Entries by Magdalena Julkowska

Rapid changes: ABA-independent SnRK2s target mRNA decay

Magda Julkowska Magdalena.Julkowska@kaust.edu.sa   In response to stress, secondary messengers and rapid and reversible protein phosphorylation contribute to signaling cascades that generate unique signatures indicating stress type and severity. Activation of stress-induced signaling cascades leads to changes in the transcriptome and ultimately to acclimatization to stress conditions. Changes in the transcriptome result not only from […]

Restriction Release: improved maize transformation efficiency

Magdalena M. Julkowska Magdalena.Julkowska@kaust.edu.sa Improvement of crops using traditional breeding is too slow to ensure food production able to sustain the growing human population, especially in the face of climate change (Hickey et al., 2019). Transformation methods for monocot crops depend on the availability of immature embryos and are effective only for a limited number […]

Keep it steamy: improved quantification of the humidity within the leaf

Magdalena M. Julkowska Magdalena.Julkowska@kaust.edu.sa Stomata are the gatekeepers of plant water status, regulating the balance between plant CO2 uptake and water loss. Stomatal conductance (gs) can be estimated by microscopy of wax or plastic leaf surface imprints, but this technique is time consuming and labor intensive. Another method for assessment of gs relies on measurements […]

Pinstatic acid as a dissection tool-kit for transcriptional and non-transcriptional auxin responses

Author:         Magdalena M. Julkowska Affiliation:      Biological and Environmental Sciences and Engineering, King Abdullah University for Science & Technology (KAUST), Thuwal, Saudi Arabia   Auxin is one of the most studied plant hormones, and it comes in various forms. Whereas indole 3-acetic acid (IAA) is the most biologically active among the endogenous auxins, phenylacetic acid […]

Review: Developmental responses to water and salinity in root systems ($) (Annu Rev Cell Biol)

Plants lack organs that are analogous to human ears, eyes or fingertips, yet they can detect changes in their environment. In this review, Dinneny describes how sensing heterogeneities in salt and water leads to changes in root architecture, optimizing soil foraging. The root tip typically follows the water gradient (hydrotropism), while it avoids soil patches […]

Breeding improves wheat productivity under contrasting agrochemical input levels (Nature Biotech.)

Wheat breeding programs are releasing new cultivars almost every year for improved yield potential. But is this intensive breeding not compromising the plant performance under adverse environmental conditions? Voss-Fels et al. studied the elite cultivars of winter wheat released during the last 50 years, across multiple field trials with and without application of fertilizer, best-practice […]

Plant Science Research Weekly: June 21st

Guest editor: Magdalena Julkowska Magda is a PostDoc at King Abdullah University for Science and Technology (KAUST, Saudi Arabia) working with Prof. Mark Tester. Her main interests are (1) salt-induced changes in the root-to-shoot ratio in Arabidopsis, (2) study the expression patterns in plants with enhanced sodium accumulation in their roots and (3) development of […]

A chloroplast-localized mitochondrial calcium uniporter transduces osmotic stress in Arabidopsis (Nature Plants)

Calcium and chloroplasts are both at the heart of the signal transduction during environmental stress. Teardo et al. studied whether the chloroplast-localized mitochondrial calcium uniporter has a role in stress signaling. The group identified 6 homologs of mitochondrial calcium uniporter (MCU) in Arabidopsis, but only one (cMCU) was carrying a clear chloroplast localization signature. The […]

Paleogenomic insights into the origins of French grapevine diversity (Nature Plants)

The grapevine has it that some living varieties of Vitis vinifera were grown by the Romans, and maintained for over two millennia. Ramos-Madrigal et al. used target-enriched genome-wide sequencing for 28 grape seeds recovered from archeological sites dating to the Iron Age, Roman period and Middle Ages. The meta-analysis revealed that these archeological grapes were […]