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Nonuniform distribution of glucosinolates in Arabidopsis thaliana leaves has important consequences for plant defense
TLDR
The preferential allocation of glucosinolates to the periphery may play a key role in the defense of leaves by creating a barrier to the feeding of chewing herbivores that frequently approach leaves from the edge.
Geochemistry of surface and subsurface waters in quartz-sandstones: significance for the geomorphic evolution of tepui table mountains (Gran Sabana, Venezuela)
In situ measurements of discharge, pH, electric conductivity (EC), temperature, and SiO2 content have been carried out during five expeditions in the last 20 years on the summit plateaus, inside
Elucidating the Distribution of Plant Metabolites from Native Tissues with Laser Desorption Low-Temperature Plasma Mass Spectrometry Imaging.
TLDR
The modular design of the laser desorption (LD)-LTP MSI platform, which is mainly assembled from commercial and 3D-printed components, facilitates its adoption by other research groups and enables fast imaging measurements.
Determination of the absolute configuration of the glucosinolate methyl sulfoxide group reveals a stereospecific biosynthesis of the side chain.
TLDR
The epimeric purity of 4-methylsulfinylbutylglucosinolate is analyzed by NMR methods using a chiral lanthanide shift reagent demonstrating that the enzyme is stereospecific and supporting its involvement in glucosinolates side chain formation.
Glycine Conjugates in a Lepidopteran Insect Herbivore—The Metabolism of Benzylglucosinolate in the Cabbage White Butterfly, Pieris rapae
Our recent analyses of the biochemical basis of the metabolism of benzylglucosinolate (2) in Pieris rapae have shown that the assignment of metabolites in the radiochromatograms, as described in our
Cannibalism Affects Core Metabolic Processes in Helicoverpa armigera Larvae—A 2D NMR Metabolomics Study
TLDR
Quantitation of 1H-13C HSQC (Heteronuclear Single Quantum Coherence) signals revealed that the concentrations of glucose, glucono-1,5-lactone, glycerol phosphate, glutamine, glycine, leucine, isoleucine and lysine were higher in the herbivore larvae than in the carnivorous larvae.
Effects of Water Availability in the Soil on Tropane Alkaloid Production in Cultivated Datura stramonium
TLDR
The results show that soil water availability is an effective method for maximizing the production of specific tropane alkaloids for industrial applications.
Artificial Autopolyploidization Modifies the Tricarboxylic Acid Cycle and GABA Shunt in Arabidopsis thaliana Col-0
TLDR
Solid evidence is presented to demonstrate that autopolyploidy influences core plant metabolic processes, particularly related to the tricarboxylic acid cycle and γ-amino butyric acid shunt.
Microbial diversity and biosignatures of amorphous silica deposits in orthoquartzite caves
TLDR
Results show that both quartz weathering and silica mobility are affected by chemotrophic bacterial communities, providing insights for the understanding of the silica cycle in the subsurface.
Glycine Conjugates in a Lepidopteran Insect Herbivore—The Metabolism of Benzylglucosinolate in the Cabbage White Butterfly, Pieris rapae
TLDR
It is shown that P. rapae larvae convert benzylglucosinolate to phenylacetylglycine, which is released in their faeces, and the first description of such conjugates from lepidopteran insects is described.
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