GNPS - Lichen metabolites produced under extreme conditions
Ontology highlight
ABSTRACT:
INSTRUMENT(S): Q Exactive HF
ORGANISM(S): Fulgensia (ncbitaxon:157762)
SUBMITTER: 
Daniel Petras
PROVIDER: MSV000092339 | GNPS | Tue Jul 04 05:23:00 BST 2023
REPOSITORIES: GNPS
Similar Datasets
Project description:Non-target metabolomics of lichens exposed to extreme environmental conditions such as pressure and ultraviolet light
2023-07-04 | MSV000092339 | MassIVE
Project description:We have investigated the genomic response of Arabidopsis cell suspension culture under high light. Our main goal has been twofold: first, to establish whether chloroplasts in Arabidopsis cell suspension culture are functional and, as such, can act as sensors of adverse external stimuli leading to the activation of genomic defence responses in a manner similar to that described in whole plants exposed to a wide range of environmental stresses and; second, to distinguish which of the ROS that would be probably generated in the chloroplasts is predominant. Our functional genomic analysis has led us to conclude that singlet oxygen is the major ROS in Arabidopsis cell suspension culture under high light stress and that singlet oxygen production is responsible for a genomic activation associated with the biosynthesis and signalling pathway of several phytohormones that ultimately triggers accelerated cell death.
2011-05-05 | GSE22671 | GEO
Project description:We have investigated the genomic response of Arabidopsis cell suspension culture under high light. Our main goal has been twofold: first, to establish whether chloroplasts in Arabidopsis cell suspension culture are functional and, as such, can act as sensors of adverse external stimuli leading to the activation of genomic defence responses in a manner similar to that described in whole plants exposed to a wide range of environmental stresses and; second, to distinguish which of the ROS that would be probably generated in the chloroplasts is predominant. Our functional genomic analysis has led us to conclude that singlet oxygen is the major ROS in Arabidopsis cell suspension culture under high light stress and that singlet oxygen production is responsible for a genomic activation associated with the biosynthesis and signalling pathway of several phytohormones that ultimately triggers accelerated cell death. After the ninth day of growth, a volume of 200 mL of Arabidopsis cell suspension culture with a cell density of approximately 150-200 mg/mL was placed in a glass vessel surrounded by a water bath to maintain constant temperature during the light treatment. Nine microarray experiments were designed and classified as follows: control 1âÂÂ3 (50 microE/m2/s), 1-h dark 1âÂÂ3 and high light 1âÂÂ3 (1800 microE/m2/s); where 1âÂÂ3 stands for the number of biological replicates. After each treatment, sample RNA was extracted and its quality evaluated. The transcriptomic analysis was performed using Affymetrix GeneChip Arabidopsis genome ATH1 arrays.
2010-07-29 | E-GEOD-22671 | biostudies-arrayexpress
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Project description:Formaldehyde is toxic and has been implicated in the pathologies of various diseases, such as cognitive impairment and cancer. Though d-ribose is widely studied and provided as a supplement to food such as flavor and drinks, no laboratories have reported that d-ribose is involved in the formaldehyde production. Here, we show that formaldehyde is produced from d-ribose in lysine or glycine solution and Tris-HCl buffer under neutral and alkaline conditions. Intraperitoneal injection of C57BL/6J mice with d-ribose significantly increased the concentration of brain formaldehyde, compared to the injection with d-glucose or saline. These data suggest that formaldehyde levels should be monitored for the people who take d-ribose as a supplement.
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Project description:The size of tomato fruits are largely dependent on growth conditions. To obtain insights on how light intensity contributes to translocation from a leaf and a fruit, we developed a plant irradiation system based on light-emitting diodes (LEDs) to a leaf. By using this system, we investigated the changes of transcript profiles of tomato leaves and fruits grown under different light conditions.
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Project description:A thorough phytochemical study of Stereocaulon evolutum was conducted, for the isolation of structurally related atranorin derivatives. Indeed, pilot experiments suggested that atranorin (1), the main metabolite of this lichen, would interfere with the lifecycle of hepatitis C virus (HCV). Eight compounds, including one reported for the first time (2), were isolated and characterized. Two analogs (5, 6) were also synthesized, to enlarge the panel of atranorin-related structures. Most of these compounds were active against HCV, with a half-maximal inhibitory concentration of about 10 to 70 µM, with depsides more potent than monoaromatic phenols. The most effective inhibitors (1, 5 and 6) were then added at different steps of the HCV lifecycle. Interestingly, atranorin (1), bearing an aldehyde function at C-3, inhibited only viral entry, whereas the synthetic compounds 5 and 6, bearing a hydroxymethyl and a methyl function, respectively, at C-3 interfered with viral replication.
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