Robert Fluhr
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View article: Everything, everywhere, and all at once: A blueprint for supra‐organization of core facilities
Everything, everywhere, and all at once: A blueprint for supra‐organization of core facilities Open
Core facilities are crucial for cutting‐edge scientific research in academic institutions, yet they place a significant financial burden on budgets. The viability of these facilities can be improved through cross‐institutional collaboratio…
View article: Osmotic stress in roots drives lipoxygenase-dependent plastid remodeling through singlet oxygen production
Osmotic stress in roots drives lipoxygenase-dependent plastid remodeling through singlet oxygen production Open
Osmotic stress, caused by the lack of water or by high salinity, is a common environmental problem in roots. Osmotic stress can be reproducibly simulated with the application of solutions of the high-molecular-weight and impermeable polyet…
View article: Multiple paths of plant host toxicity are associated with the fungal toxin cercosporin
Multiple paths of plant host toxicity are associated with the fungal toxin cercosporin Open
The Cercospora species of fungi are responsible for leaf spot disease affecting many key economic crops. Most of these fungi secrete a toxic photodynamic molecule, cercosporin, that reacts with light and oxygen to produce reactive singlet …
View article: Plastid and cytoplasmic origins of 1O2-mediated transcriptomic responses
Plastid and cytoplasmic origins of 1O2-mediated transcriptomic responses Open
The reactive oxygen species singlet oxygen, 1 O 2 , has an extremely short half-life, yet is intimately involved with stress signalling in the cell. We previously showed that the effects of 1 O 2 on the transcriptome are highly correlated …
View article: PGRL1A redox states alleviate photoinhibition in Arabidopsis during step changes in light intensity
PGRL1A redox states alleviate photoinhibition in Arabidopsis during step changes in light intensity Open
Non-motile plants have evolved regulatory mechanisms to maintain homeostasis for optimal growth. Responses to environmental changes in light are particularly important not only during the diurnal transition from night to day but also to re…
View article: Double‐stranded RNA targeting fungal ergosterol biosynthesis pathway controls <i>Botrytis cinerea</i> and postharvest grey mould
Double‐stranded RNA targeting fungal ergosterol biosynthesis pathway controls <i>Botrytis cinerea</i> and postharvest grey mould Open
Summary Pathogenic fungi cause major postharvest losses. During storage and ripening, fruit becomes highly susceptible to fungi that cause postharvest disease. Fungicides are effective treatments to limit disease. However, due to increased…
View article: Lipoxygenase functions in 1O2 production during root responses to osmotic stress
Lipoxygenase functions in 1O2 production during root responses to osmotic stress Open
Drought induces osmotic stress in roots, a condition simulated by the application of high-molecular-weight polyethylene glycol. Osmotic stress results in the reduction of Arabidopsis thaliana root growth and production of 1O2 from an unkno…
View article: Early Senescence in Older Leaves of Low Nitrate-Grown <i>Atxdh1</i> Uncovers a Role for Purine Catabolism in N Supply
Early Senescence in Older Leaves of Low Nitrate-Grown <i>Atxdh1</i> Uncovers a Role for Purine Catabolism in N Supply Open
The nitrogen (N)-rich ureides allantoin and allantoate, which are products of purine catabolism, play a role in N delivery in Leguminosae. Here, we examined their role as an N source in nonlegume plants using Arabidopsis (Arabidopsis thali…
View article: Singlet Oxygen Plays an Essential Role in the Root’s Response to Osmotic Stress
Singlet Oxygen Plays an Essential Role in the Root’s Response to Osmotic Stress Open
The high osmotic potentials in plants subjected to drought stress can be mimicked by the application of high molecular weight polyethylene glycol. Here, we quantified the effects of exposure to polyethylene glycol on the growth of the main…
View article: Noncanonical interactions between serpin and β‐amylase in barley grain improve β‐amylase activity <i>in vitro</i>
Noncanonical interactions between serpin and β‐amylase in barley grain improve β‐amylase activity <i>in vitro</i> Open
Serpin protease inhibitors and β‐amylase starch hydrolases are very abundant seed proteins in the endosperm of grasses. β‐amylase is a crucial enzyme in the beer industry providing maltose for fermenting yeast. In animals and plants, inhib…
View article: Pre-mature senescence in the oldest leaves of low nitrate-grown <i>Atxdh1</i> mutant uncovers a role for purine catabolism in plant nitrogen metabolism
Pre-mature senescence in the oldest leaves of low nitrate-grown <i>Atxdh1</i> mutant uncovers a role for purine catabolism in plant nitrogen metabolism Open
The nitrogen rich ureides allantoin and allantoate, are known to play a role in nitrogen delivery in Leguminosae , in addition to their role as reactive oxygen species scavengers. However, their role as a nitrogen source in non-legume plan…
View article: Singlet oxygen detection in biological systems: Uses and limitations
Singlet oxygen detection in biological systems: Uses and limitations Open
The study of singlet oxygen in biological systems is challenging in many ways. Singlet oxygen is a relatively unstable ephemeral molecule, and its properties make it highly reactive with many biomolecules, making it difficult to quantify a…
View article: Organelle redox autonomy during environmental stress
Organelle redox autonomy during environmental stress Open
Oxidative stress is generated in plants because of inequalities in the rate of reactive oxygen species (ROS) generation and scavenging. The subcellular redox state under various stress conditions was assessed using the redox reporter roGFP…
View article: Singlet Oxygen-Induced Membrane Disruption and Serpin-Protease Balance in Vacuolar-Driven Cell Death
Singlet Oxygen-Induced Membrane Disruption and Serpin-Protease Balance in Vacuolar-Driven Cell Death Open
Singlet oxygen plays a role in cellular stress either by providing direct toxicity or through signaling to initiate death programs. It was therefore of interest to examine cell death, as occurs in Arabidopsis, due to differentially localiz…