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Nov 06, 2022
News on cold priming: It reduces pathogen susceptibility
Priming for 24 h at 4 °C reduces the pathogen susceptibiltiy of Arabidopsis for days in an EDS1-independent manner.
Jul 18, 2022
News on tAPX
Post-cold accumulation of thylakoid ascorbate peroxidase decreases NDH-CET activity.
Jul 09, 2022
Cold priming mitigates oxylipin biosynthesis and signalling
Cold priming effects on the biosynthesis of the jasmonic acid precursor OPDA mediate the triggering response to cold and high light.
Nov 30, 2021
Cold priming uncouples light- and cold-regulation of gene expression
Since cold and high light both cause photooxidative stress, many genes are co-regulated by light and cold. After cold-priming, gene regulation is uncoupled for days. We conclude that the priming memory modifies signalling responses in a trigger-specific manner.
Jun 28, 2020
News on cold priming: It´s controlled at the thylakoid membrane!
Feb 28, 2019
Review: "Preparing plants for improved cold tolerance by priming" is published
Cold is a major stressor, which limits plant growth and development in many parts of the world, especially in the temperate climate zones. A large number of experimental studies has demonstrated that not only acclimation and entrainment but also the experience of single short stress events of various abiotic or biotic kinds (priming stress) can improve the tolerance of plants to chilling temperatures. This process, called priming, depends on a stress “memory”. It does not change cold sensitivity per se but beneficially modifies the response to cold and can last for days, months, or even longer. Elicitor factors and antagonists accumulate due to increased biosynthesis or decreased degradation either during or after the priming stimulus. Comparison of priming studies investigating improved tolerance to chilling temperatures highlighted key regulatory functions of ROS/RNS and antioxidant enzymes, plant hormones, especially jasmonates, salicylates, and abscisic acid, and signalling metabolites, such as β‐ and γ‐aminobutyric acid (BABA and GABA) and melatonin. We conclude that these elicitors and antagonists modify local and systemic cold tolerance by integration into cold‐induced signalling cascades.
Feb 28, 2019
RCD1 (radical incuded cell death 1) supports transcriptional activation of genes for chloroplast antioxidant enzymes
Apr 27, 2014
News in chloroplast-to-nucleus-signaling
Expression of SIG5 is under control of photoreceptors and signals originating at photosystem I
Apr 27, 2014