alexa Sugar signalling and antioxidant network connections in plant cells.


Pharmaceutical Analytical Chemistry

Author(s): BolouriMoghaddam MR, Le Roy K, Xiang L, Rolland F, Van den Ende W

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Abstract Sugars play important roles as both nutrients and regulatory molecules throughout plant life. Sugar metabolism and signalling function in an intricate network with numerous hormones and reactive oxygen species (ROS) production, signalling and scavenging systems. Although hexokinase is well known to fulfil a crucial role in glucose sensing processes, a scenario is emerging in which the catalytic activity of mitochondria-associated hexokinase regulates glucose-6-phosphate and ROS levels, stimulating antioxidant defence mechanisms and the synthesis of phenolic compounds. As a new concept, it can be hypothesized that the synergistic interaction of sugars (or sugar-like compounds) and phenolic compounds forms part of an integrated redox system, quenching ROS and contributing to stress tolerance, especially in tissues or organelles with high soluble sugar concentrations. This article was published in FEBS J and referenced in Pharmaceutical Analytical Chemistry

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