Results 21 to 30 of about 128,372 (234)

Regulation of iron-siderophore uptake in a diazotrophic cyanobacterium Anabaena anabaena 7120

open access: yesThe Indian Journal of Agricultural Sciences, 2014
The regulation of 55Fe-siderophore uptake of was studied in a diazotrophic cyanobacterium Anabaena 7120. The uptake up to 20 min was found to be biphasic, a rapid first and steady second phase.
RISHI KUMAR SAXENA   +2 more
doaj   +1 more source

Iron(III)–siderophore coordination chemistry: Reactivity of marine siderophores [PDF]

open access: yesCoordination Chemistry Reviews, 2010
Two remarkable features of many siderophores produced by oceanic bacteria are the prevalence of an α-hydroxy-carboxylic acid functionality either in the form of the amino acid β-hydroxy aspartic acid or in the form of citric acid, as well as the predominance of amphiphilic siderophores.
Alison, Butler, Roslyn M, Theisen
openaire   +2 more sources

The role of the phosphopantetheinyltransferase enzyme, PswP, in the biosynthesis of antimicrobial secondary metabolites by Serratia marcescens Db10 [PDF]

open access: yes, 2014
Phosphopantetheinyltransferase (PPTase) enzymes fulfil essential roles in primary and secondary metabolism in prokaryotes, archaea and eukaryotes. PPTase enzymes catalyse the essential modification of the carrier protein domain of fatty acid synthases ...
Amy J. Gerc   +9 more
core   +4 more sources

Community composition drives siderophore dynamics in multispecies bacterial communities

open access: yesBMC Ecology and Evolution, 2023
Background Intraspecific public goods are commonly shared within microbial populations, where the benefits of public goods are largely limited to closely related conspecifics.
Siobhán O’Brien   +2 more
doaj   +1 more source

Presence of a loner strain maintains cooperation and diversity in well-mixed bacterial communities [PDF]

open access: yes, 2016
Cooperation and diversity abound in nature despite cooperators risking exploitation from defectors and superior competitors displacing weaker ones. Understanding the persistence of cooperation and diversity is therefore a major problem for evolutionary ...
Biernaskie, Jay   +3 more
core   +2 more sources

Distribution of siderophore gene systems on a Vibrionaceae phylogeny: Database searches, phylogenetic analyses and evolutionary perspectives. [PDF]

open access: yesPLoS ONE, 2018
Siderophores are small molecules synthesized and secreted by bacteria and fungi to scavenge iron. Extracellular ferri-siderohores are recognized by cognate receptors on the cell surface for transport over membranes.
Sunniva Katharina Thode   +4 more
doaj   +1 more source

Detection and Characterization of Antibacterial Siderophores Secreted by Endophytic Fungi from Cymbidium aloifolium

open access: yesBiomolecules, 2020
Endophytic fungi from orchid plants are reported to secrete secondary metabolites which include bioactive antimicrobial siderophores. In this study endophytic fungi capable of secreting siderophores were isolated from Cymbidium aloifolium, a medicinal ...
Srinivas Chowdappa   +4 more
doaj   +1 more source

Mechanisms of goethite dissolution in the presence of desferrioxamine B and Suwannee River fulvic acid at pH 6.5 [PDF]

open access: yes, 2013
Siderophores are Fe3+ specific low MW chelating ligands secreted by microorganisms in response to Fe stress. Low MW organic acids such as oxalate have been shown to enhance siderophore mediated dissolution of Fe3+ oxides.
Alvarez-Puebla   +57 more
core   +1 more source

Siderophore-Microcins in Escherichia coli: Determinants of Digestive Colonization, the First Step Toward Virulence

open access: yesFrontiers in Cellular and Infection Microbiology, 2020
Siderophore-microcins are antimicrobial peptides produced by enterobacteria, especially Escherichia coli and Klebsiella pneumoniae strains. The antibiotic peptide is post-translationally modified by the linkage of a siderophore moiety.
Clémence Massip   +3 more
doaj   +1 more source

Salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 induces resistance to leaf infection by Botrytis cinerea on bean [PDF]

open access: yes, 1997
Selected strains of nonpathogenic rhizobacteria can induce a systemic resistance in plants that is effective against various pathogens. In an assay with bean plants, we investigated which determinants of the rhizobacterium Pseudomonas aeruginosa 7NSK2 ...
De Meyer, Geert, Höfte, Monica
core   +1 more source

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