Iron, Siderophores, and plant diseases

  • 351 Pages
  • 0.42 MB
  • English
Plenum Press , New York
Plant diseases -- Congresses., Plants -- Effect of iron on -- Congresses., Siderophores -- Congresses., Iron -- Physiological effect -- Congre
Statementedited by T.R. Swinburne.
SeriesNATO ASI series. Series A, life sciences ;, v. 117, NATO advanced science institutes series., v. 117.
ContributionsSwinburne, T. R. 1936-, North Atlantic Treaty Organization. Scientific Affairs Division.
LC ClassificationsSB727 .N384 1985
The Physical Object
Paginationix, 351 p. :
ID Numbers
Open LibraryOL2333363M
ISBN 10030642407X
LC Control Number86222290

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The importance of competition for iron in the inter Pages: Iron, Siderophores, and Plant Diseases. Editors (view affiliations) T. Swinburne; Book. Citations; 4k Downloads; Part of the NATO ASI Series book series (NSSA, volume ) Log in to check access.

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Only valid for books with an ebook : Springer US. ISBN: X OCLC Number: Notes: "Published in cooperation with NATO Scientific Affairs Division." "Proceedings of a NATO Advanced Research Workshop on Iron, Siderophores, and Plant Diseases, held July, in Wye, Kent, United Kingdom.".

Siderophores (Greek: "iron carrier") are small, high-affinity iron-chelating compounds that are secreted by microorganisms such as bacteria and fungi and serve primarily to transport iron across cell membranes, although a widening range of siderophore functions is now being appreciated.

Siderophores are among the strongest soluble Fe 3+ binding agents known. Iron Transport in Microbes, Plants and Animals by Winkelmann, Gunther; Van Der Helm, Dick and a great selection of related books, art and collectibles available now at Siderophores. Mining iron: Iron uptake and transport in plants.

FEBS Lett. – Klebba P E. ROSET model of tonB action in Gram- negative bacterial iron acquisition. J Bacteriol. – Kloepper J W, Leong J, Teintze M, Schroth M N. En- hanced plant growth by siderophores produced by plant growth-promoting. Mutants defective in chrysobactin- or achromobactin-mediated iron transport produce symptoms that remain localized to the inoculated leaf, indicating that these siderophores are required for bacteria to spread throughout the plant.

85,86 In addition to its nutritional role, chrysobactin appears to be involved in manipulation of the plant. Recently research describing a role for certain siderophores in plant iron nutrition and plant diseases has blossomed; extensive discussion of these topics is correctly reserved for the remaining authors.

Iron, Siderophores, and Plant Diseases. Iron, Siderophores, and Plant Diseases pp | Cite as. Diverse Effects of Some Bacterial Siderophores on the Uptake of Iron by Plants. Authors eBook Packages Springer Book Archive; Buy this book on publisher's site; Reprints and Permissions; Personalised recommendations.

Physicochemical Properties of Siderophores. Siderophores are designed to form tight and stable complexes with ferric iron. Generally, the hard Lewis acid Fe(III) is strongly solvated in aqueous solution, forming an octahedral Fe(H 2 O) 6 3+ complex ().Due to the gain of entropy, the siderophore donor atoms favorably replace the solvent water and surround Fe(III) in a hexacoordinated state that.

In case of plant iron deficiency, graminaceous plants (grasses, cereals and rice) secrete phytosiderophores into the soil to make bioavailable form of iron (ferric to ferrous ions) for plant root system (Sugiura and Nomoto, ).

Apart from siderophores, lower pH also favor iron uptake in plants. of Pseudomonas-produced siderophores in the control of some plant diseases has been described (Whipps, 20 01).

In some repor ts, siderophores have been sho w n to suppress several pathogen. Most all living organisms require iron for crucial processes that allow for the life and growth of cells.

Animals receive this nutrient from diet, but plants and single-celled organisms must utilize different strategies. 1 There are two main mechanisms by which cells acquire iron. The simpler of the two, is iron diffusion across cellular membranes. 2 This mechanism is more difficult, despite.

In this active zone they are also involved in plant growth promotion through the release of siderophores and chelators like molecules (Idris et al. ; Pahari et al. ) in addition to. Role of siderophores in controlling plant pathogens To satisfy nutritional requirements of iron, microorganisms have evolved highly specific pathways that employ low molecular weight iron chelators termed siderophores.

Siderophores are secreted to solubilize iron. The synthetically produced fluorescent siderophore NBD-desferrioxamine B (NBD-DFO), an analog of the natural siderophore ferrioxamine B, was used to study iron uptake by plants. Short-term (hour) 55Fe uptake rates by cotton (Gossypium spp.) and maize (Zea mays L.) plants from the modified siderophore were similar to those of the natural one.

36 Microbial siderophores exert a subtle role in Arabidopsis during infection by manipulating the immune response and the iron status (Dellagi et al., ) E. chrysanthemi is an enterobacterium causing soft rot disease Under iron deficiency, E. chrysanthemi releases two siderophores: 1) hydroxycarboxylate achromobactin (iron limiting.

siderophores synthesized by fluorescent pseudomonads under iron-limiting growth conditions. These molecules are essential for virulence of Pseudomonas aeruginosa in human diseases and are one of the mechanisms involved in the suppression of fungal soil-borne plant diseases (Jacques et al., ).

Interest in the Pseudomonads has. Siderophores and Biological Systems: An Overview.- Iron Uptake Systems in Fungi.- Absorption, Transport and Metabolic Significance of Iron in Plants.- Iron-Efficiency Reactions of Monocotyledonous and Dicotyledonous Plants.- Siderophore Involvement in Plant Iron Nutrition.- The Effect of Pseudomonas Siderophores on Iron Nutrition of Plants Siderophores are organic compounds with low molecular masses that are produced by microorganisms and plants growing under low iron conditions.

The primary function of these compounds is to chelate the ferric iron [Fe(III)] from different terrestrial and aquatic habitats and thereby make it available for microbial and plant. Iron is an essential trace element for most organisms.

A common way for bacteria to acquire this nutrient is through the secretion of siderophores, which. Hydroxamate siderophores in the iron nutrition of plants. Journal of Plant Nutrition5 (), DOI: /   Gabriel Soares Guerra, Andrea Balan, Genetic and structural determinants on iron assimilation pathways in the plant pathogen Xanthomonas citri subsp.

citri and Xanthomonas sp., Brazilian Journal of Microbiology, /sx, (). Iron is an essential nutrient and prudent iron acquisition and management are key traits of a successful pathogen.

Fungi use nonribosomally synthesized secreted iron chelators (siderophores) or reductive iron assimilation (RIA) mechanisms to acquire iron in a high affinity manner. Siderophores are low molecular weight organic complex produced by different strains of bacteria for the procurement of iron from the environment or host body under the iron deficient-conditions.

Mostly in the environment at physiological pH, the iron is present in the ferric ionic form (Fe3+) which is water-insoluble and thus inaccessible for them. Siderophores are specific ferric iron chelators synthesized by virtually all microorganisms in response to iron deficiency.

We have previously shown that they promote infection by the phytopathogenic enterobacteria Dickeya dadantii and Erwinia phores also have the ability to activate plant immunity. Search the world's most comprehensive index of full-text books.

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My library. Abstract. Siderophores comprise a high-affinity system for the uptake of iron from the environment, present in many microorganisms. This system involves the biosynthesis, exudation in the extracellular space, iron mobilization by competitive complexation or dissolution of iron-bearing molecules, and recognition and uptake of ferric siderophore complexes by highly efficient transport .Bacterial siderophores promote plant growth: Screening of catechol and hydroxamate siderophores.

An overview of siderophores for iron acquisition in microorganisms living in the extreme. Role of Phosphate-Solubilizing Microbes in the Management of Plant Diseases. , DOI: /_