Search results for "Différenciation cellulaire"

showing 2 items of 2 documents

A Peptidoglycan-Remodeling Enzyme Is Critical for Bacteroid Differentiation in Bradyrhizobium spp. During Legume Symbiosis.

2016

International audience; In response to the presence of compatible rhizobium bacteria, legumes form symbiotic organs called nodules on their roots. These nodules house nitrogen-fixing bacteroids that are a differentiated form of the rhizobium bacteria. In some legumes, the bacteroid differentiation comprises a dramatic cell enlargement, polyploidization, and other morphological changes. Here, we demonstrate that a peptidoglycan-modifying enzyme in Bradyrhizobium strains, a DD-carboxypeptidase that contains a peptidoglycan-binding SPOR domain, is essential for normal bacteroid differentiation in Aeschynomene species. The corresponding mutants formed bacteroids that are malformed and hypertrop…

0301 basic medicinePhysiology[SDV]Life Sciences [q-bio]Mutantnodosité racinairechemistry.chemical_compoundBacteroidesBradyrhizobiumPhotosynthesisPhotosynthèseDifférenciation cellulaire2. Zero hungerhttp://aims.fao.org/aos/agrovoc/c_2603http://aims.fao.org/aos/agrovoc/c_6094food and beveragesFabaceaeGeneral MedicinePolyploïdieCode génétiqueRhizobiumhttp://aims.fao.org/aos/agrovoc/c_3215Symbiosihttp://aims.fao.org/aos/agrovoc/c_27138F60 - Physiologie et biochimie végétaleSymbioseBacterial Proteinhttp://aims.fao.org/aos/agrovoc/c_772PeptidoglycanBiologyBradyrhizobiumMicrobiology03 medical and health sciencesPhotosynthesiBacterial ProteinsSymbiosisPeptidaseSymbiosishttp://aims.fao.org/aos/agrovoc/c_7563Binding Sites[ SDV ] Life Sciences [q-bio]Binding SiteP34 - Biologie du solAeschynomeneGene Expression Regulation Bacterialbiology.organism_classificationhttp://aims.fao.org/aos/agrovoc/c_27601http://aims.fao.org/aos/agrovoc/c_5014030104 developmental biologychemistryEnzymeMutationhttp://aims.fao.org/aos/agrovoc/c_5812http://aims.fao.org/aos/agrovoc/c_5690PeptidoglycanBacteroidesAgronomy and Crop ScienceBacteriahttp://aims.fao.org/aos/agrovoc/c_2265
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Étude des mécanismes moléculaires associés aux effets de l'ODN sur des cellules astrogliales et microgliales soumises à un stress oxydant : impact su…

2019

Neurodegenerative diseases are characterized by oxidative stress associated with mitochondrial damages leading to neuronal cell death. To mitigate these damages and promote neuronal cytoprotection and neurogenesis, endogenous (Neuropeptide: octadecaneuropeptide (ODN)) or exogenous (Polyphenols: resveratrol (RSV) and apigenin (API)) natural neurotrophic factors could be used as therapeutic agents to promote neuronal differentiation of immature and pluripotent stem cells. ODN is a peptide produced by astrocytes and known as a powerful neuroprotective agent. It is therefore of interest of studying its effects on the mobilization of calcium, its ability to protect neuronal cells against apoptos…

Peroxysome. mitochondrie[CHIM.ORGA]Chemical Sciences/Organic chemistryCell differentiationPolyphenolsPolyphénolsNeurodegenerationNeurodégénérescence[CHIM.ORGA] Chemical Sciences/Organic chemistryPeroxisome. mitochondriaOctadécaneuropeptide (ODN)NeuroprotectionOctadecaneuropeptide (ODN)Différenciation cellulaire
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