A5003686016- Fossil Insects in Amber
- Paleontology and Stratigraphy of Fossils
- Ruminant Nutrition and Digestive Physiology
- Plant Diversity and Evolution
- Insect and Arachnid Ecology and Behavior
- Plant and animal studies
- Geology and Paleoclimatology Research
- Reproductive Physiology in Livestock
- Polysaccharides and Plant Cell Walls
- Enzyme Production and Characterization
- Coleoptera Taxonomy and Distribution
- Biofuel production and bioconversion
- Fatty Acid Research and Health
- Ecology and Vegetation Dynamics Studies
- Evolution and Paleontology Studies
- Industrial Gas Emission Control
- Genetic and phenotypic traits in livestock
- Catalytic Processes in Materials Science
- Meat and Animal Product Quality
- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Forest Ecology and Biodiversity Studies
- Mycorrhizal Fungi and Plant Interactions
- Catalysis and Hydrodesulfurization Studies
- Collembola Taxonomy and Ecology Studies
Institut des Sciences de l'Evolution de Montpellier
2014-2024
Université de Montréal
2004-2023
Géosciences Rennes
2008-2022
Université de Montpellier
2012-2021
École Pratique des Hautes Études
2012-2021
Institut de Recherche pour le Développement
2018-2021
Centre National de la Recherche Scientifique
2009-2021
Institut National de Recherches Archéologiques Préventives
2012-2020
Centre Occitanie-Montpellier
2020
Université Claude Bernard Lyon 1
1991-2019
Summary Extracellular proteins play crucial roles in the interaction between mycorrhizal fungi and their environment. Computational prediction experimental detection allowed identification of 869 constituting exoproteome Hebeloma cylindrosporum . Small secreted ( SSP s) carbohydrate‐active enzymes CAZ ymes) were two major classes extracellular proteins. Twenty‐eight per cent s by free‐living mycelia five 10 most abundant s. By contrast, 63–75% involved nutrient acquisition secreted. A total...
Summary The phytopathogenic fungus Botrytis cinerea is able to infect a wide variety of plants and plant tissues with differing chemical compositions. During its interaction the host, this pathogen modulates ambient pH by secreting acids or ammonia. In work, we examined Pal/Pac pathway, fungal pH‐responsive signalling circuit, investigated role PacC transcription factor. Characterization BcpacC deletion mutant revealed an alteration both growth virulence depending on culture medium host...
Amber usually contains inclusions of terrestrial and rarely limnetic organisms that were embedded in the places they lived amber forests. Therefore, it has been supposed could not have preserved marine organisms. Here, we report discovery amber-preserved microfossils. Diverse diatoms as well radiolarians, sponge spicules, a foraminifer, spine larval echinoderm found Late Albian Early Cenomanian samples southwestern France. The highly fossiliferous resin solidified ≈100 million years ago on...
The investigation of microorganisms preserved in amber from Charente-Maritime (southwestern France) provides new insights into the mid-Cretaceous forest ecology. Amber localities Archingeay-Les Nouillers and Cadeuil is unique due to plethora microinclusions macroinclusions as well preservation litter organisms. Soil such actinomycetes, sheathed prokaryotes, carnivorous fungi (Ascomycota), algae, testate amoebae nematodes indicate that resin solidified terrestrial or limnetic-terrestrial...
Lower Cenomanian paralic facies outcrop widely on Aix Island (Charente-Maritime, France). Since the beginning of 19th century, there has been repeated GEODIVERSITAS 2009 31 (1) mentions abundant fossil wood and amber from this locality, with particular focus when remained poorly studied. New investigations 8 years ago have led to discovery additional material, including vertebrate remains first inclusions. This paper provides a sedimentological, stratigraphical palaeontological description...
Research Article| January 01, 2009 Exceptional preservation of marine diatoms in upper Albian amber Vincent Girard; Girard * 1Université Rennes 1, UMR CNRS 6118, 35042, France *E-mail: vincent.girard@univ-rennes1.fr. Search for other works by this author on: GSW Google Scholar Simona Saint Martin; Martin 2Muséum National d'Histoire Naturelle, 5143, Paris 75231, 3Universitatea din Bucureşti, Facultatea de Geologie şi Geofizică, Bucarest 020956, Romania Jean-Paul Alexander R. Schmidt; Schmidt...
In the current context of global change, increasing frequency and length drought periods are testing resistance capacities plants dry habitats. However, although adaptation to has been widely studied, anatomical features wood influencing functional responses still lacking at intraspecific level, especially for species with a wide geographical distribution. As result, we have studied variation traits related sap conduction (i.e., vessel surface area, density, number vessels joined by radial...
Nickel and cobalt are obligate nutrients for the gammaproteobacteria but when present at high concentrations they display toxic effects. These two metals in environment, their origin being either from natural sources or industrial use. In this study, effect of inhibitory Ni Co was assessed on soil bacterium Pseudomonas putida KT2440 using a proteomic approach. The identification more than 400 spots resulted quantification 160 proteins that underwent significant variations cells exposed to...
Plants and insects are constantly interacting in complex ways through forest communities since hundreds of millions years. Those interactions often related to variations the climate. Climate change, due human activities, may have disturbed these relationships modern ecosystems. Fossil leaf assemblages thus good opportunities survey responses plant-insect climate over time. The goal this study is discuss possible causes differences interactions' patterns European paleoforests from...
Studies on amber—fossil resin—have attracted much attention from the scientific community in last decade. Seven Ph.D. theses with amber as main material of study recently have been completed (Penney, 1999; Azar, 2000; Schmidt, 2003; Perrichot, 2005; Grund, 2006; Solorzano Kraemer, 2007; Girard, 2008), and two more are currently progress by Malvina Lak Jaime Ortega Blanco. From our personal bibliographic databases, we estimate that >1080 papers books published between 1999 2008 (as October...