids for generating DNA molecular weight markers

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Anyone who is trying to manage a laboratory on a budget will enjoy reading about the efforts of Henrici et al., who have designed a pair of plasmids that together can be digested with one of two restriction enzymes to produce either 100-bp or 1000-bp DNA molecular weight markers. As the authors report,…

Monoterpenes support systemic acquired resistance within and between plants ($)

Pathogen perception leads to local and systemic immune responses including systemic acquired resistance (SAR). The nature of the mobile signals and their movements remain uncertain. Riedlmeier et al. demonstrated that certain monoterpenes including α- and β-pinene accumulate in SAR-inducing conditions…

Natural allelic variation of FRO2 modulates Arabidopsis root growth under iron deficiency

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Iron is an essential nutrient that plants assimilate from the soil. Moderate iron deficiency induces an increase in primary root length and lateral root production. Satbhai et al. examined natural variation of root responses and showed a correlation between root length and allelic variation at the FRO2…

Bypassing negative epistasis on yield in tomato imposed by a domestication gene

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Tomatoes normally grow as multiple flowers along a single branch. Soyk et al. explored a large collection of wild and domesticated accessions to identify those with branched inflorescences, which should be able to produce more fruit per plant. They identified a few related branchy mutants which they…