Results 71 to 80 of about 21,544 (174)
Caractérisation des systèmes de transport du fer de Staphylococcus aureus par analyse transcriptomique [PDF]
, 2007 La quasi-totalité des organismes vivants a besoin de fer pour survivre car il tient un rôle clé dans de nombreuses réactions physiologiques. Les microorganismes ne font pas exception à cette règle. Quoiqu'un des éléments les plus abondants sur Terre, les
Allard, Marianne
core +1 more source
Deciphering the biosynthetic pathways of lichen acids
New Phytologist, EarlyView.Summary Depsides and depsidones are polyketide‐derived lichen acids widely distributed in lichen thalli, yet the biosynthetic gene clusters (BGCs) responsible for their production remain poorly understood. To address this gap, we investigated the diversity and evolutionary relationships of polyketide BGCs in lichens.
Wonyong Kim +11 more
wiley +1 more source
Bioalteration de verres basaltiques modèles : impact des sidérophores et rôle du fer [PDF]
, 2015 The alteration of ocean basalts partly controls the composition of seawater and of the oceanic crust which in turn influences the Earth's mantle geochemistry and may also have a significant impact on Earth's climate over a geological timescale. Regarding
Perez, Anne
core +2 more sources
Rhizobial motility preference in root colonization of Medicago truncatula
New Phytologist, EarlyView.Summary Tunnel‐like infection thread (IT) structures support root colonization by symbiotic nitrogen‐fixing rhizobia bacteria in most legume species. These tip‐grown structures are key to directing rhizobia from root hairs to developing nodules, where they are hosted to fix nitrogen.
Anaïs Delers +11 more
wiley +1 more source
Rôle du régulateur Fur et des petits ARN non codants RfrA et RfrB dans l’homéostasie du fer et la virulence de Salmonella [PDF]
, 2013 La régulation de l’homéostasie du fer est cruciale chez les bactéries. Chez Salmonella, l’expression des gènes d’acquisition et du métabolisme du fer au moment approprié est importante pour sa survie et sa virulence. Cette régulation est effectuée par la
Leclerc, Jean-Mathieu
core
Advancing Plant Microbiome Research Through Host DNA Depletion Techniques
Plant Biotechnology Journal, EarlyView.The plant microbiome plays an essential role in promoting plant growth, enhancing stress tolerance and maintaining overall plant health. Metagenomic technologies have significantly expanded our ability to investigate plant–microbe interactions at high taxonomic and functional resolutions.
Yao Wang +5 more
wiley +1 more source
Iron Uptake Mechanisms in Marine Phytoplankton
Frontiers in Microbiology, 2020 Oceanic phytoplankton species have highly efficient mechanisms of iron acquisition, as they can take up iron from environments in which it is present at subnanomolar concentrations.
Robert Sutak +2 more
doaj +1 more source
Caractérisation de souches d'Escherichia coli pathogènes urinaires provenant de Guadeloupe: portrait de la diversité des facteurs de virulences présents [PDF]
, 2016 Les E. coli uropathogènes (UPEC) sont responsables d’environ 80% des infections du tractus urinaire (ITUs). La diversité des souches d’UPEC ainsi que leurs facteurs de virulences peuvent varier selon la région géographique.
Maris, Ségolène
core
Plant Biotechnology Journal, EarlyView.ABSTRACT Iron (Fe) is an essential micronutrient for plant growth and development. Rhizosphere microorganisms play crucial roles in plant Fe nutrition, yet the underlying mechanisms remain largely unknown. Here, we assessed the effect of the volatile organic compounds (VOCs) produced by Bacillus velezensis SQR9 on Fe uptake in Arabidopsis, elucidated ...
Taimeng Tan +12 more
wiley +1 more source
Bio-Protocol, 2017 Xanthomonads can scavenge iron from the extracellular environment by secreting the siderophores, which are synthesized by the proteins encoded by xss (Xanthomonas siderophore synthesis) gene cluster.
Sheo Pandey +4 more
doaj +1 more source