• The integration of their important traits like production of antifungal antibiotics, iron chelating siderophores, lytic enzymes, plant growth regulators, phosphate solubilization, ammonia and HCN production with ecological fitness of the strains will be prerequisite for designing useful, efficient and effective novel bioagent. (microbiologyjournal.org)
  • The main objective of this research was to exploit the indigenous potential fluorescent Pseudomonas strains viz. (microbiologyjournal.org)
  • Indeed, simulations parameterized from our data confirmed that strains retaining the capacity to switch between siderophores significantly outcompeted strains defective for one or the other siderophore under fluctuating iron availabilities. (datadryad.org)
  • Mutant strains not synthesizing polyamine-siderophores significantly increased enterobactin production levels, though lack of enterobactin did not impact the production of serratiochelins. (biomedcentral.com)
  • A total of 18 bacterial strains were successfully screened for in vitro antagonistic ability against Xoo , siderophore production and PGP potentials. (ppjonline.org)
  • Duffy BK, Defago G (1999) Environmental factors modulating antibiotic and siderophore biosynthesis by Pseudomonas flourescens biocontrol strains. (ub.ac.id)
  • Tested strains belonged mainly to Pseudomonas fluorescens Biovars III, IV and V and they could produce inhibition zone on PDA medium against P. c. subsp. (ac.ir)
  • Most of the strains applied increased potato fresh weight and all of them produced antibiotic and siderophore compounds in vitro. (ac.ir)
  • A biochemical comparison of PvdA to two homologues, para-hydroxybenzoate hydroxylase (PHBH from Pseudomonas fluorescens) and flavin-containing monooxygenases (FMOs from Schizosaccharomyces pombe and hog liver microsomes) indicates that PvdA proceeds by a novel reaction mechanism. (ku.edu)
  • Pseudomonas fluorescens are non-pathogenic saprophytes that colonize soil, water and plant surface environments. (biosciregister.com)
  • Pseudomonas fluorescens suppresses plant diseases by production of number of secondary metabolites including antibiotics, siderophores and hydrogen cyanide. (biosciregister.com)
  • Competitive exclusion of pathogens as the result of rapid colonization of the rhizosphere by pseudomonas fluorescens may also be an important factor in disease control. (biosciregister.com)
  • Locally isolated Pseudomonas fluorescens is an example of a potential BCAs for reducing BLB disease incidences when used to treat rice seeds ( Shivalingalah and Umesha, 2013 ). (ppjonline.org)
  • The objective of this study was to evaluate the effects of inoculation and co-inoculation with Bacillus subtilis and Pseudomonas fluorescens on carrots with reduced nitrogen use. (uptc.edu.co)
  • Moreover, based on the findings, Pseudomonas fluorescens can be recommended as a plant growth-promoting microorganism in carrot cultivation. (uptc.edu.co)
  • Assessment of Antagonistic Activity of Pseudomonas fluorescens Biovars Toward Pectobacterium carotovorum subsp. (ac.ir)
  • 2007. Alginate production by Pseudomonas putida creates a hydrated 133 microenvironment and contributes to biofilm architecture and stress tolerance under water-limiting conditions. (uptc.edu.co)
  • For example, the anthrax pathogen Bacillus anthracis releases two siderophores, bacillibactin and petrobactin, to scavenge ferric ion from iron containing proteins. (wikipedia.org)
  • 2010. Controle biológico da podridão radicular (Pythium aphanidermatum) e promoção de crescimento por Pseudomonas chlororaphis 63-28 e Bacillus subtilis GB03 em alface hidropônica. (uptc.edu.co)
  • The wide variety of siderophores may be due to evolutionary pressures placed on microbes to produce structurally different siderophores which cannot be transported by other microbes' specific active transport systems, or in the case of pathogens deactivated by the host organism. (wikipedia.org)
  • We report that Serratia plymuthica V4 produces a variety of siderophores, which we term the siderome , and which are assembled by the concerted action of enzymes encoded in two independent gene clusters. (biomedcentral.com)
  • In response to iron limitation in their environment, genes involved in microbe siderophore production and uptake are derepressed, leading to manufacture of siderophores and the appropriate uptake proteins. (wikipedia.org)
  • This suggests that gallium, perhaps, is utilising a novel, possibly unknown, ferric uptake system to gain entry to siderophore deficient cells. (whiterose.ac.uk)
  • Bacteria often possess multiple siderophore-based iron uptake systems for scavenging this vital resource from their environment. (datadryad.org)
  • Characterization of hydroxamate siderophores and siderophore-mediated iron uptake in Gaeumannomyces graminis var. (agri.gov.il)
  • Siderophores chelate Fe 3+ for uptake into the cell, where it is reduced to soluble Fe 2+ . (biomedcentral.com)
  • Some bacteria have evolved extraordinary ways to synthesize proprietary siderophores that require the expression of specialized TonB-dependent receptors (TBDRs) to allow for efficient siderophore uptake by the producer and its relatives [ 15 ]. (biomedcentral.com)
  • Here, we examine whether linkage among social traits occurs in natural habitats by examining investment levels and correlations between five public goods (biosurfactants, biofilm components, proteases, pyoverdines and toxic compounds) in 315 Pseudomonas isolates from soil and freshwater communities. (uzh.ch)
  • Six isolates were identified as Pseudomonas sp. (scialert.net)
  • Current study was conducted to isolate rhizobacterial isolates antagonistic to Pseudomonas syringae causing bacterial canker of the stone fruits(apricot, peach and plum) growing in the areas of Punjab and Khyber Pakhtoonkhwa (KPK) provinces of Pakistan. (innspub.net)
  • All the antagonistic isolates possessed one or more growth promoting character(s) such as siderophore production, phosphate solubilization, ammonia production and hydrogen cyanide (HCN) production. (innspub.net)
  • Genetic analyses of Pseudomonas syringae isolates from Belgian fruit orchards reveal genetic variability and isolate-host relationships within the pathovar syringae , and help identify both races of the pathovar morsprunorum . (innspub.net)
  • Examples of siderophores produced by various bacteria and fungi: Hydroxamate siderophores Catecholate siderophores Mixed ligands Amino carboxylate ligands A comprehensive list of siderophore structures (over 250) is presented in Appendix 1 in reference. (wikipedia.org)
  • A third, independent operon is responsible for biosynthesis of the hydroxamate siderophore aerobactin, initially described in Enterobacter aerogenes . (biomedcentral.com)
  • Strain ATSA2 T displayed PGP traits such as indole acetic acid (IAA, 62.9 μg/mL) and siderophore production, and phosphate solubilization activity. (springeropen.com)
  • Siderophores (Greek: "iron carrier") are small, high-affinity iron-chelating compounds that are secreted by microorganisms such as bacteria and fungi. (wikipedia.org)
  • Siderophores are also important for some pathogenic bacteria for their acquisition of iron. (wikipedia.org)
  • Besides siderophores, some pathogenic bacteria produce hemophores (heme binding scavenging proteins) or have receptors that bind directly to iron/heme proteins. (wikipedia.org)
  • In bacteria, Fe2+-dependent repressors bind to DNA upstream to genes involved in siderophore production at high intracellular iron concentrations. (wikipedia.org)
  • Bacteria frequently cooperate by sharing secreted metabolites such as enzymes and siderophores. (uzh.ch)
  • 2016 ). Indirect mechanisms promote plant growth through the inhibition of phytopathogens, for example, via inhibition of soil-borne fungi, bacteria, and nematodes through the production of antimicrobial metabolites or siderophores (Fu et al. (springeropen.com)
  • one way that bacteria diversify siderophore structure is by incorporating different polyamine backbones while maintaining the catechol moieties. (biomedcentral.com)
  • Bacteria have not only devised ways of biosynthesizing "proprietary" siderophore molecules, but have evolved transport mechanisms that allow them to utilize foreign siderophores, or xenosiderophores, as well [ 8 , 9 ]. (biomedcentral.com)
  • Chaiharn M, Chunhaleuchanon S, Lumyong S (2009) Screening siderophore producing bacteria as potential biological control agent for fungal rice pathogens in Thailand. (ub.ac.id)
  • Basically, Pseudomonas syringae pathogenesis is dependent on effector proteins and to date, nearly 60 different type III effector proteins encoded by hop genes have been identified [ http://www.pseudomonas-syringae.org/ ]. (biomedcentral.com)
  • They have devised complex regulatory mechanisms responding to Fe 2+ unavailability that induce the expression of a series of genes to produce small iron chelators, termed siderophores [ 5 , 6 , 7 ], secrete them, and take up their iron-bound forms. (biomedcentral.com)
  • A potential new target for antimicrobial drugs is the production of siderophores. (ku.edu)
  • In the current study, we investigated the characteristics of bacterial strain Pseudomonas sp. (mdpi.com)
  • This bacterial strain showed plant growth-promoting properties, including biofilm formation and siderophore activity. (mdpi.com)
  • One strain of Pseudomonas sp. (bvsalud.org)
  • strain ABC1, a siderophore-producing fluorescent strain recently isolated from soil. (uai.cl)
  • Phylogenomic analyses revealed that this strain corresponds to a novel species forming a sister clade of the recently proposed Pseudomonas kirkiae. (uai.cl)
  • Strain ABC1 can produce siderophores in a low-cost medium, and the supernatants from cultures of this strain promote plant growth, highlighting their biotechnological potential as a sustainable industrial microorganism. (uai.cl)
  • Fluorescent Pseudomonas species have a number of traits like antifungal, siderophores, phosphatesolubilization, lytic enzymes, HCN, ammonia and plant growth regulators that allow them to act as plant growth promoting and biocontrol agents. (microbiologyjournal.org)
  • Besides assembling serratiochelin A and B with diaminopropane, S. plymuthica utilizes putrescine and the same set of enzymes to assemble photobactin, a siderophore found in the bacterium Photorhabdus luminescens . (biomedcentral.com)
  • Microbes release siderophores to scavenge iron from these mineral phases by formation of soluble Fe3+ complexes that can be taken up by active transport mechanisms. (wikipedia.org)
  • Bacterial siderophores are small molecules with unmatched capacity to scavenge iron from proteins and the extracellular milieu, where it mostly occurs as insoluble Fe 3+ . (biomedcentral.com)
  • Because of this property, they have attracted interest from medical science in metal chelation therapy, with the siderophore desferrioxamine B gaining widespread use in treatments for iron poisoning and thalassemia. (wikipedia.org)
  • We conducted series of potentiometric titrations, in non-coordinating medium at seawater ionic strength (0.7 M NaClO 4 ) over a range of metal:ligand molar ratios, to study complexation of the siderophore desferrioxamine B (DFOB) with Mg and Ca, for which it has the highest affinity among the major seasalt cations. (frontiersin.org)
  • This is followed by excretion of the siderophore into the extracellular environment, where the siderophore acts to sequester and solubilize the iron. (wikipedia.org)
  • The interolog-based method predicts ~0.79M PPIs involving around 7700 Arabidopsis and 1068 Pseudomonas proteins in the full genome. (biomedcentral.com)
  • Interestingly, the secondary metabolites cerecidin, carotenoid, siderophore (staphylobactin), and bacillaene underlying plant growth promotion were found in the whole genome via antiSMASH analysis. (springeropen.com)
  • An unusual overrepresentation of genetic factors related to iron homeostasis in the genome of the fluorescent Pseudomonas sp. (uai.cl)
  • The genome of the Pseudomonas sp. (uai.cl)
  • The most effective siderophores are those that have three bidentate ligands per molecule, forming a hexadentate complex and causing a smaller entropic change than that caused by chelating a single ferric ion with separate ligands. (wikipedia.org)
  • Siderophores are usually classified by the ligands used to chelate the ferric iron. (wikipedia.org)
  • This study shows the natural occurrence of serratiochelins, photobactin, enterobactin, and aerobactin in a single bacterial species and illuminates the interplay between siderophore biosynthetic pathways and polyamine production, indicating routes of molecular diversification. (biomedcentral.com)
  • Siderophores are amongst the strongest binders to Fe3+ known, with enterobactin being one of the strongest of these. (wikipedia.org)
  • Members of the genus Pseudomonas inhabit diverse environments, such as soil, water, plants and humans. (uai.cl)
  • In this study, we report on the most relevant genomic characteristics of Pseudomonas sp. (uai.cl)
  • Pseudomonas syringae is a major bacterial leaf pathogen that causes diseases in a wide range of plant species. (biomedcentral.com)
  • Pseudomonas syringae is a Gram-negative bacterium causing economically important diseases in a wide range of plant species leading to severe agricultural losses worldwide. (biomedcentral.com)
  • One such innovative way is the incorporation of polyamines into the nascent siderophore, which has evolved in multiple species that naturally produce polyamines. (biomedcentral.com)
  • Microbes usually release the iron from the siderophore by reduction to Fe2+ which has little affinity to these ligands. (wikipedia.org)
  • However, some siderophores seem redundant, because they have limited iron-binding efficiency and are seldom expressed under iron limitation. (datadryad.org)
  • A Pseudomonas protein and an Arabidopsis protein are predicted to interact with each other if an experimentally verified interaction exists between their respective homologous proteins in another organism. (biomedcentral.com)
  • If a Pseudomonas and an Arabidopsis protein contain an interacting domain pair, one can expect the two proteins to interact with each other. (biomedcentral.com)
  • The domain-based method predicts 85650 PPIs comprising 11432 Arabidopsis and 887 Pseudomonas proteins. (biomedcentral.com)
  • This suggests that pyochelin is not redundant, but that switching between siderophore strategies might be beneficial to trade off efficiencies versus costs of siderophores. (datadryad.org)