Mitochondrial retrograde signaling through UCP1-mediated inhibition of the plant oxygen-sensing pathway (Curr Biol)
Plant Science Research WeeklyPlants have a plethora of oxygen requiring enzymes that are essential for survival. Mitochondria require oxygen to create ATP, yet during hypoxia they can alter gene expression in the nucleus through retrograde signaling, which may promote stress tolerance. Barreto et al. recently delineated a novel…
GWAS on multiple traits identifies mitochondrial ACONITASE3 as important for acclimation to submergence stress (Plant Physiol.)
Plant Science Research WeeklyClimate change is affecting the frequency and intensity of extreme climatic events such as floods, reducing crop production severely. Submergence might lead to a lack of O2, light, and carbon dioxide, having an impact on the carbohydrate content and ATP synthesis. In this work, Xiangxiang et al. characterise…
Swapping citrate for malate by plant mitochondria
The Plant Cell: In a NutshellLee et al. unravel a mitochondrial transporter responsible for selectively exporting citrate in exchange for malate. Plant Cell (2021)
By Chun Pong Leea, Marlene Elsässerb, Philippe Fuchsb,c, Ricarda Fenskea, Markus Schwarzländerb, A. Harvey Millara
aARC Centre of Excellence in Plant Energy Biology,…
What plant mitochondria eat: The route of pyruvate to respiration in Arabidopsis
The Plant Cell: In a NutshellLe et al. demonstrate that mitochondria get pyruvate three different ways.
Plant Cell
By X.H. Le, C.P. Lee and A.H. Millar
The University of Western Australia
Perth, Australia
Background: Plants photosynthesise and make starch in the day so that at night they can extract energy from…