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Arabidopsis protein phosphatase 2C ABI1 interacts with type I ACC synthases and is involved in the regulation of ozone-induced ethylene biosynthesis.
Evidence is provided that ABI1 restricts ethylene synthesis by affecting the activity of ACS6, a target of the stress-responsive mitogen-activated protein kinase, MPK6, which is involved in the regulation of ethylene biosynthesis under oxidative stress conditions.
VDAC contributes to mRNA levels in Saccharomyces cerevisiae cells by the intracellular reduction/oxidation state dependent and independent mechanisms
It is demonstrated that depletion of VDAC1 in Saccharomyces cerevisiae cells distinctly affected levels of mRNAs encoding nuclear proteins sensitive to changes of the intracellular redox state including the nuclear transcription factors important for adaptation to the redoxState and proteins involved in communication between mitochondria and the nucleus.
Mitogen-activated protein kinases are carbon dioxide receptors in plants
It is shown that mitogen-activated protein kinases (MAPKs) are plant CO2 receptors, and the identification of stress-responsive MPK4 as a CO2 receptor sheds new light on the integration of various environmental signals in guard cells, setting up MPK 4 as the main hub regulating CO2 availability for photosynthesis.