Dataset Information

Effects of simulated space radiations on the tomato root proteome

ABSTRACT: Plant cultivation on spacecraft or planetary outposts is a promising and actual perspective both for food and bioactive molecules production. To this aim, plants response to ionizing radiations, as an important component of space radiation, must be assessed through on-ground experiments due to the potentially fatal effects on living systems. Hereby we investigated the effects of X-rays and -rays exposure on tomato ‘hairy root’ cultures (HRCs), which represent a solid platform for the production of pharmaceutically relevant molecules, including metabolites and recombinant proteins. In a space application perspective, we used a HRC system previously fortified through the accumulation of anthocyanins, which are known for their anti-oxidant properties. Roots were independently exposed to different photon radiations, namely X-rays (250 kV) and -rays (Co60, 1.25 MeV), both at the intensity of 0.5, 5 and 10 Gy. Molecular changes induced in the proteome of HRCs were investigated by a comparative approach based on Two-Dimensional Difference In-Gel electrophoresis (2D-DIGE) technology and mass spectrometry.

INSTRUMENT(S): LTQ, Q Exactive

ORGANISM(S): Solanum Lycopersicum

TISSUE(S): Hairy Root Culture

SUBMITTER: anna maria salzano

LAB HEAD: Andrea Scaloni

PROVIDER: PXD014748 | Pride | 2019-09-25

REPOSITORIES: Pride

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Publications

Effects of Simulated Space Radiations on the Tomato Root Proteome.

Desiderio Angiola A Salzano Anna Maria AM Scaloni Andrea A Massa Silvia S Pimpinella Maria M De Coste Vanessa V Pioli Claudio C Nardi Luca L Benvenuto Eugenio E Villani Maria Elena ME

Frontiers in plant science 20191024

Plant cultivation on spacecraft or planetary outposts is a promising and actual perspective both for food and bioactive molecules production. To this aim, plant response to ionizing radiations, as an important component of space radiation, must be assessed through on-ground experiments due to the potentially fatal effects on living systems. Hereby, we investigated the effects of X-rays and γ-rays exposure on tomato "hairy root" cultures (HRCs), which represent a solid platform for the production ...[more]

PMID: 31708949

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Project description:Lipoprotein lipase (LPL) is responsible for the intravascular catabolism of triglyceride-rich lipoproteins and plays a central role in whole-body energy balance and lipid homeostasis. As such, LPL is subject to tissue-specific regulation in different physiological conditions, but the mechanisms of this regulation remain incompletely characterized. Previous work revealed that LPL comprises a set of proteoforms with different isoelectric points, but their regulation and functional significance have not been studied thus far. Here we studied the distribution of LPL proteoforms in different rat tissues and their regulation under physiological conditions. First, analysis by two-dimensional electrophoresis and Western blot showed different patterns of LPL proteoforms (i.e., different pI or relative abundance of LPL proteoforms) in different rat tissues under basal conditions, which could be related to the tissue-specific regulation of the enzyme. Next, the comparison of LPL proteoforms from heart and brown adipose tissue between adults and 15-day-old rat pups, two conditions with minimal regulation of LPL in these tissues, yielded virtually the same tissue-specific patterns of LPL proteoforms. In contrast, the pronounced down-regulation of LPL activity observed in white adipose tissue during fasting is accompanied by a prominent reconfiguration of the LPL proteoform pattern. Furthermore, refeeding reverts this down-regulation of LPL activity and restores the pattern of LPL proteoforms in this tissue. Importantly, this reversible proteoform-specific regulation during fasting and refeeding indicates that LPL proteoforms are functionally diverse. Further investigation of potential differences in the functional properties of LPL proteoforms showed that all proteoforms exhibit lipolytic activity and have similar heparin-binding affinity, although other functional aspects remain to be investigated. Overall, this study demonstrates the ubiquity, differential distribution and specific regulation of LPL proteoforms in rat tissues and underscores the need to consider the existence of LPL proteoforms for a complete understanding of LPL regulation under physiological conditions.

Dataset Information

Effects of simulated space radiations on the tomato root proteome

Publications

Effects of Simulated Space Radiations on the Tomato Root Proteome.

Similar Datasets

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