Search results for "Bios"
showing 10 items of 2557 documents
Sexualité et sélection sexuelle.
2009
38 pages
La sexualité animale.
2009
188 pages
La sexualité animale : l'avant et l'après Darwin.
2009
64 pages
Hermaphrodisme et transsexualité.
2009
50 pages
L'homosexualité chez les animaux.
2009
24 pages
Introduction.
2009
Modelling hydrolysis: Simultaneous versus sequential biodegradation of the hydrolysable fractions
2018
Hydrolysis is considered the limiting step during solid waste anaerobic digestion (including co-digestion of sludge and biosolids). Mechanisms of hydrolysis are mechanistically not well understood with detrimental impact on model predictive capability. The common approach to multiple substrates is to consider simultaneous degradation of the substrates. This may not have the capacity to separate the different kinetics. Sequential degradation of substrates is theoretically supported by microbial capacity and the composite nature of substrates (bioaccessibility concept). However, this has not been experimentally assessed. Sequential chemical fractionation has been successfully used to define i…
Botrytis cinerea strains infecting grapevine and tomato display contrasted repertoires of accessory chromosomes, transposons and small RNAs
2022
Botrytis cinerea stands out for having a wide host range and is qualified as generalist.Nevertheless, recent studies suggest that it actually corresponds to co-existing populationsthat show a certain level of host specialization, as described for the French populations T andG1, specialized on tomato and grapevine, respectively (Mercier et al., 2019, Env. Microbiol.21, 4808–21; Mercier et al., 2021 Phytopathology, 111,2355-66).What are the molecular determinants responsible for such host-specialization? PreviousIllumina sequencing data revealed genes under positive selection encoding cellulases,pectinases and enzymes involved in the oxidative stress response suggesting that theseactivities m…
Chapter 16 - Carbon Nanotubes: Synthesis, Characterization, and Applications in Drug-Delivery Systems
2019
International audience; Nanoparticles are increasingly being considered in the medical field as an effective means to deliver drugs of interest or as diagnostic biosensors. Carbon nanotubes (CNTs) are an allotropic form of carbon related to the fullerene family. Their exceptional thermal, mechanical, and electronical properties together with their tubular shape, offering a high surface area and enabling adsorption or conjugation of a wide variety of therapeutic drugs or diagnostic agents, make CNTs attractive platforms for the treatment of various diseases. This chapter reviews the emerging synthesis, characterization, and and discusses the perspectives and obstacles of these promising nano…
Fermentation Products of Commensal Bacteria Alter Enterocyte Lipid Metabolism
2020
eferred to byJia Wen, John F. RawlsFeeling the Burn: Intestinal Epithelial Cells Modify Their Lipid Metabolism in Response to Bacterial Fermentation ProductsCell Host & Microbe, Volume 27, Issue 3, 11 March 2020, Pages 314-316; International audience; Despite the recognized capacity of the gut microbiota to regulate intestinal lipid metabolism, the role of specific commensal species remains undefined. Here, we aimed to understand the bacterial effectors and molecular mechanisms by which Lactobacillus paracasei and Escherichia coli regulate lipid metabolism in enterocytes. We show that L-lactate produced by L. paracasei inhibits chylomicron secretion from enterocytes and promotes lipid stora…