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Antoine Champagne

Antoine Champagne

PhD

About

19
Publications
4,517
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422
Citations
Introduction
Currently working on the improvement of in vitro micropropagation and acclimatization of walnut, chesnut, hazelnut (...) trees.
Additional affiliations
May 2017 - present
Stockholm University
Position
  • PostDoc Position
Description
  • Metabolomics/Fluxomics of lignin biosynthesis
January 2011 - October 2016
Université Catholique de Louvain - UCLouvain
Position
  • PostDoc Position
Description
  • Plant proteomics of terpenoid-related production and accumulation.

Publications

Publications (19)
Article
Full-text available
Lignin accumulates in the cell walls of specialized cell types to enable plants to stand upright and conduct water and minerals, withstand abiotic stresses, and defend themselves against pathogens. These functions depend on specific lignin concentrations and subunit composition in different cell types and cell wall layers. However, the mechanisms c...
Article
Full-text available
Plants produce a large variety of highly functionalized terpenoids. Functional groups such as partially unsaturated rings and carboxyl groups provide handles to use these compounds as feedstock for biobased commodity chemicals. For instance, methylperillate, a monoterpenoid found in Salvia dorisiana, may be used for this purpose, as it carries both...
Article
Full-text available
Symbiotic bacteria are common in insects and can affect various aspects of their hosts’ biology. Although the effects of insect symbionts have been clarified for various insect symbiosis models, due to the difficulty of cultivating them in vitro , there is still limited knowledge available on the molecular features that drive symbiosis. Serratia sy...
Preprint
Full-text available
Symbiotic bacteria are common in insects and can affect various aspects of their hosts’ biology. Although the effects of insect symbionts have been clarified for various insect symbiosis models, due to the difficulty of cultivating them in vitro , there is still limited knowledge available on the molecular features that drive symbiosis. Serratia sy...
Preprint
Full-text available
Symbiotic bacteria are common in insects and can affect various aspects of their hosts’ biology. Although the effects of insect symbionts have been clarified for various insect symbiosis models, due to the difficulty of cultivating them in vitro , there is still limited knowledge available on the molecular features that drive symbiosis. Serratia sy...
Article
Female flowers of hop (Humulus lupulus) are an essential source of terpenoid-related compounds, which are mainly used as flavoring in the beer brewing process. The compounds involved are bitter acids, terpenophenolics, as well as mono- and sesquiterpenoids. In this work, we analyzed the proteome of purified glandular trichomes (lupulin glands) from...
Article
Full-text available
Main conclusion Increased acidification of the external medium by an activated H + -ATPase results in cell expansion, in the absence of upstream activating signaling. The plasma membrane H+-ATPase couples ATP hydrolysis with proton transport outside the cell, and thus creates an electrochemical gradient, which energizes secondary transporters. Acco...
Article
Leaf glandular trichomes (epidermal hairs) actively synthesize secondary metabolites, many of which are the frontline of plant defense. In Nicotiana tabacum tall and short glandular trichomes have been identified. While the former have been extensively studied and match the classic picture of trichome function, the short trichomes have remained rel...
Article
Biofortification of taro (Colocasia esculenta) has never been studied. The aim of the present study is to compare the chemical compositions and individual constituent contents for major compounds (starch, sugars, cellulose, proteins, minerals), carotenoids and anthocyanins between parents and hybrids selected first for their agronomic performance a...
Article
Peltate glandular trichomes from Mentha spicata were purified on a Percoll gradient and soluble and membrane proteins were trypsinized and the peptides separated by nano-LC fractionation and analyzed by MALDI-MS/MS. The vast majority of the 1,666 proteins identified was housekeeping proteins or involved in primary metabolism. However, 57 were predi...
Article
Until recently, large scale proteomic investigations in the plant field have only been possible for a few model species for which the whole genome sequence had been fully determined. In contrast, for many other species with a strong economic interest as sources of human food and animal feed, as well as industrial and pharmacological molecules, litt...
Article
Madagascar periwinkle (Catharanthus roseus) is the major source of terpenoid indole alkaloids, such as vinblastine or vincristine, used as natural drugs against various cancers. In this study, we have extensively analyzed the proteome of cultured C. roseus cells. Comparison of the proteomes of two independent cell lines with different terpenoid ind...
Article
Tropical root and tuber crops are staple foods in developing countries where they are the main source of carbohydrates and a potential source of secondary metabolites such as carotenoids. Enhancing carotenoid content has considerable potential for improving human nutrition in these areas. Except for cassava and sweet potato, carotenoid content has...
Article
Tropical root and tuber crops (cassava, sweet potato, taro, and yam) are staples in developing countries where rapid urbanization is strengthening the demand for flour based foods. Quality control techniques are still under development, and when available, laboratory analyses are too expensive. The objectives of this study were to calibrate Near-in...

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Projects

Project (1)
Project
Project focusing on the molecular, sub-cellular and tissular regulations of lignification implicated in the control of lignin amount, composition and property in specific cell types.