Tailored protein stability for stress resilience in light and dark
Plant Science Research WeeklyLight influences essentially all aspects of plant growth and development. Furthermore, plants are likely to adjust their stress responses based on fluctuations in energy availability during the dark-light cycle. Lin et al investigated a hormone downstream component, ETHYLENE RESPONSE FACTOR 1 (ERF1),…
Review: Proteolysis in plant immunity
Plant Science Research WeeklyPlant immunity is beautifully sophisticated with a ever-growing cast of characters. This review by Liu et al. focuses on the contributions of proteolysis (protein degradation), which both activates and suppresses immune responses. The authors structure the review around four key functions of proteolysis:…
An inducible protein degradation system for rapid depletion of target proteins
Plant Science Research WeeklyTargeting a given protein for degradation at a specific time can be very useful when investigating its function in the cellular context. In this paper, Huang et al. present an inducible protein degradation system tailored for plants, named E3-DART. The system is based on the specific interaction between…
The CLP and PREP protease systems coordinate maturation and degradation of the chloroplast proteome in Arabidopsis thaliana (New Phytol.)
Plant Science Research WeeklyThe ATP-dependent CLP chaperone-protease system is a crucial part of the peptidase network required to maintain proteostasis in the Arabidopsis chloroplast. Its substrates include misfolded and aggregated proteins of any size, and it is essential for plant growth and development. PREP1,2 peptidases are…