Entries by Hanna Horak

How COR27 and COR28 Promote Hypocotyl Growth: Bind to COP1 And Suppress HY5 Activity

Seedling growth and development rely on the successful integration of information from external signals, such as light and temperature, and endogenous processes, such as the rhythmic ticking of the circadian clock. Together, these signaling pathways tune hypocotyl elongation to allow seedlings to escape from the dark soil and reach the bright soil surface, followed by […]

Back to where it came from: chloroplast expression of both Rubisco subunits helps functional enzyme analysis

Rubisco catalyzes the key carboxylation step in photosynthetic CO2 fixation and is probably the most abundant protein on Earth. The enzyme is famous for inefficient catalysis and the habit of binding oxygen instead of CO2 in one out of every four binding events, leading to photorespiration reactions that release fixed CO2 and consume energy (Sharkey, […]

Defense, fast and slow: activation of different MAPK pathways in response to wounding

In a world full of herbivores and mechanical stresses, the ability to sense and respond to wounding is crucial for plants, as injuries open doors for phytopathogen entry and allow uncontrolled evaporation. Wounding triggers local and systemic defenses that heal injuries, make plants taste unpleasant or toxic for herbivores or attract their natural enemies, and […]